diff options
169 files changed, 7556 insertions, 2488 deletions
diff --git a/Documentation/acpi/method-customizing.txt b/Documentation/acpi/method-customizing.txt index 3e1d25aee3f..5f55373dd53 100644 --- a/Documentation/acpi/method-customizing.txt +++ b/Documentation/acpi/method-customizing.txt @@ -66,3 +66,8 @@ Note: We can use a kernel with multiple custom ACPI method running, But each individual write to debugfs can implement a SINGLE method override. i.e. if we want to insert/override multiple ACPI methods, we need to redo step c) ~ g) for multiple times. + +Note: Be aware that root can mis-use this driver to modify arbitrary + memory and gain additional rights, if root's privileges got + restricted (for example if root is not allowed to load additional + modules after boot). diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index ff31b1cc50a..1a9446b5915 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -6,6 +6,42 @@ be removed from this file. --------------------------- +What: x86 floppy disable_hlt +When: 2012 +Why: ancient workaround of dubious utility clutters the + code used by everybody else. +Who: Len Brown <len.brown@intel.com> + +--------------------------- + +What: CONFIG_APM_CPU_IDLE, and its ability to call APM BIOS in idle +When: 2012 +Why: This optional sub-feature of APM is of dubious reliability, + and ancient APM laptops are likely better served by calling HLT. + Deleting CONFIG_APM_CPU_IDLE allows x86 to stop exporting + the pm_idle function pointer to modules. +Who: Len Brown <len.brown@intel.com> + +---------------------------- + +What: x86_32 "no-hlt" cmdline param +When: 2012 +Why: remove a branch from idle path, simplify code used by everybody. + This option disabled the use of HLT in idle and machine_halt() + for hardware that was flakey 15-years ago. Today we have + "idle=poll" that removed HLT from idle, and so if such a machine + is still running the upstream kernel, "idle=poll" is likely sufficient. +Who: Len Brown <len.brown@intel.com> + +---------------------------- + +What: x86 "idle=mwait" cmdline param +When: 2012 +Why: simplify x86 idle code +Who: Len Brown <len.brown@intel.com> + +---------------------------- + What: PRISM54 When: 2.6.34 diff --git a/Documentation/laptops/acer-wmi.txt b/Documentation/laptops/acer-wmi.txt deleted file mode 100644 index 4beafa663dd..00000000000 --- a/Documentation/laptops/acer-wmi.txt +++ /dev/null @@ -1,184 +0,0 @@ -Acer Laptop WMI Extras Driver -http://code.google.com/p/aceracpi -Version 0.3 -4th April 2009 - -Copyright 2007-2009 Carlos Corbacho <carlos@strangeworlds.co.uk> - -acer-wmi is a driver to allow you to control various parts of your Acer laptop -hardware under Linux which are exposed via ACPI-WMI. - -This driver completely replaces the old out-of-tree acer_acpi, which I am -currently maintaining for bug fixes only on pre-2.6.25 kernels. All development -work is now focused solely on acer-wmi. - -Disclaimer -********** - -Acer and Wistron have provided nothing towards the development acer_acpi or -acer-wmi. All information we have has been through the efforts of the developers -and the users to discover as much as possible about the hardware. - -As such, I do warn that this could break your hardware - this is extremely -unlikely of course, but please bear this in mind. - -Background -********** - -acer-wmi is derived from acer_acpi, originally developed by Mark -Smith in 2005, then taken over by Carlos Corbacho in 2007, in order to activate -the wireless LAN card under a 64-bit version of Linux, as acerhk[1] (the -previous solution to the problem) relied on making 32 bit BIOS calls which are -not possible in kernel space from a 64 bit OS. - -[1] acerhk: http://www.cakey.de/acerhk/ - -Supported Hardware -****************** - -NOTE: The Acer Aspire One is not supported hardware. It cannot work with -acer-wmi until Acer fix their ACPI-WMI implementation on them, so has been -blacklisted until that happens. - -Please see the website for the current list of known working hardware: - -http://code.google.com/p/aceracpi/wiki/SupportedHardware - -If your laptop is not listed, or listed as unknown, and works with acer-wmi, -please contact me with a copy of the DSDT. - -If your Acer laptop doesn't work with acer-wmi, I would also like to see the -DSDT. - -To send me the DSDT, as root/sudo: - -cat /sys/firmware/acpi/tables/DSDT > dsdt - -And send me the resulting 'dsdt' file. - -Usage -***** - -On Acer laptops, acer-wmi should already be autoloaded based on DMI matching. -For non-Acer laptops, until WMI based autoloading support is added, you will -need to manually load acer-wmi. - -acer-wmi creates /sys/devices/platform/acer-wmi, and fills it with various -files whose usage is detailed below, which enables you to control some of the -following (varies between models): - -* the wireless LAN card radio -* inbuilt Bluetooth adapter -* inbuilt 3G card -* mail LED of your laptop -* brightness of the LCD panel - -Wireless -******** - -With regards to wireless, all acer-wmi does is enable the radio on the card. It -is not responsible for the wireless LED - once the radio is enabled, this is -down to the wireless driver for your card. So the behaviour of the wireless LED, -once you enable the radio, will depend on your hardware and driver combination. - -e.g. With the BCM4318 on the Acer Aspire 5020 series: - -ndiswrapper: Light blinks on when transmitting -b43: Solid light, blinks off when transmitting - -Wireless radio control is unconditionally enabled - all Acer laptops that support -acer-wmi come with built-in wireless. However, should you feel so inclined to -ever wish to remove the card, or swap it out at some point, please get in touch -with me, as we may well be able to gain some data on wireless card detection. - -The wireless radio is exposed through rfkill. - -Bluetooth -********* - -For bluetooth, this is an internal USB dongle, so once enabled, you will get -a USB device connection event, and a new USB device appears. When you disable -bluetooth, you get the reverse - a USB device disconnect event, followed by the -device disappearing again. - -Bluetooth is autodetected by acer-wmi, so if you do not have a bluetooth module -installed in your laptop, this file won't exist (please be aware that it is -quite common for Acer not to fit bluetooth to their laptops - so just because -you have a bluetooth button on the laptop, doesn't mean that bluetooth is -installed). - -For the adventurously minded - if you want to buy an internal bluetooth -module off the internet that is compatible with your laptop and fit it, then -it will work just fine with acer-wmi. - -Bluetooth is exposed through rfkill. - -3G -** - -3G is currently not autodetected, so the 'threeg' file is always created under -sysfs. So far, no-one in possession of an Acer laptop with 3G built-in appears to -have tried Linux, or reported back, so we don't have any information on this. - -If you have an Acer laptop that does have a 3G card in, please contact me so we -can properly detect these, and find out a bit more about them. - -To read the status of the 3G card (0=off, 1=on): -cat /sys/devices/platform/acer-wmi/threeg - -To enable the 3G card: -echo 1 > /sys/devices/platform/acer-wmi/threeg - -To disable the 3G card: -echo 0 > /sys/devices/platform/acer-wmi/threeg - -To set the state of the 3G card when loading acer-wmi, pass: -threeg=X (where X is 0 or 1) - -Mail LED -******** - -This can be found in most older Acer laptops supported by acer-wmi, and many -newer ones - it is built into the 'mail' button, and blinks when active. - -On newer (WMID) laptops though, we have no way of detecting the mail LED. If -your laptop identifies itself in dmesg as a WMID model, then please try loading -acer_acpi with: - -force_series=2490 - -This will use a known alternative method of reading/ writing the mail LED. If -it works, please report back to me with the DMI data from your laptop so this -can be added to acer-wmi. - -The LED is exposed through the LED subsystem, and can be found in: - -/sys/devices/platform/acer-wmi/leds/acer-wmi::mail/ - -The mail LED is autodetected, so if you don't have one, the LED device won't -be registered. - -Backlight -********* - -The backlight brightness control is available on all acer-wmi supported -hardware. The maximum brightness level is usually 15, but on some newer laptops -it's 10 (this is again autodetected). - -The backlight is exposed through the backlight subsystem, and can be found in: - -/sys/devices/platform/acer-wmi/backlight/acer-wmi/ - -Credits -******* - -Olaf Tauber, who did the real hard work when he developed acerhk -http://www.cakey.de/acerhk/ -All the authors of laptop ACPI modules in the kernel, whose work -was an inspiration in the early days of acer_acpi -Mathieu Segaud, who solved the problem with having to modprobe the driver -twice in acer_acpi 0.2. -Jim Ramsay, who added support for the WMID interface -Mark Smith, who started the original acer_acpi - -And the many people who have used both acer_acpi and acer-wmi. diff --git a/MAINTAINERS b/MAINTAINERS index 2e94220898d..29801f760b6 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -223,10 +223,8 @@ S: Maintained F: drivers/platform/x86/acerhdf.c ACER WMI LAPTOP EXTRAS -M: Carlos Corbacho <carlos@strangeworlds.co.uk> -L: aceracpi@googlegroups.com (subscribers-only) +M: Joey Lee <jlee@novell.com> L: platform-driver-x86@vger.kernel.org -W: http://code.google.com/p/aceracpi S: Maintained F: drivers/platform/x86/acer-wmi.c @@ -271,10 +269,8 @@ S: Supported F: drivers/acpi/video.c ACPI WMI DRIVER -M: Carlos Corbacho <carlos@strangeworlds.co.uk> L: platform-driver-x86@vger.kernel.org -W: http://www.lesswatts.org/projects/acpi/ -S: Maintained +S: Orphan F: drivers/platform/x86/wmi.c AD1889 ALSA SOUND DRIVER @@ -3033,9 +3029,8 @@ S: Maintained F: drivers/net/wireless/hostap/ HP COMPAQ TC1100 TABLET WMI EXTRAS DRIVER -M: Carlos Corbacho <carlos@strangeworlds.co.uk> L: platform-driver-x86@vger.kernel.org -S: Odd Fixes +S: Orphan F: drivers/platform/x86/tc1100-wmi.c HP100: Driver for HP 10/100 Mbit/s Voice Grade Network Adapter Series diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index c4773a2ef3d..e4efacfe1b6 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -577,16 +577,16 @@ static inline void pgste_set_unlock(pte_t *ptep, pgste_t pgste) static inline pgste_t pgste_update_all(pte_t *ptep, pgste_t pgste) { #ifdef CONFIG_PGSTE - unsigned long pfn, bits; + unsigned long address, bits; unsigned char skey; - pfn = pte_val(*ptep) >> PAGE_SHIFT; - skey = page_get_storage_key(pfn); + address = pte_val(*ptep) & PAGE_MASK; + skey = page_get_storage_key(address); bits = skey & (_PAGE_CHANGED | _PAGE_REFERENCED); /* Clear page changed & referenced bit in the storage key */ if (bits) { skey ^= bits; - page_set_storage_key(pfn, skey, 1); + page_set_storage_key(address, skey, 1); } /* Transfer page changed & referenced bit to guest bits in pgste */ pgste_val(pgste) |= bits << 48; /* RCP_GR_BIT & RCP_GC_BIT */ @@ -628,16 +628,16 @@ static inline pgste_t pgste_update_young(pte_t *ptep, pgste_t pgste) static inline void pgste_set_pte(pte_t *ptep, pgste_t pgste) { #ifdef CONFIG_PGSTE - unsigned long pfn; + unsigned long address; unsigned long okey, nkey; - pfn = pte_val(*ptep) >> PAGE_SHIFT; - okey = nkey = page_get_storage_key(pfn); + address = pte_val(*ptep) & PAGE_MASK; + okey = nkey = page_get_storage_key(address); nkey &= ~(_PAGE_ACC_BITS | _PAGE_FP_BIT); /* Set page access key and fetch protection bit from pgste */ nkey |= (pgste_val(pgste) & (RCP_ACC_BITS | RCP_FP_BIT)) >> 56; if (okey != nkey) - page_set_storage_key(pfn, nkey, 1); + page_set_storage_key(address, nkey, 1); #endif } diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index 14c6fae6fe6..b09763fe5da 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c @@ -71,12 +71,15 @@ static void rcu_table_freelist_callback(struct rcu_head *head) void rcu_table_freelist_finish(void) { - struct rcu_table_freelist *batch = __get_cpu_var(rcu_table_freelist); + struct rcu_table_freelist **batchp = &get_cpu_var(rcu_table_freelist); + struct rcu_table_freelist *batch = *batchp; if (!batch) - return; + goto out; call_rcu(&batch->rcu, rcu_table_freelist_callback); - __get_cpu_var(rcu_table_freelist) = NULL; + *batchp = NULL; +out: + put_cpu_var(rcu_table_freelist); } static void smp_sync(void *arg) @@ -141,20 +144,23 @@ void crst_table_free_rcu(struct mm_struct *mm, unsigned long *table) { struct rcu_table_freelist *batch; + preempt_disable(); if (atomic_read(&mm->mm_users) < 2 && cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id()))) { crst_table_free(mm, table); - return; + goto out; } batch = rcu_table_freelist_get(mm); if (!batch) { smp_call_function(smp_sync, NULL, 1); crst_table_free(mm, table); - return; + goto out; } batch->table[--batch->crst_index] = table; if (batch->pgt_index >= batch->crst_index) rcu_table_freelist_finish(); +out: + preempt_enable(); } #ifdef CONFIG_64BIT @@ -323,16 +329,17 @@ void page_table_free_rcu(struct mm_struct *mm, unsigned long *table) struct page *page; unsigned long bits; + preempt_disable(); if (atomic_read(&mm->mm_users) < 2 && cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id()))) { page_table_free(mm, table); - return; + goto out; } batch = rcu_table_freelist_get(mm); if (!batch) { smp_call_function(smp_sync, NULL, 1); page_table_free(mm, table); - return; + goto out; } bits = (mm->context.has_pgste) ? 3UL : 1UL; bits <<= (__pa(table) & (PAGE_SIZE - 1)) / 256 / sizeof(unsigned long); @@ -345,6 +352,8 @@ void page_table_free_rcu(struct mm_struct *mm, unsigned long *table) batch->table[batch->pgt_index++] = table; if (batch->pgt_index >= batch->crst_index) rcu_table_freelist_finish(); +out: + preempt_enable(); } /* diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index e1e50101b3b..0249b8b4db5 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -11,6 +11,7 @@ config TILE select GENERIC_IRQ_PROBE select GENERIC_PENDING_IRQ if SMP select GENERIC_IRQ_SHOW + select SYS_HYPERVISOR # FIXME: investigate whether we need/want these options. # select HAVE_IOREMAP_PROT diff --git a/arch/tile/include/asm/hardwall.h b/arch/tile/include/asm/hardwall.h index 0bed3ec7b42..2ac422848c7 100644 --- a/arch/tile/include/asm/hardwall.h +++ b/arch/tile/include/asm/hardwall.h @@ -40,6 +40,10 @@ #define HARDWALL_DEACTIVATE \ _IO(HARDWALL_IOCTL_BASE, _HARDWALL_DEACTIVATE) +#define _HARDWALL_GET_ID 4 +#define HARDWALL_GET_ID \ + _IO(HARDWALL_IOCTL_BASE, _HARDWALL_GET_ID) + #ifndef __KERNEL__ /* This is the canonical name expected by userspace. */ @@ -47,9 +51,14 @@ #else -/* Hook for /proc/tile/hardwall. */ -struct seq_file; -int proc_tile_hardwall_show(struct seq_file *sf, void *v); +/* /proc hooks for hardwall. */ +struct proc_dir_entry; +#ifdef CONFIG_HARDWALL +void proc_tile_hardwall_init(struct proc_dir_entry *root); +int proc_pid_hardwall(struct task_struct *task, char *buffer); +#else +static inline void proc_tile_hardwall_init(struct proc_dir_entry *root) {} +#endif #endif diff --git a/arch/tile/kernel/Makefile b/arch/tile/kernel/Makefile index b4c8e8ec45d..b4dbc057baa 100644 --- a/arch/tile/kernel/Makefile +++ b/arch/tile/kernel/Makefile @@ -5,7 +5,7 @@ extra-y := vmlinux.lds head_$(BITS).o obj-y := backtrace.o entry.o init_task.o irq.o messaging.o \ pci-dma.o proc.o process.o ptrace.o reboot.o \ - setup.o signal.o single_step.o stack.o sys.o time.o traps.o \ + setup.o signal.o single_step.o stack.o sys.o sysfs.o time.o traps.o \ intvec_$(BITS).o regs_$(BITS).o tile-desc_$(BITS).o obj-$(CONFIG_HARDWALL) += hardwall.o diff --git a/arch/tile/kernel/hardwall.c b/arch/tile/kernel/hardwall.c index 3bddef710de..8c41891aab3 100644 --- a/arch/tile/kernel/hardwall.c +++ b/arch/tile/kernel/hardwall.c @@ -40,16 +40,25 @@ struct hardwall_info { struct list_head list; /* "rectangles" list */ struct list_head task_head; /* head of tasks in this hardwall */ + struct cpumask cpumask; /* cpus in the rectangle */ int ulhc_x; /* upper left hand corner x coord */ int ulhc_y; /* upper left hand corner y coord */ int width; /* rectangle width */ int height; /* rectangle height */ + int id; /* integer id for this hardwall */ int teardown_in_progress; /* are we tearing this one down? */ }; /* Currently allocated hardwall rectangles */ static LIST_HEAD(rectangles); +/* /proc/tile/hardwall */ +static struct proc_dir_entry *hardwall_proc_dir; + +/* Functions to manage files in /proc/tile/hardwall. */ +static void hardwall_add_proc(struct hardwall_info *rect); +static void hardwall_remove_proc(struct hardwall_info *rect); + /* * Guard changes to the hardwall data structures. * This could be finer grained (e.g. one lock for the list of hardwall @@ -105,6 +114,8 @@ static int setup_rectangle(struct hardwall_info *r, struct cpumask *mask) r->ulhc_y = cpu_y(ulhc); r->width = cpu_x(lrhc) - r->ulhc_x + 1; r->height = cpu_y(lrhc) - r->ulhc_y + 1; + cpumask_copy(&r->cpumask, mask); + r->id = ulhc; /* The ulhc cpu id can be the hardwall id. */ /* Width and height must be positive */ if (r->width <= 0 || r->height <= 0) @@ -388,6 +399,9 @@ static struct hardwall_info *hardwall_create( /* Set up appropriate hardwalling on all affected cpus. */ hardwall_setup(rect); + /* Create a /proc/tile/hardwall entry. */ + hardwall_add_proc(rect); + return rect; } @@ -645,6 +659,9 @@ static void hardwall_destroy(struct hardwall_info *rect) /* Restart switch and disable firewall. */ on_each_cpu_mask(&mask, restart_udn_switch, NULL, 1); + /* Remove the /proc/tile/hardwall entry. */ + hardwall_remove_proc(rect); + /* Now free the rectangle from the list. */ spin_lock_irqsave(&hardwall_lock, flags); BUG_ON(!list_empty(&rect->task_head)); @@ -654,35 +671,57 @@ static void hardwall_destroy(struct hardwall_info *rect) } -/* - * Dump hardwall state via /proc; initialized in arch/tile/sys/proc.c. - */ -int proc_tile_hardwall_show(struct seq_file *sf, void *v) +static int hardwall_proc_show(struct seq_file *sf, void *v) { - struct hardwall_info *r; + struct hardwall_info *rect = sf->private; + char buf[256]; - if (udn_disabled) { - seq_printf(sf, "%dx%d 0,0 pids:\n", smp_width, smp_height); - return 0; - } - - spin_lock_irq(&hardwall_lock); - list_for_each_entry(r, &rectangles, list) { - struct task_struct *p; - seq_printf(sf, "%dx%d %d,%d pids:", - r->width, r->height, r->ulhc_x, r->ulhc_y); - list_for_each_entry(p, &r->task_head, thread.hardwall_list) { - unsigned int cpu = cpumask_first(&p->cpus_allowed); - unsigned int x = cpu % smp_width; - unsigned int y = cpu / smp_width; - seq_printf(sf, " %d@%d,%d", p->pid, x, y); - } - seq_printf(sf, "\n"); - } - spin_unlock_irq(&hardwall_lock); + int rc = cpulist_scnprintf(buf, sizeof(buf), &rect->cpumask); + buf[rc++] = '\n'; + seq_write(sf, buf, rc); return 0; } +static int hardwall_proc_open(struct inode *inode, + struct file *file) +{ + return single_open(file, hardwall_proc_show, PDE(inode)->data); +} + +static const struct file_operations hardwall_proc_fops = { + .open = hardwall_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static void hardwall_add_proc(struct hardwall_info *rect) +{ + char buf[64]; + snprintf(buf, sizeof(buf), "%d", rect->id); + proc_create_data(buf, 0444, hardwall_proc_dir, + &hardwall_proc_fops, rect); +} + +static void hardwall_remove_proc(struct hardwall_info *rect) +{ + char buf[64]; + snprintf(buf, sizeof(buf), "%d", rect->id); + remove_proc_entry(buf, hardwall_proc_dir); +} + +int proc_pid_hardwall(struct task_struct *task, char *buffer) +{ + struct hardwall_info *rect = task->thread.hardwall; + return rect ? sprintf(buffer, "%d\n", rect->id) : 0; +} + +void proc_tile_hardwall_init(struct proc_dir_entry *root) +{ + if (!udn_disabled) + hardwall_proc_dir = proc_mkdir("hardwall", root); +} + /* * Character device support via ioctl/close. @@ -716,6 +755,9 @@ static long hardwall_ioctl(struct file *file, unsigned int a, unsigned long b) return -EINVAL; return hardwall_deactivate(current); + case _HARDWALL_GET_ID: + return rect ? rect->id : -EINVAL; + default: return -EINVAL; } diff --git a/arch/tile/kernel/proc.c b/arch/tile/kernel/proc.c index 2e02c41ddf3..62d820833c6 100644 --- a/arch/tile/kernel/proc.c +++ b/arch/tile/kernel/proc.c @@ -27,6 +27,7 @@ #include <asm/processor.h> #include <asm/sections.h> #include <asm/homecache.h> +#include <asm/hardwall.h> #include <arch/chip.h> @@ -88,3 +89,75 @@ const struct seq_operations cpuinfo_op = { .stop = c_stop, .show = show_cpuinfo, }; + +/* + * Support /proc/tile directory + */ + +static int __init proc_tile_init(void) +{ + struct proc_dir_entry *root = proc_mkdir("tile", NULL); + if (root == NULL) + return 0; + + proc_tile_hardwall_init(root); + + return 0; +} + +arch_initcall(proc_tile_init); + +/* + * Support /proc/sys/tile directory + */ + +#ifndef __tilegx__ /* FIXME: GX: no support for unaligned access yet */ +static ctl_table unaligned_subtable[] = { + { + .procname = "enabled", + .data = &unaligned_fixup, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &proc_dointvec + }, + { + .procname = "printk", + .data = &unaligned_printk, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &proc_dointvec + }, + { + .procname = "count", + .data = &unaligned_fixup_count, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &proc_dointvec + }, + {} +}; + +static ctl_table unaligned_table[] = { + { + .procname = "unaligned_fixup", + .mode = 0555, + .child = unaligned_subtable + }, + {} +}; +#endif + +static struct ctl_path tile_path[] = { + { .procname = "tile" }, + { } +}; + +static int __init proc_sys_tile_init(void) +{ +#ifndef __tilegx__ /* FIXME: GX: no support for unaligned access yet */ + register_sysctl_paths(tile_path, unaligned_table); +#endif + return 0; +} + +arch_initcall(proc_sys_tile_init); diff --git a/arch/tile/kernel/sysfs.c b/arch/tile/kernel/sysfs.c new file mode 100644 index 00000000000..b671a86f451 --- /dev/null +++ b/arch/tile/kernel/sysfs.c @@ -0,0 +1,185 @@ +/* + * Copyright 2011 Tilera Corporation. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, version 2. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for + * more details. + * + * /sys entry support. + */ + +#include <linux/sysdev.h> +#include <linux/cpu.h> +#include <linux/slab.h> +#include <linux/smp.h> +#include <hv/hypervisor.h> + +/* Return a string queried from the hypervisor, truncated to page size. */ +static ssize_t get_hv_confstr(char *page, int query) +{ + ssize_t n = hv_confstr(query, (unsigned long)page, PAGE_SIZE - 1); + n = n < 0 ? 0 : min(n, (ssize_t)PAGE_SIZE - 1) - 1; + if (n) + page[n++] = '\n'; + page[n] = '\0'; + return n; +} + +static ssize_t chip_width_show(struct sysdev_class *dev, + struct sysdev_class_attribute *attr, + char *page) +{ + return sprintf(page, "%u\n", smp_width); +} +static SYSDEV_CLASS_ATTR(chip_width, 0444, chip_width_show, NULL); + +static ssize_t chip_height_show(struct sysdev_class *dev, + struct sysdev_class_attribute *attr, + char *page) +{ + return sprintf(page, "%u\n", smp_height); +} +static SYSDEV_CLASS_ATTR(chip_height, 0444, chip_height_show, NULL); + +static ssize_t chip_serial_show(struct sysdev_class *dev, + struct sysdev_class_attribute *attr, + char *page) +{ + return get_hv_confstr(page, HV_CONFSTR_CHIP_SERIAL_NUM); +} +static SYSDEV_CLASS_ATTR(chip_serial, 0444, chip_serial_show, NULL); + +static ssize_t chip_revision_show(struct sysdev_class *dev, + struct sysdev_class_attribute *attr, + char *page) +{ + return get_hv_confstr(page, HV_CONFSTR_CHIP_REV); +} +static SYSDEV_CLASS_ATTR(chip_revision, 0444, chip_revision_show, NULL); + + +static ssize_t type_show(struct sysdev_class *dev, + struct sysdev_class_attribute *attr, + char *page) +{ + return sprintf(page, "tilera\n"); +} +static SYSDEV_CLASS_ATTR(type, 0444, type_show, NULL); + +#define HV_CONF_ATTR(name, conf) \ + static ssize_t name ## _show(struct sysdev_class *dev, \ + struct sysdev_class_attribute *attr, \ + char *page) \ + { \ + return get_hv_confstr(page, conf); \ + } \ + static SYSDEV_CLASS_ATTR(name, 0444, name ## _show, NULL); + +HV_CONF_ATTR(version, HV_CONFSTR_HV_SW_VER) +HV_CONF_ATTR(config_version, HV_CONFSTR_HV_CONFIG_VER) + +HV_CONF_ATTR(board_part, HV_CONFSTR_BOARD_PART_NUM) +HV_CONF_ATTR(board_serial, HV_CONFSTR_BOARD_SERIAL_NUM) +HV_CONF_ATTR(board_revision, HV_CONFSTR_BOARD_REV) +HV_CONF_ATTR(board_description, HV_CONFSTR_BOARD_DESC) +HV_CONF_ATTR(mezz_part, HV_CONFSTR_MEZZ_PART_NUM) +HV_CONF_ATTR(mezz_serial, HV_CONFSTR_MEZZ_SERIAL_NUM) +HV_CONF_ATTR(mezz_revision, HV_CONFSTR_MEZZ_REV) +HV_CONF_ATTR(mezz_description, HV_CONFSTR_MEZZ_DESC) +HV_CONF_ATTR(switch_control, HV_CONFSTR_SWITCH_CONTROL) + +static struct attribute *board_attrs[] = { + &attr_board_part.attr, + &attr_board_serial.attr, + &attr_board_revision.attr, + &attr_board_description.attr, + &attr_mezz_part.attr, + &attr_mezz_serial.attr, + &attr_mezz_revision.attr, + &attr_mezz_description.attr, + &attr_switch_control.attr, + NULL +}; + +static struct attribute_group board_attr_group = { + .name = "board", + .attrs = board_attrs, +}; + + +static struct bin_attribute hvconfig_bin; + +static ssize_t +hvconfig_bin_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + static size_t size; + + /* Lazily learn the true size (minus the trailing NUL). */ + if (size == 0) + size = hv_confstr(HV_CONFSTR_HV_CONFIG, 0, 0) - 1; + + /* Check and adjust input parameters. */ + if (off > size) + return -EINVAL; + if (count > size - off) + count = size - off; + + if (count) { + /* Get a copy of the hvc and copy out the relevant portion. */ + char *hvc; + + size = off + count; + hvc = kmalloc(size, GFP_KERNEL); + if (hvc == NULL) + return -ENOMEM; + hv_confstr(HV_CONFSTR_HV_CONFIG, (unsigned long)hvc, size); + memcpy(buf, hvc + off, count); + kfree(hvc); + } + + return count; +} + +static int __init create_sysfs_entries(void) +{ + struct sysdev_class *cls = &cpu_sysdev_class; + int err = 0; + +#define create_cpu_attr(name) \ + if (!err) \ + err = sysfs_create_file(&cls->kset.kobj, &attr_##name.attr); + create_cpu_attr(chip_width); + create_cpu_attr(chip_height); + create_cpu_attr(chip_serial); + create_cpu_attr(chip_revision); + +#define create_hv_attr(name) \ + if (!err) \ + err = sysfs_create_file(hypervisor_kobj, &attr_##name.attr); + create_hv_attr(type); + create_hv_attr(version); + create_hv_attr(config_version); + + if (!err) + err = sysfs_create_group(hypervisor_kobj, &board_attr_group); + + if (!err) { + sysfs_bin_attr_init(&hvconfig_bin); + hvconfig_bin.attr.name = "hvconfig"; + hvconfig_bin.attr.mode = S_IRUGO; + hvconfig_bin.read = hvconfig_bin_read; + hvconfig_bin.size = PAGE_SIZE; + err = sysfs_create_bin_file(hypervisor_kobj, &hvconfig_bin); + } + + return err; +} +subsys_initcall(create_sysfs_entries); diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h index 416d865eae3..610001d385d 100644 --- a/arch/x86/include/asm/acpi.h +++ b/arch/x86/include/asm/acpi.h @@ -139,7 +139,7 @@ static inline unsigned int acpi_processor_cstate_check(unsigned int max_cstate) boot_cpu_data.x86_model <= 0x05 && boot_cpu_data.x86_mask < 0x0A) return 1; - else if (c1e_detected) + else if (amd_e400_c1e_detected) return 1; else return max_cstate; diff --git a/arch/x86/include/asm/idle.h b/arch/x86/include/asm/idle.h index 38d87379e27..f49253d7571 100644 --- a/arch/x86/include/asm/idle.h +++ b/arch/x86/include/asm/idle.h @@ -16,6 +16,6 @@ static inline void enter_idle(void) { } static inline void exit_idle(void) { } #endif /* CONFIG_X86_64 */ -void c1e_remove_cpu(int cpu); +void amd_e400_remove_cpu(int cpu); #endif /* _ASM_X86_IDLE_H */ diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 4c25ab48257..219371546af 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -754,10 +754,10 @@ static inline void __sti_mwait(unsigned long eax, unsigned long ecx) extern void mwait_idle_with_hints(unsigned long eax, unsigned long ecx); extern void select_idle_routine(const struct cpuinfo_x86 *c); -extern void init_c1e_mask(void); +extern void init_amd_e400_c1e_mask(void); extern unsigned long boot_option_idle_override; -extern bool c1e_detected; +extern bool amd_e400_c1e_detected; enum idle_boot_override {IDLE_NO_OVERRIDE=0, IDLE_HALT, IDLE_NOMWAIT, IDLE_POLL, IDLE_FORCE_MWAIT}; diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c index 3bfa0223596..965a7666c28 100644 --- a/arch/x86/kernel/apm_32.c +++ b/arch/x86/kernel/apm_32.c @@ -361,6 +361,7 @@ struct apm_user { * idle percentage above which bios idle calls are done */ #ifdef CONFIG_APM_CPU_IDLE +#warning deprecated CONFIG_APM_CPU_IDLE will be deleted in 2012 #define DEFAULT_IDLE_THRESHOLD 95 #else #define DEFAULT_IDLE_THRESHOLD 100 @@ -904,6 +905,7 @@ static void apm_cpu_idle(void) unsigned int jiffies_since_last_check = jiffies - last_jiffies; unsigned int bucket; + WARN_ONCE(1, "deprecated apm_cpu_idle will be deleted in 2012"); recalc: if (jiffies_since_last_check > IDLE_CALC_LIMIT) { use_apm_idle = 0; diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index c39576cb301..525514cf33c 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -19,6 +19,7 @@ static int __init no_halt(char *s) { + WARN_ONCE(1, "\"no-hlt\" is deprecated, please use \"idle=poll\"\n"); boot_cpu_data.hlt_works_ok = 0; return 1; } diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 53f02f5d8cc..22a073d7fbf 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -902,7 +902,7 @@ static void vgetcpu_set_mode(void) void __init identify_boot_cpu(void) { identify_cpu(&boot_cpu_data); - init_c1e_mask(); + init_amd_e400_c1e_mask(); #ifdef CONFIG_X86_32 sysenter_setup(); enable_sep_cpu(); diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 88a90a977f8..426a5b66f7e 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -337,7 +337,9 @@ EXPORT_SYMBOL(boot_option_idle_override); * Powermanagement idle function, if any.. */ void (*pm_idle)(void); +#if defined(CONFIG_APM_MODULE) && defined(CONFIG_APM_CPU_IDLE) EXPORT_SYMBOL(pm_idle); +#endif #ifdef CONFIG_X86_32 /* @@ -397,7 +399,7 @@ void default_idle(void) cpu_relax(); } } -#ifdef CONFIG_APM_MODULE +#if defined(CONFIG_APM_MODULE) && defined(CONFIG_APM_CPU_IDLE) EXPORT_SYMBOL(default_idle); #endif @@ -535,45 +537,45 @@ int mwait_usable(const struct cpuinfo_x86 *c) return (edx & MWAIT_EDX_C1); } -bool c1e_detected; -EXPORT_SYMBOL(c1e_detected); +bool amd_e400_c1e_detected; +EXPORT_SYMBOL(amd_e400_c1e_detected); -static cpumask_var_t c1e_mask; +static cpumask_var_t amd_e400_c1e_mask; -void c1e_remove_cpu(int cpu) +void amd_e400_remove_cpu(int cpu) { - if (c1e_mask != NULL) - cpumask_clear_cpu(cpu, c1e_mask); + if (amd_e400_c1e_mask != NULL) + cpumask_clear_cpu(cpu, amd_e400_c1e_mask); } /* - * C1E aware idle routine. We check for C1E active in the interrupt + * AMD Erratum 400 aware idle routine. We check for C1E active in the interrupt * pending message MSR. If we detect C1E, then we handle it the same * way as C3 power states (local apic timer and TSC stop) */ -static void c1e_idle(void) +static void amd_e400_idle(void) { if (need_resched()) return; - if (!c1e_detected) { + if (!amd_e400_c1e_detected) { u32 lo, hi; rdmsr(MSR_K8_INT_PENDING_MSG, lo, hi); if (lo & K8_INTP_C1E_ACTIVE_MASK) { - c1e_detected = true; + amd_e400_c1e_detected = true; if (!boot_cpu_has(X86_FEATURE_NONSTOP_TSC)) mark_tsc_unstable("TSC halt in AMD C1E"); printk(KERN_INFO "System has AMD C1E enabled\n"); } } - if (c1e_detected) { + if (amd_e400_c1e_detected) { int cpu = smp_processor_id(); - if (!cpumask_test_cpu(cpu, c1e_mask)) { - cpumask_set_cpu(cpu, c1e_mask); + if (!cpumask_test_cpu(cpu, amd_e400_c1e_mask)) { + cpumask_set_cpu(cpu, amd_e400_c1e_mask); /* * Force broadcast so ACPI can not interfere. */ @@ -616,17 +618,17 @@ void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c) pm_idle = mwait_idle; } else if (cpu_has_amd_erratum(amd_erratum_400)) { /* E400: APIC timer interrupt does not wake up CPU from C1e */ - printk(KERN_INFO "using C1E aware idle routine\n"); - pm_idle = c1e_idle; + printk(KERN_INFO "using AMD E400 aware idle routine\n"); + pm_idle = amd_e400_idle; } else pm_idle = default_idle; } -void __init init_c1e_mask(void) +void __init init_amd_e400_c1e_mask(void) { - /* If we're using c1e_idle, we need to allocate c1e_mask. */ - if (pm_idle == c1e_idle) - zalloc_cpumask_var(&c1e_mask, GFP_KERNEL); + /* If we're using amd_e400_idle, we need to allocate amd_e400_c1e_mask. */ + if (pm_idle == amd_e400_idle) + zalloc_cpumask_var(&amd_e400_c1e_mask, GFP_KERNEL); } static int __init idle_setup(char *str) @@ -640,6 +642,7 @@ static int __init idle_setup(char *str) boot_option_idle_override = IDLE_POLL; } else if (!strcmp(str, "mwait")) { boot_option_idle_override = IDLE_FORCE_MWAIT; + WARN_ONCE(1, "\idle=mwait\" will be removed in 2012\"\n"); } else if (!strcmp(str, "halt")) { /* * When the boot option of idle=halt is added, halt is diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index a3c430bdfb6..eefd96765e7 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -1307,7 +1307,7 @@ void play_dead_common(void) { idle_task_exit(); reset_lazy_tlbstate(); - c1e_remove_cpu(raw_smp_processor_id()); + amd_e400_remove_cpu(raw_smp_processor_id()); mb(); /* Ack it */ diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index bc2218db5ba..de0e3df7677 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -369,6 +369,21 @@ config ACPI_HED which is used to report some hardware errors notified via SCI, mainly the corrected errors. +config ACPI_CUSTOM_METHOD + tristate "Allow ACPI methods to be inserted/replaced at run time" + depends on DEBUG_FS + default n + help + This debug facility allows ACPI AML methods to me inserted and/or + replaced without rebooting the system. For details refer to: + Documentation/acpi/method-customizing.txt. + + NOTE: This option is security sensitive, because it allows arbitrary + kernel memory to be written to by root (uid=0) users, allowing them + to bypass certain security measures (e.g. if root is not allowed to + load additional kernel modules after boot, this feature may be used + to override that restriction). + source "drivers/acpi/apei/Kconfig" endif # ACPI diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index b66fbb2fc85..ecb26b4f29a 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -61,6 +61,7 @@ obj-$(CONFIG_ACPI_SBS) += sbshc.o obj-$(CONFIG_ACPI_SBS) += sbs.o obj-$(CONFIG_ACPI_HED) += hed.o obj-$(CONFIG_ACPI_EC_DEBUGFS) += ec_sys.o +obj-$(CONFIG_ACPI_CUSTOM_METHOD)+= custom_method.o # processor has its own "processor." module_param namespace processor-y := processor_driver.o processor_throttling.o diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile index a1224712fd0..301bd2d388a 100644 --- a/drivers/acpi/acpica/Makefile +++ b/drivers/acpi/acpica/Makefile @@ -14,7 +14,7 @@ acpi-y := dsfield.o dsmthdat.o dsopcode.o dswexec.o dswscope.o \ acpi-y += evevent.o evregion.o evsci.o evxfevnt.o \ evmisc.o evrgnini.o evxface.o evxfregn.o \ - evgpe.o evgpeblk.o evgpeinit.o evgpeutil.o evxfgpe.o + evgpe.o evgpeblk.o evgpeinit.o evgpeutil.o evxfgpe.o evglock.o acpi-y += exconfig.o exfield.o exnames.o exoparg6.o exresolv.o exstorob.o\ exconvrt.o exfldio.o exoparg1.o exprep.o exresop.o exsystem.o\ diff --git a/drivers/acpi/acpica/acconfig.h b/drivers/acpi/acpica/acconfig.h index ab87396c2c0..bc533dde16c 100644 --- a/drivers/acpi/acpica/acconfig.h +++ b/drivers/acpi/acpica/acconfig.h @@ -187,7 +187,6 @@ /* Operation regions */ -#define ACPI_NUM_PREDEFINED_REGIONS 9 #define ACPI_USER_REGION_BEGIN 0x80 /* Maximum space_ids for Operation Regions */ diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h index 41d247daf46..bea3b489918 100644 --- a/drivers/acpi/acpica/acevents.h +++ b/drivers/acpi/acpica/acevents.h @@ -58,12 +58,6 @@ u32 acpi_ev_fixed_event_detect(void); */ u8 acpi_ev_is_notify_object(struct acpi_namespace_node *node); -acpi_status acpi_ev_acquire_global_lock(u16 timeout); - -acpi_status acpi_ev_release_global_lock(void); - -acpi_status acpi_ev_init_global_lock_handler(void); - u32 acpi_ev_get_gpe_number_index(u32 gpe_number); acpi_status @@ -71,6 +65,17 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node *node, u32 notify_value); /* + * evglock - Global Lock support + */ +acpi_status acpi_ev_init_global_lock_handler(void); + +acpi_status acpi_ev_acquire_global_lock(u16 timeout); + +acpi_status acpi_ev_release_global_lock(void); + +acpi_status acpi_ev_remove_global_lock_handler(void); + +/* * evgpe - Low-level GPE support */ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list); diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index d69750b83b3..73863d86f02 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -214,24 +214,23 @@ ACPI_EXTERN struct acpi_mutex_info acpi_gbl_mutex_info[ACPI_NUM_MUTEX]; /* * Global lock mutex is an actual AML mutex object - * Global lock semaphore works in conjunction with the HW global lock + * Global lock semaphore works in conjunction with the actual global lock + * Global lock spinlock is used for "pending" handshake */ ACPI_EXTERN union acpi_operand_object *acpi_gbl_global_lock_mutex; ACPI_EXTERN acpi_semaphore acpi_gbl_global_lock_semaphore; +ACPI_EXTERN acpi_spinlock acpi_gbl_global_lock_pending_lock; ACPI_EXTERN u16 acpi_gbl_global_lock_handle; ACPI_EXTERN u8 acpi_gbl_global_lock_acquired; ACPI_EXTERN u8 acpi_gbl_global_lock_present; +ACPI_EXTERN u8 acpi_gbl_global_lock_pending; /* * Spinlocks are used for interfaces that can be possibly called at * interrupt level */ -ACPI_EXTERN spinlock_t _acpi_gbl_gpe_lock; /* For GPE data structs and registers */ -ACPI_EXTERN spinlock_t _acpi_gbl_hardware_lock; /* For ACPI H/W except GPE registers */ -ACPI_EXTERN spinlock_t _acpi_ev_global_lock_pending_lock; /* For global lock */ -#define acpi_gbl_gpe_lock &_acpi_gbl_gpe_lock -#define acpi_gbl_hardware_lock &_acpi_gbl_hardware_lock -#define acpi_ev_global_lock_pending_lock &_acpi_ev_global_lock_pending_lock +ACPI_EXTERN acpi_spinlock acpi_gbl_gpe_lock; /* For GPE data structs and registers */ +ACPI_EXTERN acpi_spinlock acpi_gbl_hardware_lock; /* For ACPI H/W except GPE registers */ /***************************************************************************** * diff --git a/drivers/acpi/acpica/amlcode.h b/drivers/acpi/acpica/amlcode.h index f4f0998d396..1077f17859e 100644 --- a/drivers/acpi/acpica/amlcode.h +++ b/drivers/acpi/acpica/amlcode.h @@ -394,21 +394,6 @@ #define AML_CLASS_METHOD_CALL 0x09 #define AML_CLASS_UNKNOWN 0x0A -/* Predefined Operation Region space_iDs */ - -typedef enum { - REGION_MEMORY = 0, - REGION_IO, - REGION_PCI_CONFIG, - REGION_EC, - REGION_SMBUS, - REGION_CMOS, - REGION_PCI_BAR, - REGION_IPMI, - REGION_DATA_TABLE, /* Internal use only */ - REGION_FIXED_HW = 0x7F -} AML_REGION_TYPES; - /* Comparison operation codes for match_op operator */ typedef enum { diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c index 23a3b1ab20c..324acec1179 100644 --- a/drivers/acpi/acpica/dswload.c +++ b/drivers/acpi/acpica/dswload.c @@ -450,7 +450,7 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state) status = acpi_ex_create_region(op->named.data, op->named.length, - REGION_DATA_TABLE, + ACPI_ADR_SPACE_DATA_TABLE, walk_state); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); diff --git a/drivers/acpi/acpica/dswload2.c b/drivers/acpi/acpica/dswload2.c index 4be4e921dfe..976318138c5 100644 --- a/drivers/acpi/acpica/dswload2.c +++ b/drivers/acpi/acpica/dswload2.c @@ -562,7 +562,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state) ((op->common.value.arg)->common.value. integer); } else { - region_space = REGION_DATA_TABLE; + region_space = ACPI_ADR_SPACE_DATA_TABLE; } /* diff --git a/drivers/acpi/acpica/evglock.c b/drivers/acpi/acpica/evglock.c new file mode 100644 index 00000000000..56a562a1e5d --- /dev/null +++ b/drivers/acpi/acpica/evglock.c @@ -0,0 +1,335 @@ +/****************************************************************************** + * + * Module Name: evglock - Global Lock support + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2011, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acevents.h" +#include "acinterp.h" + +#define _COMPONENT ACPI_EVENTS +ACPI_MODULE_NAME("evglock") + +/* Local prototypes */ +static u32 acpi_ev_global_lock_handler(void *context); + +/******************************************************************************* + * + * FUNCTION: acpi_ev_init_global_lock_handler + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Install a handler for the global lock release event + * + ******************************************************************************/ + +acpi_status acpi_ev_init_global_lock_handler(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_init_global_lock_handler); + + /* Attempt installation of the global lock handler */ + + status = acpi_install_fixed_event_handler(ACPI_EVENT_GLOBAL, + acpi_ev_global_lock_handler, + NULL); + + /* + * If the global lock does not exist on this platform, the attempt to + * enable GBL_STATUS will fail (the GBL_ENABLE bit will not stick). + * Map to AE_OK, but mark global lock as not present. Any attempt to + * actually use the global lock will be flagged with an error. + */ + acpi_gbl_global_lock_present = FALSE; + if (status == AE_NO_HARDWARE_RESPONSE) { + ACPI_ERROR((AE_INFO, + "No response from Global Lock hardware, disabling lock")); + + return_ACPI_STATUS(AE_OK); + } + + status = acpi_os_create_lock(&acpi_gbl_global_lock_pending_lock); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + acpi_gbl_global_lock_pending = FALSE; + acpi_gbl_global_lock_present = TRUE; + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_remove_global_lock_handler + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Remove the handler for the Global Lock + * + ******************************************************************************/ + +acpi_status acpi_ev_remove_global_lock_handler(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(ev_remove_global_lock_handler); + + acpi_gbl_global_lock_present = FALSE; + status = acpi_remove_fixed_event_handler(ACPI_EVENT_GLOBAL, + acpi_ev_global_lock_handler); + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_global_lock_handler + * + * PARAMETERS: Context - From thread interface, not used + * + * RETURN: ACPI_INTERRUPT_HANDLED + * + * DESCRIPTION: Invoked directly from the SCI handler when a global lock + * release interrupt occurs. If there is actually a pending + * request for the lock, signal the waiting thread. + * + ******************************************************************************/ + +static u32 acpi_ev_global_lock_handler(void *context) +{ + acpi_status status; + acpi_cpu_flags flags; + + flags = acpi_os_acquire_lock(acpi_gbl_global_lock_pending_lock); + + /* + * If a request for the global lock is not actually pending, + * we are done. This handles "spurious" global lock interrupts + * which are possible (and have been seen) with bad BIOSs. + */ + if (!acpi_gbl_global_lock_pending) { + goto cleanup_and_exit; + } + + /* + * Send a unit to the global lock semaphore. The actual acquisition + * of the global lock will be performed by the waiting thread. + */ + status = acpi_os_signal_semaphore(acpi_gbl_global_lock_semaphore, 1); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, "Could not signal Global Lock semaphore")); + } + + acpi_gbl_global_lock_pending = FALSE; + + cleanup_and_exit: + + acpi_os_release_lock(acpi_gbl_global_lock_pending_lock, flags); + return (ACPI_INTERRUPT_HANDLED); +} + +/****************************************************************************** + * + * FUNCTION: acpi_ev_acquire_global_lock + * + * PARAMETERS: Timeout - Max time to wait for the lock, in millisec. + * + * RETURN: Status + * + * DESCRIPTION: Attempt to gain ownership of the Global Lock. + * + * MUTEX: Interpreter must be locked + * + * Note: The original implementation allowed multiple threads to "acquire" the + * Global Lock, and the OS would hold the lock until the last thread had + * released it. However, this could potentially starve the BIOS out of the + * lock, especially in the case where there is a tight handshake between the + * Embedded Controller driver and the BIOS. Therefore, this implementation + * allows only one thread to acquire the HW Global Lock at a time, and makes + * the global lock appear as a standard mutex on the OS side. + * + *****************************************************************************/ + +acpi_status acpi_ev_acquire_global_lock(u16 timeout) +{ + acpi_cpu_flags flags; + acpi_status status; + u8 acquired = FALSE; + + ACPI_FUNCTION_TRACE(ev_acquire_global_lock); + + /* + * Only one thread can acquire the GL at a time, the global_lock_mutex + * enforces this. This interface releases the interpreter if we must wait. + */ + status = + acpi_ex_system_wait_mutex(acpi_gbl_global_lock_mutex->mutex. + os_mutex, timeout); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Update the global lock handle and check for wraparound. The handle is + * only used for the external global lock interfaces, but it is updated + * here to properly handle the case where a single thread may acquire the + * lock via both the AML and the acpi_acquire_global_lock interfaces. The + * handle is therefore updated on the first acquire from a given thread + * regardless of where the acquisition request originated. + */ + acpi_gbl_global_lock_handle++; + if (acpi_gbl_global_lock_handle == 0) { + acpi_gbl_global_lock_handle = 1; + } + + /* + * Make sure that a global lock actually exists. If not, just + * treat the lock as a standard mutex. + */ + if (!acpi_gbl_global_lock_present) { + acpi_gbl_global_lock_acquired = TRUE; + return_ACPI_STATUS(AE_OK); + } + + flags = acpi_os_acquire_lock(acpi_gbl_global_lock_pending_lock); + + do { + + /* Attempt to acquire the actual hardware lock */ + + ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_FACS, acquired); + if (acquired) { + acpi_gbl_global_lock_acquired = TRUE; + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Acquired hardware Global Lock\n")); + break; + } + + /* + * Did not get the lock. The pending bit was set above, and + * we must now wait until we receive the global lock + * released interrupt. + */ + acpi_gbl_global_lock_pending = TRUE; + acpi_os_release_lock(acpi_gbl_global_lock_pending_lock, flags); + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Waiting for hardware Global Lock\n")); + + /* + * Wait for handshake with the global lock interrupt handler. + * This interface releases the interpreter if we must wait. + */ + status = + acpi_ex_system_wait_semaphore + (acpi_gbl_global_lock_semaphore, ACPI_WAIT_FOREVER); + + flags = acpi_os_acquire_lock(acpi_gbl_global_lock_pending_lock); + + } while (ACPI_SUCCESS(status)); + + acpi_gbl_global_lock_pending = FALSE; + acpi_os_release_lock(acpi_gbl_global_lock_pending_lock, flags); + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ev_release_global_lock + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Releases ownership of the Global Lock. + * + ******************************************************************************/ + +acpi_status acpi_ev_release_global_lock(void) +{ + u8 pending = FALSE; + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(ev_release_global_lock); + + /* Lock must be already acquired */ + + if (!acpi_gbl_global_lock_acquired) { + ACPI_WARNING((AE_INFO, + "Cannot release the ACPI Global Lock, it has not been acquired")); + return_ACPI_STATUS(AE_NOT_ACQUIRED); + } + + if (acpi_gbl_global_lock_present) { + + /* Allow any thread to release the lock */ + + ACPI_RELEASE_GLOBAL_LOCK(acpi_gbl_FACS, pending); + + /* + * If the pending bit was set, we must write GBL_RLS to the control + * register + */ + if (pending) { + status = + acpi_write_bit_register + (ACPI_BITREG_GLOBAL_LOCK_RELEASE, + ACPI_ENABLE_EVENT); + } + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Released hardware Global Lock\n")); + } + + acpi_gbl_global_lock_acquired = FALSE; + + /* Release the local GL mutex */ + + acpi_os_release_mutex(acpi_gbl_global_lock_mutex->mutex.os_mutex); + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c index 7dc80946f7b..d0b33184442 100644 --- a/drivers/acpi/acpica/evmisc.c +++ b/drivers/acpi/acpica/evmisc.c @@ -45,7 +45,6 @@ #include "accommon.h" #include "acevents.h" #include "acnamesp.h" -#include "acinterp.h" #define _COMPONENT ACPI_EVENTS ACPI_MODULE_NAME("evmisc") @@ -53,10 +52,6 @@ ACPI_MODULE_NAME("evmisc") /* Local prototypes */ static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context); -static u32 acpi_ev_global_lock_handler(void *context); - -static acpi_status acpi_ev_remove_global_lock_handler(void); - /******************************************************************************* * * FUNCTION: acpi_ev_is_notify_object @@ -275,304 +270,6 @@ static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context) acpi_ut_delete_generic_state(notify_info); } -/******************************************************************************* - * - * FUNCTION: acpi_ev_global_lock_handler - * - * PARAMETERS: Context - From thread interface, not used - * - * RETURN: ACPI_INTERRUPT_HANDLED - * - * DESCRIPTION: Invoked directly from the SCI handler when a global lock - * release interrupt occurs. If there's a thread waiting for - * the global lock, signal it. - * - * NOTE: Assumes that the semaphore can be signaled from interrupt level. If - * this is not possible for some reason, a separate thread will have to be - * scheduled to do this. - * - ******************************************************************************/ -static u8 acpi_ev_global_lock_pending; - -static u32 acpi_ev_global_lock_handler(void *context) -{ - acpi_status status; - acpi_cpu_flags flags; - - flags = acpi_os_acquire_lock(acpi_ev_global_lock_pending_lock); - - if (!acpi_ev_global_lock_pending) { - goto out; - } - - /* Send a unit to the semaphore */ - - status = acpi_os_signal_semaphore(acpi_gbl_global_lock_semaphore, 1); - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, "Could not signal Global Lock semaphore")); - } - - acpi_ev_global_lock_pending = FALSE; - - out: - acpi_os_release_lock(acpi_ev_global_lock_pending_lock, flags); - - return (ACPI_INTERRUPT_HANDLED); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_init_global_lock_handler - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Install a handler for the global lock release event - * - ******************************************************************************/ - -acpi_status acpi_ev_init_global_lock_handler(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_init_global_lock_handler); - - /* Attempt installation of the global lock handler */ - - status = acpi_install_fixed_event_handler(ACPI_EVENT_GLOBAL, - acpi_ev_global_lock_handler, - NULL); - - /* - * If the global lock does not exist on this platform, the attempt to - * enable GBL_STATUS will fail (the GBL_ENABLE bit will not stick). - * Map to AE_OK, but mark global lock as not present. Any attempt to - * actually use the global lock will be flagged with an error. - */ - if (status == AE_NO_HARDWARE_RESPONSE) { - ACPI_ERROR((AE_INFO, - "No response from Global Lock hardware, disabling lock")); - - acpi_gbl_global_lock_present = FALSE; - return_ACPI_STATUS(AE_OK); - } - - acpi_gbl_global_lock_present = TRUE; - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_remove_global_lock_handler - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Remove the handler for the Global Lock - * - ******************************************************************************/ - -static acpi_status acpi_ev_remove_global_lock_handler(void) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_remove_global_lock_handler); - - acpi_gbl_global_lock_present = FALSE; - status = acpi_remove_fixed_event_handler(ACPI_EVENT_GLOBAL, - acpi_ev_global_lock_handler); - - return_ACPI_STATUS(status); -} - -/****************************************************************************** - * - * FUNCTION: acpi_ev_acquire_global_lock - * - * PARAMETERS: Timeout - Max time to wait for the lock, in millisec. - * - * RETURN: Status - * - * DESCRIPTION: Attempt to gain ownership of the Global Lock. - * - * MUTEX: Interpreter must be locked - * - * Note: The original implementation allowed multiple threads to "acquire" the - * Global Lock, and the OS would hold the lock until the last thread had - * released it. However, this could potentially starve the BIOS out of the - * lock, especially in the case where there is a tight handshake between the - * Embedded Controller driver and the BIOS. Therefore, this implementation - * allows only one thread to acquire the HW Global Lock at a time, and makes - * the global lock appear as a standard mutex on the OS side. - * - *****************************************************************************/ -static acpi_thread_id acpi_ev_global_lock_thread_id; -static int acpi_ev_global_lock_acquired; - -acpi_status acpi_ev_acquire_global_lock(u16 timeout) -{ - acpi_cpu_flags flags; - acpi_status status = AE_OK; - u8 acquired = FALSE; - - ACPI_FUNCTION_TRACE(ev_acquire_global_lock); - - /* - * Only one thread can acquire the GL at a time, the global_lock_mutex - * enforces this. This interface releases the interpreter if we must wait. - */ - status = acpi_ex_system_wait_mutex( - acpi_gbl_global_lock_mutex->mutex.os_mutex, 0); - if (status == AE_TIME) { - if (acpi_ev_global_lock_thread_id == acpi_os_get_thread_id()) { - acpi_ev_global_lock_acquired++; - return AE_OK; - } - } - - if (ACPI_FAILURE(status)) { - status = acpi_ex_system_wait_mutex( - acpi_gbl_global_lock_mutex->mutex.os_mutex, - timeout); - } - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - acpi_ev_global_lock_thread_id = acpi_os_get_thread_id(); - acpi_ev_global_lock_acquired++; - - /* - * Update the global lock handle and check for wraparound. The handle is - * only used for the external global lock interfaces, but it is updated - * here to properly handle the case where a single thread may acquire the - * lock via both the AML and the acpi_acquire_global_lock interfaces. The - * handle is therefore updated on the first acquire from a given thread - * regardless of where the acquisition request originated. - */ - acpi_gbl_global_lock_handle++; - if (acpi_gbl_global_lock_handle == 0) { - acpi_gbl_global_lock_handle = 1; - } - - /* - * Make sure that a global lock actually exists. If not, just treat the - * lock as a standard mutex. - */ - if (!acpi_gbl_global_lock_present) { - acpi_gbl_global_lock_acquired = TRUE; - return_ACPI_STATUS(AE_OK); - } - - flags = acpi_os_acquire_lock(acpi_ev_global_lock_pending_lock); - - do { - - /* Attempt to acquire the actual hardware lock */ - - ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_FACS, acquired); - if (acquired) { - acpi_gbl_global_lock_acquired = TRUE; - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Acquired hardware Global Lock\n")); - break; - } - - acpi_ev_global_lock_pending = TRUE; - - acpi_os_release_lock(acpi_ev_global_lock_pending_lock, flags); - - /* - * Did not get the lock. The pending bit was set above, and we - * must wait until we get the global lock released interrupt. - */ - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Waiting for hardware Global Lock\n")); - - /* - * Wait for handshake with the global lock interrupt handler. - * This interface releases the interpreter if we must wait. - */ - status = acpi_ex_system_wait_semaphore( - acpi_gbl_global_lock_semaphore, - ACPI_WAIT_FOREVER); - - flags = acpi_os_acquire_lock(acpi_ev_global_lock_pending_lock); - - } while (ACPI_SUCCESS(status)); - - acpi_ev_global_lock_pending = FALSE; - - acpi_os_release_lock(acpi_ev_global_lock_pending_lock, flags); - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_release_global_lock - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Releases ownership of the Global Lock. - * - ******************************************************************************/ - -acpi_status acpi_ev_release_global_lock(void) -{ - u8 pending = FALSE; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(ev_release_global_lock); - - /* Lock must be already acquired */ - - if (!acpi_gbl_global_lock_acquired) { - ACPI_WARNING((AE_INFO, - "Cannot release the ACPI Global Lock, it has not been acquired")); - return_ACPI_STATUS(AE_NOT_ACQUIRED); - } - - acpi_ev_global_lock_acquired--; - if (acpi_ev_global_lock_acquired > 0) { - return AE_OK; - } - - if (acpi_gbl_global_lock_present) { - - /* Allow any thread to release the lock */ - - ACPI_RELEASE_GLOBAL_LOCK(acpi_gbl_FACS, pending); - - /* - * If the pending bit was set, we must write GBL_RLS to the control - * register - */ - if (pending) { - status = - acpi_write_bit_register - (ACPI_BITREG_GLOBAL_LOCK_RELEASE, - ACPI_ENABLE_EVENT); - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Released hardware Global Lock\n")); - } - - acpi_gbl_global_lock_acquired = FALSE; - - /* Release the local GL mutex */ - acpi_ev_global_lock_thread_id = 0; - acpi_ev_global_lock_acquired = 0; - acpi_os_release_mutex(acpi_gbl_global_lock_mutex->mutex.os_mutex); - return_ACPI_STATUS(status); -} - /****************************************************************************** * * FUNCTION: acpi_ev_terminate diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c index bea7223d7a7..f0edf5c43c0 100644 --- a/drivers/acpi/acpica/evregion.c +++ b/drivers/acpi/acpica/evregion.c @@ -55,6 +55,8 @@ static u8 acpi_ev_has_default_handler(struct acpi_namespace_node *node, acpi_adr_space_type space_id); +static void acpi_ev_orphan_ec_reg_method(void); + static acpi_status acpi_ev_reg_run(acpi_handle obj_handle, u32 level, void *context, void **return_value); @@ -561,7 +563,9 @@ acpi_ev_detach_region(union acpi_operand_object *region_obj, /* Now stop region accesses by executing the _REG method */ - status = acpi_ev_execute_reg_method(region_obj, 0); + status = + acpi_ev_execute_reg_method(region_obj, + ACPI_REG_DISCONNECT); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "from region _REG, [%s]", @@ -1062,6 +1066,12 @@ acpi_ev_execute_reg_methods(struct acpi_namespace_node *node, ACPI_NS_WALK_UNLOCK, acpi_ev_reg_run, NULL, &space_id, NULL); + /* Special case for EC: handle "orphan" _REG methods with no region */ + + if (space_id == ACPI_ADR_SPACE_EC) { + acpi_ev_orphan_ec_reg_method(); + } + return_ACPI_STATUS(status); } @@ -1120,6 +1130,113 @@ acpi_ev_reg_run(acpi_handle obj_handle, return (AE_OK); } - status = acpi_ev_execute_reg_method(obj_desc, 1); + status = acpi_ev_execute_reg_method(obj_desc, ACPI_REG_CONNECT); return (status); } + +/******************************************************************************* + * + * FUNCTION: acpi_ev_orphan_ec_reg_method + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Execute an "orphan" _REG method that appears under the EC + * device. This is a _REG method that has no corresponding region + * within the EC device scope. The orphan _REG method appears to + * have been enabled by the description of the ECDT in the ACPI + * specification: "The availability of the region space can be + * detected by providing a _REG method object underneath the + * Embedded Controller device." + * + * To quickly access the EC device, we use the EC_ID that appears + * within the ECDT. Otherwise, we would need to perform a time- + * consuming namespace walk, executing _HID methods to find the + * EC device. + * + ******************************************************************************/ + +static void acpi_ev_orphan_ec_reg_method(void) +{ + struct acpi_table_ecdt *table; + acpi_status status; + struct acpi_object_list args; + union acpi_object objects[2]; + struct acpi_namespace_node *ec_device_node; + struct acpi_namespace_node *reg_method; + struct acpi_namespace_node *next_node; + + ACPI_FUNCTION_TRACE(ev_orphan_ec_reg_method); + + /* Get the ECDT (if present in system) */ + + status = acpi_get_table(ACPI_SIG_ECDT, 0, + ACPI_CAST_INDIRECT_PTR(struct acpi_table_header, + &table)); + if (ACPI_FAILURE(status)) { + return_VOID; + } + + /* We need a valid EC_ID string */ + + if (!(*table->id)) { + return_VOID; + } + + /* Namespace is currently locked, must release */ + + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + + /* Get a handle to the EC device referenced in the ECDT */ + + status = acpi_get_handle(NULL, + ACPI_CAST_PTR(char, table->id), + ACPI_CAST_PTR(acpi_handle, &ec_device_node)); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* Get a handle to a _REG method immediately under the EC device */ + + status = acpi_get_handle(ec_device_node, + METHOD_NAME__REG, ACPI_CAST_PTR(acpi_handle, + ®_method)); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* + * Execute the _REG method only if there is no Operation Region in + * this scope with the Embedded Controller space ID. Otherwise, it + * will already have been executed. Note, this allows for Regions + * with other space IDs to be present; but the code below will then + * execute the _REG method with the EC space ID argument. + */ + next_node = acpi_ns_get_next_node(ec_device_node, NULL); + while (next_node) { + if ((next_node->type == ACPI_TYPE_REGION) && + (next_node->object) && + (next_node->object->region.space_id == ACPI_ADR_SPACE_EC)) { + goto exit; /* Do not execute _REG */ + } + next_node = acpi_ns_get_next_node(ec_device_node, next_node); + } + + /* Evaluate the _REG(EC,Connect) method */ + + args.count = 2; + args.pointer = objects; + objects[0].type = ACPI_TYPE_INTEGER; + objects[0].integer.value = ACPI_ADR_SPACE_EC; + objects[1].type = ACPI_TYPE_INTEGER; + objects[1].integer.value = ACPI_REG_CONNECT; + + status = acpi_evaluate_object(reg_method, NULL, &args, NULL); + + exit: + /* We ignore all errors from above, don't care */ + + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + return_VOID; +} diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c index 9659cee6093..55a5d35ef34 100644 --- a/drivers/acpi/acpica/evrgnini.c +++ b/drivers/acpi/acpica/evrgnini.c @@ -637,7 +637,7 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj, status = acpi_ev_execute_reg_method - (region_obj, 1); + (region_obj, ACPI_REG_CONNECT); if (acpi_ns_locked) { status = diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c index c85c8c45599..00cd95692a9 100644 --- a/drivers/acpi/acpica/evxfregn.c +++ b/drivers/acpi/acpica/evxfregn.c @@ -130,20 +130,21 @@ acpi_install_address_space_handler(acpi_handle device, case ACPI_ADR_SPACE_PCI_CONFIG: case ACPI_ADR_SPACE_DATA_TABLE: - if (acpi_gbl_reg_methods_executed) { + if (!acpi_gbl_reg_methods_executed) { - /* Run all _REG methods for this address space */ - - status = acpi_ev_execute_reg_methods(node, space_id); + /* We will defer execution of the _REG methods for this space */ + goto unlock_and_exit; } break; default: - - status = acpi_ev_execute_reg_methods(node, space_id); break; } + /* Run all _REG methods for this address space */ + + status = acpi_ev_execute_reg_methods(node, space_id); + unlock_and_exit: (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); return_ACPI_STATUS(status); diff --git a/drivers/acpi/acpica/excreate.c b/drivers/acpi/acpica/excreate.c index e7b372d1766..110711afada 100644 --- a/drivers/acpi/acpica/excreate.c +++ b/drivers/acpi/acpica/excreate.c @@ -305,7 +305,8 @@ acpi_ex_create_region(u8 * aml_start, * range */ if ((region_space >= ACPI_NUM_PREDEFINED_REGIONS) && - (region_space < ACPI_USER_REGION_BEGIN)) { + (region_space < ACPI_USER_REGION_BEGIN) && + (region_space != ACPI_ADR_SPACE_DATA_TABLE)) { ACPI_ERROR((AE_INFO, "Invalid AddressSpace type 0x%X", region_space)); return_ACPI_STATUS(AE_AML_INVALID_SPACE_ID); diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c index 1d76ac85b5e..ac7b854b0bd 100644 --- a/drivers/acpi/acpica/nsrepair.c +++ b/drivers/acpi/acpica/nsrepair.c @@ -74,7 +74,6 @@ ACPI_MODULE_NAME("nsrepair") * * Additional possible repairs: * - * Optional/unnecessary NULL package elements removed * Required package elements that are NULL replaced by Integer/String/Buffer * Incorrect standalone package wrapped with required outer package * @@ -623,16 +622,12 @@ acpi_ns_remove_null_elements(struct acpi_predefined_data *data, ACPI_FUNCTION_NAME(ns_remove_null_elements); /* - * PTYPE1 packages contain no subpackages. - * PTYPE2 packages contain a variable number of sub-packages. We can - * safely remove all NULL elements from the PTYPE2 packages. + * We can safely remove all NULL elements from these package types: + * PTYPE1_VAR packages contain a variable number of simple data types. + * PTYPE2 packages contain a variable number of sub-packages. */ switch (package_type) { - case ACPI_PTYPE1_FIXED: case ACPI_PTYPE1_VAR: - case ACPI_PTYPE1_OPTION: - return; - case ACPI_PTYPE2: case ACPI_PTYPE2_COUNT: case ACPI_PTYPE2_PKG_COUNT: @@ -642,6 +637,8 @@ acpi_ns_remove_null_elements(struct acpi_predefined_data *data, break; default: + case ACPI_PTYPE1_FIXED: + case ACPI_PTYPE1_OPTION: return; } diff --git a/drivers/acpi/acpica/utdecode.c b/drivers/acpi/acpica/utdecode.c index 136a814cec6..97cb36f85ce 100644 --- a/drivers/acpi/acpica/utdecode.c +++ b/drivers/acpi/acpica/utdecode.c @@ -170,8 +170,7 @@ const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = { "SMBus", "SystemCMOS", "PCIBARTarget", - "IPMI", - "DataTable" + "IPMI" }; char *acpi_ut_get_region_name(u8 space_id) @@ -179,6 +178,8 @@ char *acpi_ut_get_region_name(u8 space_id) if (space_id >= ACPI_USER_REGION_BEGIN) { return ("UserDefinedRegion"); + } else if (space_id == ACPI_ADR_SPACE_DATA_TABLE) { + return ("DataTable"); } else if (space_id == ACPI_ADR_SPACE_FIXED_HARDWARE) { return ("FunctionalFixedHW"); } else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS) { diff --git a/drivers/acpi/acpica/utmutex.c b/drivers/acpi/acpica/utmutex.c index a946c689f03..7d797e2baec 100644 --- a/drivers/acpi/acpica/utmutex.c +++ b/drivers/acpi/acpica/utmutex.c @@ -83,9 +83,15 @@ acpi_status acpi_ut_mutex_initialize(void) /* Create the spinlocks for use at interrupt level */ - spin_lock_init(acpi_gbl_gpe_lock); - spin_lock_init(acpi_gbl_hardware_lock); - spin_lock_init(acpi_ev_global_lock_pending_lock); + status = acpi_os_create_lock (&acpi_gbl_gpe_lock); + if (ACPI_FAILURE (status)) { + return_ACPI_STATUS (status); + } + + status = acpi_os_create_lock (&acpi_gbl_hardware_lock); + if (ACPI_FAILURE (status)) { + return_ACPI_STATUS (status); + } /* Mutex for _OSI support */ status = acpi_os_create_mutex(&acpi_gbl_osi_mutex); diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 9749980ca6c..d1e06c182cd 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -227,7 +227,7 @@ static int __acpi_bus_set_power(struct acpi_device *device, int state) acpi_status status = AE_OK; char object_name[5] = { '_', 'P', 'S', '0' + state, '\0' }; - if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3)) + if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD)) return -EINVAL; /* Make sure this is a valid target state */ diff --git a/drivers/acpi/custom_method.c b/drivers/acpi/custom_method.c new file mode 100644 index 00000000000..5d42c2414ae --- /dev/null +++ b/drivers/acpi/custom_method.c @@ -0,0 +1,100 @@ +/* + * debugfs.c - ACPI debugfs interface to userspace. + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/uaccess.h> +#include <linux/debugfs.h> +#include <acpi/acpi_drivers.h> + +#include "internal.h" + +#define _COMPONENT ACPI_SYSTEM_COMPONENT +ACPI_MODULE_NAME("custom_method"); +MODULE_LICENSE("GPL"); + +static struct dentry *cm_dentry; + +/* /sys/kernel/debug/acpi/custom_method */ + +static ssize_t cm_write(struct file *file, const char __user * user_buf, + size_t count, loff_t *ppos) +{ + static char *buf; + static u32 max_size; + static u32 uncopied_bytes; + + struct acpi_table_header table; + acpi_status status; + + if (!(*ppos)) { + /* parse the table header to get the table length */ + if (count <= sizeof(struct acpi_table_header)) + return -EINVAL; + if (copy_from_user(&table, user_buf, + sizeof(struct acpi_table_header))) + return -EFAULT; + uncopied_bytes = max_size = table.length; + buf = kzalloc(max_size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + } + + if (buf == NULL) + return -EINVAL; + + if ((*ppos > max_size) || + (*ppos + count > max_size) || + (*ppos + count < count) || + (count > uncopied_bytes)) + return -EINVAL; + + if (copy_from_user(buf + (*ppos), user_buf, count)) { + kfree(buf); + buf = NULL; + return -EFAULT; + } + + uncopied_bytes -= count; + *ppos += count; + + if (!uncopied_bytes) { + status = acpi_install_method(buf); + kfree(buf); + buf = NULL; + if (ACPI_FAILURE(status)) + return -EINVAL; + add_taint(TAINT_OVERRIDDEN_ACPI_TABLE); + } + + return count; +} + +static const struct file_operations cm_fops = { + .write = cm_write, + .llseek = default_llseek, +}; + +static int __init acpi_custom_method_init(void) +{ + if (acpi_debugfs_dir == NULL) + return -ENOENT; + + cm_dentry = debugfs_create_file("custom_method", S_IWUSR, + acpi_debugfs_dir, NULL, &cm_fops); + if (cm_dentry == NULL) + return -ENODEV; + + return 0; +} + +static void __exit acpi_custom_method_exit(void) +{ + if (cm_dentry) + debugfs_remove(cm_dentry); + } + +module_init(acpi_custom_method_init); +module_exit(acpi_custom_method_exit); diff --git a/drivers/acpi/debugfs.c b/drivers/acpi/debugfs.c index 384f7abcff7..182a9fc3635 100644 --- a/drivers/acpi/debugfs.c +++ b/drivers/acpi/debugfs.c @@ -3,100 +3,16 @@ */ #include <linux/init.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/uaccess.h> #include <linux/debugfs.h> #include <acpi/acpi_drivers.h> #define _COMPONENT ACPI_SYSTEM_COMPONENT ACPI_MODULE_NAME("debugfs"); +struct dentry *acpi_debugfs_dir; +EXPORT_SYMBOL_GPL(acpi_debugfs_dir); -/* /sys/modules/acpi/parameters/aml_debug_output */ - -module_param_named(aml_debug_output, acpi_gbl_enable_aml_debug_object, - bool, 0644); -MODULE_PARM_DESC(aml_debug_output, - "To enable/disable the ACPI Debug Object output."); - -/* /sys/kernel/debug/acpi/custom_method */ - -static ssize_t cm_write(struct file *file, const char __user * user_buf, - size_t count, loff_t *ppos) +void __init acpi_debugfs_init(void) { - static char *buf; - static u32 max_size; - static u32 uncopied_bytes; - - struct acpi_table_header table; - acpi_status status; - - if (!(*ppos)) { - /* parse the table header to get the table length */ - if (count <= sizeof(struct acpi_table_header)) - return -EINVAL; - if (copy_from_user(&table, user_buf, - sizeof(struct acpi_table_header))) - return -EFAULT; - uncopied_bytes = max_size = table.length; - buf = kzalloc(max_size, GFP_KERNEL); - if (!buf) - return -ENOMEM; - } - - if (buf == NULL) - return -EINVAL; - - if ((*ppos > max_size) || - (*ppos + count > max_size) || - (*ppos + count < count) || - (count > uncopied_bytes)) - return -EINVAL; - - if (copy_from_user(buf + (*ppos), user_buf, count)) { - kfree(buf); - buf = NULL; - return -EFAULT; - } - - uncopied_bytes -= count; - *ppos += count; - - if (!uncopied_bytes) { - status = acpi_install_method(buf); - kfree(buf); - buf = NULL; - if (ACPI_FAILURE(status)) - return -EINVAL; - add_taint(TAINT_OVERRIDDEN_ACPI_TABLE); - } - - return count; -} - -static const struct file_operations cm_fops = { - .write = cm_write, - .llseek = default_llseek, -}; - -int __init acpi_debugfs_init(void) -{ - struct dentry *acpi_dir, *cm_dentry; - - acpi_dir = debugfs_create_dir("acpi", NULL); - if (!acpi_dir) - goto err; - - cm_dentry = debugfs_create_file("custom_method", S_IWUSR, - acpi_dir, NULL, &cm_fops); - if (!cm_dentry) - goto err; - - return 0; - -err: - if (acpi_dir) - debugfs_remove(acpi_dir); - return -EINVAL; + acpi_debugfs_dir = debugfs_create_dir("acpi", NULL); } diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index fa848c4116a..b19a18dd994 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -69,7 +69,6 @@ enum ec_command { #define ACPI_EC_DELAY 500 /* Wait 500ms max. during EC ops */ #define ACPI_EC_UDELAY_GLK 1000 /* Wait 1ms max. to get global lock */ -#define ACPI_EC_CDELAY 10 /* Wait 10us before polling EC */ #define ACPI_EC_MSI_UDELAY 550 /* Wait 550us for MSI EC */ #define ACPI_EC_STORM_THRESHOLD 8 /* number of false interrupts @@ -433,8 +432,7 @@ EXPORT_SYMBOL(ec_write); int ec_transaction(u8 command, const u8 * wdata, unsigned wdata_len, - u8 * rdata, unsigned rdata_len, - int force_poll) + u8 * rdata, unsigned rdata_len) { struct transaction t = {.command = command, .wdata = wdata, .rdata = rdata, @@ -592,8 +590,6 @@ static void acpi_ec_gpe_query(void *ec_cxt) mutex_unlock(&ec->lock); } -static void acpi_ec_gpe_query(void *ec_cxt); - static int ec_check_sci(struct acpi_ec *ec, u8 state) { if (state & ACPI_EC_FLAG_SCI) { @@ -808,8 +804,6 @@ static int acpi_ec_add(struct acpi_device *device) return -EINVAL; } - ec->handle = device->handle; - /* Find and register all query methods */ acpi_walk_namespace(ACPI_TYPE_METHOD, ec->handle, 1, acpi_ec_register_query_methods, NULL, ec, NULL); @@ -938,8 +932,19 @@ static struct dmi_system_id __initdata ec_dmi_table[] = { ec_flag_msi, "MSI hardware", { DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-STAR")}, NULL}, { + ec_flag_msi, "Quanta hardware", { + DMI_MATCH(DMI_SYS_VENDOR, "Quanta"), + DMI_MATCH(DMI_PRODUCT_NAME, "TW8/SW8/DW8"),}, NULL}, + { + ec_flag_msi, "Quanta hardware", { + DMI_MATCH(DMI_SYS_VENDOR, "Quanta"), + DMI_MATCH(DMI_PRODUCT_NAME, "TW9/SW9"),}, NULL}, + { ec_validate_ecdt, "ASUS hardware", { DMI_MATCH(DMI_BIOS_VENDOR, "ASUS") }, NULL}, + { + ec_validate_ecdt, "ASUS hardware", { + DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer Inc.") }, NULL}, {}, }; diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 4bfb759deb1..ca75b9ce048 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -28,9 +28,10 @@ int acpi_scan_init(void); int acpi_sysfs_init(void); #ifdef CONFIG_DEBUG_FS +extern struct dentry *acpi_debugfs_dir; int acpi_debugfs_init(void); #else -static inline int acpi_debugfs_init(void) { return 0; } +static inline void acpi_debugfs_init(void) { return; } #endif /* -------------------------------------------------------------------------- diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 45ad4ffef53..52ca9649d76 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -902,14 +902,6 @@ void acpi_os_wait_events_complete(void *context) EXPORT_SYMBOL(acpi_os_wait_events_complete); -/* - * Deallocate the memory for a spinlock. - */ -void acpi_os_delete_lock(acpi_spinlock handle) -{ - return; -} - acpi_status acpi_os_create_semaphore(u32 max_units, u32 initial_units, acpi_handle * handle) { @@ -1341,6 +1333,31 @@ int acpi_resources_are_enforced(void) EXPORT_SYMBOL(acpi_resources_are_enforced); /* + * Create and initialize a spinlock. + */ +acpi_status +acpi_os_create_lock(acpi_spinlock *out_handle) +{ + spinlock_t *lock; + + lock = ACPI_ALLOCATE(sizeof(spinlock_t)); + if (!lock) + return AE_NO_MEMORY; + spin_lock_init(lock); + *out_handle = lock; + + return AE_OK; +} + +/* + * Deallocate the memory for a spinlock. + */ +void acpi_os_delete_lock(acpi_spinlock handle) +{ + ACPI_FREE(handle); +} + +/* * Acquire a spinlock. * * handle is a pointer to the spinlock_t. diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 25bf17da69f..02d2a4c9084 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -37,7 +37,6 @@ static struct dmi_system_id __initdata processor_idle_dmi_table[] = { {}, }; -#ifdef CONFIG_SMP static int map_lapic_id(struct acpi_subtable_header *entry, u32 acpi_id, int *apic_id) { @@ -165,7 +164,9 @@ exit: int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id) { +#ifdef CONFIG_SMP int i; +#endif int apic_id = -1; apic_id = map_mat_entry(handle, type, acpi_id); @@ -174,14 +175,19 @@ int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id) if (apic_id == -1) return apic_id; +#ifdef CONFIG_SMP for_each_possible_cpu(i) { if (cpu_physical_id(i) == apic_id) return i; } +#else + /* In UP kernel, only processor 0 is valid */ + if (apic_id == 0) + return apic_id; +#endif return -1; } EXPORT_SYMBOL_GPL(acpi_get_cpuid); -#endif static bool __init processor_physically_present(acpi_handle handle) { @@ -217,7 +223,7 @@ static bool __init processor_physically_present(acpi_handle handle) type = (acpi_type == ACPI_TYPE_DEVICE) ? 1 : 0; cpuid = acpi_get_cpuid(handle, type, acpi_id); - if ((cpuid == -1) && (num_possible_cpus() > 1)) + if (cpuid == -1) return false; return true; diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index d615b7d69bc..431ab11c8c1 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -161,7 +161,7 @@ static void lapic_timer_check_state(int state, struct acpi_processor *pr, if (cpu_has(&cpu_data(pr->id), X86_FEATURE_ARAT)) return; - if (c1e_detected) + if (amd_e400_c1e_detected) type = ACPI_STATE_C1; /* diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c index 61891e75583..77255f250db 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -220,6 +220,14 @@ module_param_call(trace_state, param_set_trace_state, param_get_trace_state, NULL, 0644); #endif /* CONFIG_ACPI_DEBUG */ + +/* /sys/modules/acpi/parameters/aml_debug_output */ + +module_param_named(aml_debug_output, acpi_gbl_enable_aml_debug_object, + bool, 0644); +MODULE_PARM_DESC(aml_debug_output, + "To enable/disable the ACPI Debug Object output."); + /* /sys/module/acpi/parameters/acpica_version */ static int param_get_acpica_version(char *buffer, struct kernel_param *kp) { diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index db8f88586c8..98de8f41867 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -1038,6 +1038,7 @@ static void floppy_disable_hlt(void) { unsigned long flags; + WARN_ONCE(1, "floppy_disable_hlt() scheduled for removal in 2012"); spin_lock_irqsave(&floppy_hlt_lock, flags); if (!hlt_disabled) { hlt_disabled = 1; diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c index f508690eb95..c47f3d09c1e 100644 --- a/drivers/cpuidle/governors/menu.c +++ b/drivers/cpuidle/governors/menu.c @@ -237,6 +237,7 @@ static int menu_select(struct cpuidle_device *dev) unsigned int power_usage = -1; int i; int multiplier; + struct timespec t; if (data->needs_update) { menu_update(dev); @@ -251,8 +252,9 @@ static int menu_select(struct cpuidle_device *dev) return 0; /* determine the expected residency time, round up */ + t = ktime_to_timespec(tick_nohz_get_sleep_length()); data->expected_us = - DIV_ROUND_UP((u32)ktime_to_ns(tick_nohz_get_sleep_length()), 1000); + t.tv_sec * USEC_PER_SEC + t.tv_nsec / NSEC_PER_USEC; data->bucket = which_bucket(data->expected_us); diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 592397629dd..4a7f6314345 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -89,24 +89,28 @@ config GPIO_IT8761E config GPIO_EXYNOS4 bool "Samsung Exynos4 GPIO library support" default y if CPU_EXYNOS4210 + depends on ARM help Say yes here to support Samsung Exynos4 series SoCs GPIO library config GPIO_PLAT_SAMSUNG bool "Samsung SoCs GPIO library support" default y if SAMSUNG_GPIOLIB_4BIT + depends on ARM help Say yes here to support Samsung SoCs GPIO library config GPIO_S5PC100 bool "Samsung S5PC100 GPIO library support" default y if CPU_S5PC100 + depends on ARM help Say yes here to support Samsung S5PC100 SoCs GPIO library config GPIO_S5PV210 bool "Samsung S5PV210/S5PC110 GPIO library support" default y if CPU_S5PV210 + depends on ARM help Say yes here to support Samsung S5PV210/S5PC110 SoCs GPIO library diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c index 76a5af00a26..2067288f61f 100644 --- a/drivers/md/dm-io.c +++ b/drivers/md/dm-io.c @@ -19,6 +19,8 @@ #define DM_MSG_PREFIX "io" #define DM_IO_MAX_REGIONS BITS_PER_LONG +#define MIN_IOS 16 +#define MIN_BIOS 16 struct dm_io_client { mempool_t *pool; @@ -41,33 +43,21 @@ struct io { static struct kmem_cache *_dm_io_cache; /* - * io contexts are only dynamically allocated for asynchronous - * io. Since async io is likely to be the majority of io we'll - * have the same number of io contexts as bios! (FIXME: must reduce this). - */ - -static unsigned int pages_to_ios(unsigned int pages) -{ - return 4 * pages; /* too many ? */ -} - -/* * Create a client with mempool and bioset. */ -struct dm_io_client *dm_io_client_create(unsigned num_pages) +struct dm_io_client *dm_io_client_create(void) { - unsigned ios = pages_to_ios(num_pages); struct dm_io_client *client; client = kmalloc(sizeof(*client), GFP_KERNEL); if (!client) return ERR_PTR(-ENOMEM); - client->pool = mempool_create_slab_pool(ios, _dm_io_cache); + client->pool = mempool_create_slab_pool(MIN_IOS, _dm_io_cache); if (!client->pool) goto bad; - client->bios = bioset_create(16, 0); + client->bios = bioset_create(MIN_BIOS, 0); if (!client->bios) goto bad; @@ -81,13 +71,6 @@ struct dm_io_client *dm_io_client_create(unsigned num_pages) } EXPORT_SYMBOL(dm_io_client_create); -int dm_io_client_resize(unsigned num_pages, struct dm_io_client *client) -{ - return mempool_resize(client->pool, pages_to_ios(num_pages), - GFP_KERNEL); -} -EXPORT_SYMBOL(dm_io_client_resize); - void dm_io_client_destroy(struct dm_io_client *client) { mempool_destroy(client->pool); diff --git a/drivers/md/dm-kcopyd.c b/drivers/md/dm-kcopyd.c index 1bb73a13ca4..819e37eaaeb 100644 --- a/drivers/md/dm-kcopyd.c +++ b/drivers/md/dm-kcopyd.c @@ -27,15 +27,19 @@ #include "dm.h" +#define SUB_JOB_SIZE 128 +#define SPLIT_COUNT 8 +#define MIN_JOBS 8 +#define RESERVE_PAGES (DIV_ROUND_UP(SUB_JOB_SIZE << SECTOR_SHIFT, PAGE_SIZE)) + /*----------------------------------------------------------------- * Each kcopyd client has its own little pool of preallocated * pages for kcopyd io. *---------------------------------------------------------------*/ struct dm_kcopyd_client { - spinlock_t lock; struct page_list *pages; - unsigned int nr_pages; - unsigned int nr_free_pages; + unsigned nr_reserved_pages; + unsigned nr_free_pages; struct dm_io_client *io_client; @@ -67,15 +71,18 @@ static void wake(struct dm_kcopyd_client *kc) queue_work(kc->kcopyd_wq, &kc->kcopyd_work); } -static struct page_list *alloc_pl(void) +/* + * Obtain one page for the use of kcopyd. + */ +static struct page_list *alloc_pl(gfp_t gfp) { struct page_list *pl; - pl = kmalloc(sizeof(*pl), GFP_KERNEL); + pl = kmalloc(sizeof(*pl), gfp); if (!pl) return NULL; - pl->page = alloc_page(GFP_KERNEL); + pl->page = alloc_page(gfp); if (!pl->page) { kfree(pl); return NULL; @@ -90,41 +97,56 @@ static void free_pl(struct page_list *pl) kfree(pl); } -static int kcopyd_get_pages(struct dm_kcopyd_client *kc, - unsigned int nr, struct page_list **pages) +/* + * Add the provided pages to a client's free page list, releasing + * back to the system any beyond the reserved_pages limit. + */ +static void kcopyd_put_pages(struct dm_kcopyd_client *kc, struct page_list *pl) { - struct page_list *pl; - - spin_lock(&kc->lock); - if (kc->nr_free_pages < nr) { - spin_unlock(&kc->lock); - return -ENOMEM; - } - - kc->nr_free_pages -= nr; - for (*pages = pl = kc->pages; --nr; pl = pl->next) - ; + struct page_list *next; - kc->pages = pl->next; - pl->next = NULL; + do { + next = pl->next; - spin_unlock(&kc->lock); + if (kc->nr_free_pages >= kc->nr_reserved_pages) + free_pl(pl); + else { + pl->next = kc->pages; + kc->pages = pl; + kc->nr_free_pages++; + } - return 0; + pl = next; + } while (pl); } -static void kcopyd_put_pages(struct dm_kcopyd_client *kc, struct page_list *pl) +static int kcopyd_get_pages(struct dm_kcopyd_client *kc, + unsigned int nr, struct page_list **pages) { - struct page_list *cursor; + struct page_list *pl; + + *pages = NULL; + + do { + pl = alloc_pl(__GFP_NOWARN | __GFP_NORETRY); + if (unlikely(!pl)) { + /* Use reserved pages */ + pl = kc->pages; + if (unlikely(!pl)) + goto out_of_memory; + kc->pages = pl->next; + kc->nr_free_pages--; + } + pl->next = *pages; + *pages = pl; + } while (--nr); - spin_lock(&kc->lock); - for (cursor = pl; cursor->next; cursor = cursor->next) - kc->nr_free_pages++; + return 0; - kc->nr_free_pages++; - cursor->next = kc->pages; - kc->pages = pl; - spin_unlock(&kc->lock); +out_of_memory: + if (*pages) + kcopyd_put_pages(kc, *pages); + return -ENOMEM; } /* @@ -141,13 +163,16 @@ static void drop_pages(struct page_list *pl) } } -static int client_alloc_pages(struct dm_kcopyd_client *kc, unsigned int nr) +/* + * Allocate and reserve nr_pages for the use of a specific client. + */ +static int client_reserve_pages(struct dm_kcopyd_client *kc, unsigned nr_pages) { - unsigned int i; + unsigned i; struct page_list *pl = NULL, *next; - for (i = 0; i < nr; i++) { - next = alloc_pl(); + for (i = 0; i < nr_pages; i++) { + next = alloc_pl(GFP_KERNEL); if (!next) { if (pl) drop_pages(pl); @@ -157,17 +182,18 @@ static int client_alloc_pages(struct dm_kcopyd_client *kc, unsigned int nr) pl = next; } + kc->nr_reserved_pages += nr_pages; kcopyd_put_pages(kc, pl); - kc->nr_pages += nr; + return 0; } static void client_free_pages(struct dm_kcopyd_client *kc) { - BUG_ON(kc->nr_free_pages != kc->nr_pages); + BUG_ON(kc->nr_free_pages != kc->nr_reserved_pages); drop_pages(kc->pages); kc->pages = NULL; - kc->nr_free_pages = kc->nr_pages = 0; + kc->nr_free_pages = kc->nr_reserved_pages = 0; } /*----------------------------------------------------------------- @@ -216,16 +242,17 @@ struct kcopyd_job { struct mutex lock; atomic_t sub_jobs; sector_t progress; -}; -/* FIXME: this should scale with the number of pages */ -#define MIN_JOBS 512 + struct kcopyd_job *master_job; +}; static struct kmem_cache *_job_cache; int __init dm_kcopyd_init(void) { - _job_cache = KMEM_CACHE(kcopyd_job, 0); + _job_cache = kmem_cache_create("kcopyd_job", + sizeof(struct kcopyd_job) * (SPLIT_COUNT + 1), + __alignof__(struct kcopyd_job), 0, NULL); if (!_job_cache) return -ENOMEM; @@ -299,7 +326,12 @@ static int run_complete_job(struct kcopyd_job *job) if (job->pages) kcopyd_put_pages(kc, job->pages); - mempool_free(job, kc->job_pool); + /* + * If this is the master job, the sub jobs have already + * completed so we can free everything. + */ + if (job->master_job == job) + mempool_free(job, kc->job_pool); fn(read_err, write_err, context); if (atomic_dec_and_test(&kc->nr_jobs)) @@ -460,14 +492,14 @@ static void dispatch_job(struct kcopyd_job *job) wake(kc); } -#define SUB_JOB_SIZE 128 static void segment_complete(int read_err, unsigned long write_err, void *context) { /* FIXME: tidy this function */ sector_t progress = 0; sector_t count = 0; - struct kcopyd_job *job = (struct kcopyd_job *) context; + struct kcopyd_job *sub_job = (struct kcopyd_job *) context; + struct kcopyd_job *job = sub_job->master_job; struct dm_kcopyd_client *kc = job->kc; mutex_lock(&job->lock); @@ -498,8 +530,6 @@ static void segment_complete(int read_err, unsigned long write_err, if (count) { int i; - struct kcopyd_job *sub_job = mempool_alloc(kc->job_pool, - GFP_NOIO); *sub_job = *job; sub_job->source.sector += progress; @@ -511,7 +541,7 @@ static void segment_complete(int read_err, unsigned long write_err, } sub_job->fn = segment_complete; - sub_job->context = job; + sub_job->context = sub_job; dispatch_job(sub_job); } else if (atomic_dec_and_test(&job->sub_jobs)) { @@ -531,19 +561,19 @@ static void segment_complete(int read_err, unsigned long write_err, } /* - * Create some little jobs that will do the move between - * them. + * Create some sub jobs to share the work between them. */ -#define SPLIT_COUNT 8 -static void split_job(struct kcopyd_job *job) +static void split_job(struct kcopyd_job *master_job) { int i; - atomic_inc(&job->kc->nr_jobs); + atomic_inc(&master_job->kc->nr_jobs); - atomic_set(&job->sub_jobs, SPLIT_COUNT); - for (i = 0; i < SPLIT_COUNT; i++) - segment_complete(0, 0u, job); + atomic_set(&master_job->sub_jobs, SPLIT_COUNT); + for (i = 0; i < SPLIT_COUNT; i++) { + master_job[i + 1].master_job = master_job; + segment_complete(0, 0u, &master_job[i + 1]); + } } int dm_kcopyd_copy(struct dm_kcopyd_client *kc, struct dm_io_region *from, @@ -553,7 +583,8 @@ int dm_kcopyd_copy(struct dm_kcopyd_client *kc, struct dm_io_region *from, struct kcopyd_job *job; /* - * Allocate a new job. + * Allocate an array of jobs consisting of one master job + * followed by SPLIT_COUNT sub jobs. */ job = mempool_alloc(kc->job_pool, GFP_NOIO); @@ -577,10 +608,10 @@ int dm_kcopyd_copy(struct dm_kcopyd_client *kc, struct dm_io_region *from, job->fn = fn; job->context = context; + job->master_job = job; - if (job->source.count < SUB_JOB_SIZE) + if (job->source.count <= SUB_JOB_SIZE) dispatch_job(job); - else { mutex_init(&job->lock); job->progress = 0; @@ -606,17 +637,15 @@ int kcopyd_cancel(struct kcopyd_job *job, int block) /*----------------------------------------------------------------- * Client setup *---------------------------------------------------------------*/ -int dm_kcopyd_client_create(unsigned int nr_pages, - struct dm_kcopyd_client **result) +struct dm_kcopyd_client *dm_kcopyd_client_create(void) { int r = -ENOMEM; struct dm_kcopyd_client *kc; kc = kmalloc(sizeof(*kc), GFP_KERNEL); if (!kc) - return -ENOMEM; + return ERR_PTR(-ENOMEM); - spin_lock_init(&kc->lock); spin_lock_init(&kc->job_lock); INIT_LIST_HEAD(&kc->complete_jobs); INIT_LIST_HEAD(&kc->io_jobs); @@ -633,12 +662,12 @@ int dm_kcopyd_client_create(unsigned int nr_pages, goto bad_workqueue; kc->pages = NULL; - kc->nr_pages = kc->nr_free_pages = 0; - r = client_alloc_pages(kc, nr_pages); + kc->nr_reserved_pages = kc->nr_free_pages = 0; + r = client_reserve_pages(kc, RESERVE_PAGES); if (r) goto bad_client_pages; - kc->io_client = dm_io_client_create(nr_pages); + kc->io_client = dm_io_client_create(); if (IS_ERR(kc->io_client)) { r = PTR_ERR(kc->io_client); goto bad_io_client; @@ -647,8 +676,7 @@ int dm_kcopyd_client_create(unsigned int nr_pages, init_waitqueue_head(&kc->destroyq); atomic_set(&kc->nr_jobs, 0); - *result = kc; - return 0; + return kc; bad_io_client: client_free_pages(kc); @@ -659,7 +687,7 @@ bad_workqueue: bad_slab: kfree(kc); - return r; + return ERR_PTR(r); } EXPORT_SYMBOL(dm_kcopyd_client_create); diff --git a/drivers/md/dm-log.c b/drivers/md/dm-log.c index a1f32188967..948e3f4925b 100644 --- a/drivers/md/dm-log.c +++ b/drivers/md/dm-log.c @@ -449,8 +449,7 @@ static int create_log_context(struct dm_dirty_log *log, struct dm_target *ti, lc->io_req.mem.type = DM_IO_VMA; lc->io_req.notify.fn = NULL; - lc->io_req.client = dm_io_client_create(dm_div_up(buf_size, - PAGE_SIZE)); + lc->io_req.client = dm_io_client_create(); if (IS_ERR(lc->io_req.client)) { r = PTR_ERR(lc->io_req.client); DMWARN("couldn't allocate disk io client"); diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index a550a057d99..aa4e570c2cb 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -1290,7 +1290,7 @@ static int do_end_io(struct multipath *m, struct request *clone, if (!error && !clone->errors) return 0; /* I/O complete */ - if (error == -EOPNOTSUPP || error == -EREMOTEIO) + if (error == -EOPNOTSUPP || error == -EREMOTEIO || error == -EILSEQ) return error; if (mpio->pgpath) diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index 976ad4688af..9bfd057be68 100644 --- a/drivers/md/dm-raid1.c +++ b/drivers/md/dm-raid1.c @@ -22,8 +22,6 @@ #define DM_MSG_PREFIX "raid1" #define MAX_RECOVERY 1 /* Maximum number of regions recovered in parallel. */ -#define DM_IO_PAGES 64 -#define DM_KCOPYD_PAGES 64 #define DM_RAID1_HANDLE_ERRORS 0x01 #define errors_handled(p) ((p)->features & DM_RAID1_HANDLE_ERRORS) @@ -887,7 +885,7 @@ static struct mirror_set *alloc_context(unsigned int nr_mirrors, return NULL; } - ms->io_client = dm_io_client_create(DM_IO_PAGES); + ms->io_client = dm_io_client_create(); if (IS_ERR(ms->io_client)) { ti->error = "Error creating dm_io client"; mempool_destroy(ms->read_record_pool); @@ -1117,9 +1115,11 @@ static int mirror_ctr(struct dm_target *ti, unsigned int argc, char **argv) goto err_destroy_wq; } - r = dm_kcopyd_client_create(DM_KCOPYD_PAGES, &ms->kcopyd_client); - if (r) + ms->kcopyd_client = dm_kcopyd_client_create(); + if (IS_ERR(ms->kcopyd_client)) { + r = PTR_ERR(ms->kcopyd_client); goto err_destroy_wq; + } wakeup_mirrord(ms); return 0; diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c index 95891dfcbca..135c2f1fdbf 100644 --- a/drivers/md/dm-snap-persistent.c +++ b/drivers/md/dm-snap-persistent.c @@ -154,11 +154,6 @@ struct pstore { struct workqueue_struct *metadata_wq; }; -static unsigned sectors_to_pages(unsigned sectors) -{ - return DIV_ROUND_UP(sectors, PAGE_SIZE >> 9); -} - static int alloc_area(struct pstore *ps) { int r = -ENOMEM; @@ -318,8 +313,7 @@ static int read_header(struct pstore *ps, int *new_snapshot) chunk_size_supplied = 0; } - ps->io_client = dm_io_client_create(sectors_to_pages(ps->store-> - chunk_size)); + ps->io_client = dm_io_client_create(); if (IS_ERR(ps->io_client)) return PTR_ERR(ps->io_client); @@ -368,11 +362,6 @@ static int read_header(struct pstore *ps, int *new_snapshot) return r; } - r = dm_io_client_resize(sectors_to_pages(ps->store->chunk_size), - ps->io_client); - if (r) - return r; - r = alloc_area(ps); return r; diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index a2d330942cb..9ecff5f3023 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -40,11 +40,6 @@ static const char dm_snapshot_merge_target_name[] = "snapshot-merge"; #define SNAPSHOT_COPY_PRIORITY 2 /* - * Reserve 1MB for each snapshot initially (with minimum of 1 page). - */ -#define SNAPSHOT_PAGES (((1UL << 20) >> PAGE_SHIFT) ? : 1) - -/* * The size of the mempool used to track chunks in use. */ #define MIN_IOS 256 @@ -1116,8 +1111,9 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv) goto bad_hash_tables; } - r = dm_kcopyd_client_create(SNAPSHOT_PAGES, &s->kcopyd_client); - if (r) { + s->kcopyd_client = dm_kcopyd_client_create(); + if (IS_ERR(s->kcopyd_client)) { + r = PTR_ERR(s->kcopyd_client); ti->error = "Could not create kcopyd client"; goto bad_kcopyd; } diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index cb8380c9767..451c3bb176d 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -362,6 +362,7 @@ static void close_dev(struct dm_dev_internal *d, struct mapped_device *md) static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev, sector_t start, sector_t len, void *data) { + struct request_queue *q; struct queue_limits *limits = data; struct block_device *bdev = dev->bdev; sector_t dev_size = @@ -370,6 +371,22 @@ static int device_area_is_invalid(struct dm_target *ti, struct dm_dev *dev, limits->logical_block_size >> SECTOR_SHIFT; char b[BDEVNAME_SIZE]; + /* + * Some devices exist without request functions, + * such as loop devices not yet bound to backing files. + * Forbid the use of such devices. + */ + q = bdev_get_queue(bdev); + if (!q || !q->make_request_fn) { + DMWARN("%s: %s is not yet initialised: " + "start=%llu, len=%llu, dev_size=%llu", + dm_device_name(ti->table->md), bdevname(bdev, b), + (unsigned long long)start, + (unsigned long long)len, + (unsigned long long)dev_size); + return 1; + } + if (!dev_size) return 0; @@ -1346,7 +1363,8 @@ bool dm_table_supports_discards(struct dm_table *t) return 0; /* - * Ensure that at least one underlying device supports discards. + * Unless any target used by the table set discards_supported, + * require at least one underlying device to support discards. * t->devices includes internal dm devices such as mirror logs * so we need to use iterate_devices here, which targets * supporting discard must provide. @@ -1354,6 +1372,9 @@ bool dm_table_supports_discards(struct dm_table *t) while (i < dm_table_get_num_targets(t)) { ti = dm_table_get_target(t, i++); + if (ti->discards_supported) + return 1; + if (ti->type->iterate_devices && ti->type->iterate_devices(ti, device_discard_capable, NULL)) return 1; diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index 7c3b18e78ce..d36f41ea8cb 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -195,6 +195,8 @@ static pci_power_t acpi_pci_choose_state(struct pci_dev *pdev) return PCI_D2; case ACPI_STATE_D3: return PCI_D3hot; + case ACPI_STATE_D3_COLD: + return PCI_D3cold; } return PCI_POWER_ERROR; } diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 5cb999b50f9..45e0191c35d 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -39,7 +39,7 @@ config ACER_WMI config ACERHDF tristate "Acer Aspire One temperature and fan driver" - depends on THERMAL && THERMAL_HWMON && ACPI + depends on THERMAL && ACPI ---help--- This is a driver for Acer Aspire One netbooks. It allows to access the temperature sensor and to control the fan. @@ -760,4 +760,13 @@ config MXM_WMI MXM is a standard for laptop graphics cards, the WMI interface is required for switchable nvidia graphics machines +config INTEL_OAKTRAIL + tristate "Intel Oaktrail Platform Extras" + depends on ACPI + depends on RFKILL && BACKLIGHT_CLASS_DEVICE && ACPI + ---help--- + Intel Oaktrail platform need this driver to provide interfaces to + enable/disable the Camera, WiFi, BT etc. devices. If in doubt, say Y + here; it will only load on supported platforms. + endif # X86_PLATFORM_DEVICES diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile index a7ab3bc7b3a..afc1f832aa6 100644 --- a/drivers/platform/x86/Makefile +++ b/drivers/platform/x86/Makefile @@ -41,5 +41,6 @@ obj-$(CONFIG_XO1_RFKILL) += xo1-rfkill.o obj-$(CONFIG_XO15_EBOOK) += xo15-ebook.o obj-$(CONFIG_IBM_RTL) += ibm_rtl.o obj-$(CONFIG_SAMSUNG_LAPTOP) += samsung-laptop.o -obj-$(CONFIG_INTEL_MFLD_THERMAL) += intel_mid_thermal.o obj-$(CONFIG_MXM_WMI) += mxm-wmi.o +obj-$(CONFIG_INTEL_MID_POWER_BUTTON) += intel_mid_powerbtn.o +obj-$(CONFIG_INTEL_OAKTRAIL) += intel_oaktrail.o diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index ac4e7f83ce6..005417bd429 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -98,13 +98,26 @@ enum acer_wmi_event_ids { static const struct key_entry acer_wmi_keymap[] = { {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */ + {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */ {KE_KEY, 0x12, {KEY_BLUETOOTH} }, /* BT */ {KE_KEY, 0x21, {KEY_PROG1} }, /* Backup */ {KE_KEY, 0x22, {KEY_PROG2} }, /* Arcade */ {KE_KEY, 0x23, {KEY_PROG3} }, /* P_Key */ {KE_KEY, 0x24, {KEY_PROG4} }, /* Social networking_Key */ + {KE_IGNORE, 0x41, {KEY_MUTE} }, + {KE_IGNORE, 0x42, {KEY_PREVIOUSSONG} }, + {KE_IGNORE, 0x43, {KEY_NEXTSONG} }, + {KE_IGNORE, 0x44, {KEY_PLAYPAUSE} }, + {KE_IGNORE, 0x45, {KEY_STOP} }, + {KE_IGNORE, 0x48, {KEY_VOLUMEUP} }, + {KE_IGNORE, 0x49, {KEY_VOLUMEDOWN} }, + {KE_IGNORE, 0x61, {KEY_SWITCHVIDEOMODE} }, + {KE_IGNORE, 0x62, {KEY_BRIGHTNESSUP} }, + {KE_IGNORE, 0x63, {KEY_BRIGHTNESSDOWN} }, {KE_KEY, 0x64, {KEY_SWITCHVIDEOMODE} }, /* Display Switch */ + {KE_IGNORE, 0x81, {KEY_SLEEP} }, {KE_KEY, 0x82, {KEY_TOUCHPAD_TOGGLE} }, /* Touch Pad On/Off */ + {KE_IGNORE, 0x83, {KEY_TOUCHPAD_TOGGLE} }, {KE_END, 0} }; @@ -122,6 +135,7 @@ struct event_return_value { */ #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */ #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */ +#define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */ #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */ struct lm_input_params { @@ -737,8 +751,11 @@ WMI_execute_u32(u32 method_id, u32 in, u32 *out) obj = (union acpi_object *) result.pointer; if (obj && obj->type == ACPI_TYPE_BUFFER && - obj->buffer.length == sizeof(u32)) { + (obj->buffer.length == sizeof(u32) || + obj->buffer.length == sizeof(u64))) { tmp = *((u32 *) obj->buffer.pointer); + } else if (obj->type == ACPI_TYPE_INTEGER) { + tmp = (u32) obj->integer.value; } else { tmp = 0; } @@ -866,8 +883,11 @@ static acpi_status WMID_set_capabilities(void) obj = (union acpi_object *) out.pointer; if (obj && obj->type == ACPI_TYPE_BUFFER && - obj->buffer.length == sizeof(u32)) { + (obj->buffer.length == sizeof(u32) || + obj->buffer.length == sizeof(u64))) { devices = *((u32 *) obj->buffer.pointer); + } else if (obj->type == ACPI_TYPE_INTEGER) { + devices = (u32) obj->integer.value; } else { kfree(out.pointer); return AE_ERROR; @@ -876,7 +896,8 @@ static acpi_status WMID_set_capabilities(void) dmi_walk(type_aa_dmi_decode, NULL); if (!has_type_aa) { interface->capability |= ACER_CAP_WIRELESS; - interface->capability |= ACER_CAP_THREEG; + if (devices & 0x40) + interface->capability |= ACER_CAP_THREEG; if (devices & 0x10) interface->capability |= ACER_CAP_BLUETOOTH; } @@ -961,10 +982,12 @@ static void __init acer_commandline_init(void) * These will all fail silently if the value given is invalid, or the * capability isn't available on the given interface */ - set_u32(mailled, ACER_CAP_MAILLED); - if (!has_type_aa) + if (mailled >= 0) + set_u32(mailled, ACER_CAP_MAILLED); + if (!has_type_aa && threeg >= 0) set_u32(threeg, ACER_CAP_THREEG); - set_u32(brightness, ACER_CAP_BRIGHTNESS); + if (brightness >= 0) + set_u32(brightness, ACER_CAP_BRIGHTNESS); } /* @@ -1081,7 +1104,7 @@ static acpi_status wmid3_get_device_status(u32 *value, u16 device) return AE_ERROR; } if (obj->buffer.length != 8) { - pr_warning("Unknown buffer length %d\n", obj->buffer.length); + pr_warn("Unknown buffer length %d\n", obj->buffer.length); kfree(obj); return AE_ERROR; } @@ -1090,8 +1113,8 @@ static acpi_status wmid3_get_device_status(u32 *value, u16 device) kfree(obj); if (return_value.error_code || return_value.ec_return_value) - pr_warning("Get Device Status failed: " - "0x%x - 0x%x\n", return_value.error_code, + pr_warn("Get Device Status failed: 0x%x - 0x%x\n", + return_value.error_code, return_value.ec_return_value); else *value = !!(return_value.devices & device); @@ -1124,6 +1147,114 @@ static acpi_status get_device_status(u32 *value, u32 cap) } } +static acpi_status wmid3_set_device_status(u32 value, u16 device) +{ + struct wmid3_gds_return_value return_value; + acpi_status status; + union acpi_object *obj; + u16 devices; + struct wmid3_gds_input_param params = { + .function_num = 0x1, + .hotkey_number = 0x01, + .devices = ACER_WMID3_GDS_WIRELESS & + ACER_WMID3_GDS_THREEG & + ACER_WMID3_GDS_WIMAX & + ACER_WMID3_GDS_BLUETOOTH, + }; + struct acpi_buffer input = { + sizeof(struct wmid3_gds_input_param), + ¶ms + }; + struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; + struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL }; + + status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output); + if (ACPI_FAILURE(status)) + return status; + + obj = output.pointer; + + if (!obj) + return AE_ERROR; + else if (obj->type != ACPI_TYPE_BUFFER) { + kfree(obj); + return AE_ERROR; + } + if (obj->buffer.length != 8) { + pr_warning("Unknown buffer length %d\n", obj->buffer.length); + kfree(obj); + return AE_ERROR; + } + + return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer); + kfree(obj); + + if (return_value.error_code || return_value.ec_return_value) { + pr_warning("Get Current Device Status failed: " + "0x%x - 0x%x\n", return_value.error_code, + return_value.ec_return_value); + return status; + } + + devices = return_value.devices; + params.function_num = 0x2; + params.hotkey_number = 0x01; + params.devices = (value) ? (devices | device) : (devices & ~device); + + status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output2); + if (ACPI_FAILURE(status)) + return status; + + obj = output2.pointer; + + if (!obj) + return AE_ERROR; + else if (obj->type != ACPI_TYPE_BUFFER) { + kfree(obj); + return AE_ERROR; + } + if (obj->buffer.length != 4) { + pr_warning("Unknown buffer length %d\n", obj->buffer.length); + kfree(obj); + return AE_ERROR; + } + + return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer); + kfree(obj); + + if (return_value.error_code || return_value.ec_return_value) + pr_warning("Set Device Status failed: " + "0x%x - 0x%x\n", return_value.error_code, + return_value.ec_return_value); + + return status; +} + +static acpi_status set_device_status(u32 value, u32 cap) +{ + if (wmi_has_guid(WMID_GUID3)) { + u16 device; + + switch (cap) { + case ACER_CAP_WIRELESS: + device = ACER_WMID3_GDS_WIRELESS; + break; + case ACER_CAP_BLUETOOTH: + device = ACER_WMID3_GDS_BLUETOOTH; + break; + case ACER_CAP_THREEG: + device = ACER_WMID3_GDS_THREEG; + break; + default: + return AE_ERROR; + } + return wmid3_set_device_status(value, device); + + } else { + return set_u32(value, cap); + } +} + /* * Rfkill devices */ @@ -1160,7 +1291,7 @@ static int acer_rfkill_set(void *data, bool blocked) u32 cap = (unsigned long)data; if (rfkill_inited) { - status = set_u32(!blocked, cap); + status = set_device_status(!blocked, cap); if (ACPI_FAILURE(status)) return -ENODEV; } @@ -1317,7 +1448,7 @@ static void acer_wmi_notify(u32 value, void *context) status = wmi_get_event_data(value, &response); if (status != AE_OK) { - pr_warning("bad event status 0x%x\n", status); + pr_warn("bad event status 0x%x\n", status); return; } @@ -1326,12 +1457,12 @@ static void acer_wmi_notify(u32 value, void *context) if (!obj) return; if (obj->type != ACPI_TYPE_BUFFER) { - pr_warning("Unknown response received %d\n", obj->type); + pr_warn("Unknown response received %d\n", obj->type); kfree(obj); return; } if (obj->buffer.length != 8) { - pr_warning("Unknown buffer length %d\n", obj->buffer.length); + pr_warn("Unknown buffer length %d\n", obj->buffer.length); kfree(obj); return; } @@ -1343,7 +1474,7 @@ static void acer_wmi_notify(u32 value, void *context) case WMID_HOTKEY_EVENT: if (return_value.device_state) { u16 device_state = return_value.device_state; - pr_debug("deivces states: 0x%x\n", device_state); + pr_debug("device state: 0x%x\n", device_state); if (has_cap(ACER_CAP_WIRELESS)) rfkill_set_sw_state(wireless_rfkill, !(device_state & ACER_WMID3_GDS_WIRELESS)); @@ -1356,11 +1487,11 @@ static void acer_wmi_notify(u32 value, void *context) } if (!sparse_keymap_report_event(acer_wmi_input_dev, return_value.key_num, 1, true)) - pr_warning("Unknown key number - 0x%x\n", + pr_warn("Unknown key number - 0x%x\n", return_value.key_num); break; default: - pr_warning("Unknown function number - %d - %d\n", + pr_warn("Unknown function number - %d - %d\n", return_value.function, return_value.key_num); break; } @@ -1389,7 +1520,7 @@ wmid3_set_lm_mode(struct lm_input_params *params, return AE_ERROR; } if (obj->buffer.length != 4) { - pr_warning("Unknown buffer length %d\n", obj->buffer.length); + pr_warn("Unknown buffer length %d\n", obj->buffer.length); kfree(obj); return AE_ERROR; } @@ -1414,11 +1545,11 @@ static int acer_wmi_enable_ec_raw(void) status = wmid3_set_lm_mode(¶ms, &return_value); if (return_value.error_code || return_value.ec_return_value) - pr_warning("Enabling EC raw mode failed: " - "0x%x - 0x%x\n", return_value.error_code, - return_value.ec_return_value); + pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n", + return_value.error_code, + return_value.ec_return_value); else - pr_info("Enabled EC raw mode"); + pr_info("Enabled EC raw mode\n"); return status; } @@ -1437,9 +1568,9 @@ static int acer_wmi_enable_lm(void) status = wmid3_set_lm_mode(¶ms, &return_value); if (return_value.error_code || return_value.ec_return_value) - pr_warning("Enabling Launch Manager failed: " - "0x%x - 0x%x\n", return_value.error_code, - return_value.ec_return_value); + pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n", + return_value.error_code, + return_value.ec_return_value); return status; } @@ -1506,8 +1637,11 @@ static u32 get_wmid_devices(void) obj = (union acpi_object *) out.pointer; if (obj && obj->type == ACPI_TYPE_BUFFER && - obj->buffer.length == sizeof(u32)) { + (obj->buffer.length == sizeof(u32) || + obj->buffer.length == sizeof(u64))) { devices = *((u32 *) obj->buffer.pointer); + } else if (obj->type == ACPI_TYPE_INTEGER) { + devices = (u32) obj->integer.value; } kfree(out.pointer); diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c index 60f9cfcac93..fca3489218b 100644 --- a/drivers/platform/x86/acerhdf.c +++ b/drivers/platform/x86/acerhdf.c @@ -35,10 +35,8 @@ #include <linux/kernel.h> #include <linux/module.h> -#include <linux/fs.h> #include <linux/dmi.h> -#include <acpi/acpi_drivers.h> -#include <linux/sched.h> +#include <linux/acpi.h> #include <linux/thermal.h> #include <linux/platform_device.h> diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index c53b3ff7978..d65df92e2ac 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -318,7 +318,7 @@ static int acpi_check_handle(acpi_handle handle, const char *method, if (status != AE_OK) { if (ret) - pr_warning("Error finding %s\n", method); + pr_warn("Error finding %s\n", method); return -ENODEV; } return 0; @@ -383,7 +383,7 @@ static int asus_kled_lvl(struct asus_laptop *asus) rv = acpi_evaluate_integer(asus->handle, METHOD_KBD_LIGHT_GET, ¶ms, &kblv); if (ACPI_FAILURE(rv)) { - pr_warning("Error reading kled level\n"); + pr_warn("Error reading kled level\n"); return -ENODEV; } return kblv; @@ -397,7 +397,7 @@ static int asus_kled_set(struct asus_laptop *asus, int kblv) kblv = 0; if (write_acpi_int(asus->handle, METHOD_KBD_LIGHT_SET, kblv)) { - pr_warning("Keyboard LED display write failed\n"); + pr_warn("Keyboard LED display write failed\n"); return -EINVAL; } return 0; @@ -531,7 +531,7 @@ static int asus_read_brightness(struct backlight_device *bd) rv = acpi_evaluate_integer(asus->handle, METHOD_BRIGHTNESS_GET, NULL, &value); if (ACPI_FAILURE(rv)) - pr_warning("Error reading brightness\n"); + pr_warn("Error reading brightness\n"); return value; } @@ -541,7 +541,7 @@ static int asus_set_brightness(struct backlight_device *bd, int value) struct asus_laptop *asus = bl_get_data(bd); if (write_acpi_int(asus->handle, METHOD_BRIGHTNESS_SET, value)) { - pr_warning("Error changing brightness\n"); + pr_warn("Error changing brightness\n"); return -EIO; } return 0; @@ -730,7 +730,7 @@ static ssize_t store_ledd(struct device *dev, struct device_attribute *attr, rv = parse_arg(buf, count, &value); if (rv > 0) { if (write_acpi_int(asus->handle, METHOD_LEDD, value)) { - pr_warning("LED display write failed\n"); + pr_warn("LED display write failed\n"); return -ENODEV; } asus->ledd_status = (u32) value; @@ -752,7 +752,7 @@ static int asus_wireless_status(struct asus_laptop *asus, int mask) rv = acpi_evaluate_integer(asus->handle, METHOD_WL_STATUS, NULL, &status); if (ACPI_FAILURE(rv)) { - pr_warning("Error reading Wireless status\n"); + pr_warn("Error reading Wireless status\n"); return -EINVAL; } return !!(status & mask); @@ -764,7 +764,7 @@ static int asus_wireless_status(struct asus_laptop *asus, int mask) static int asus_wlan_set(struct asus_laptop *asus, int status) { if (write_acpi_int(asus->handle, METHOD_WLAN, !!status)) { - pr_warning("Error setting wlan status to %d", status); + pr_warn("Error setting wlan status to %d\n", status); return -EIO; } return 0; @@ -792,7 +792,7 @@ static ssize_t store_wlan(struct device *dev, struct device_attribute *attr, static int asus_bluetooth_set(struct asus_laptop *asus, int status) { if (write_acpi_int(asus->handle, METHOD_BLUETOOTH, !!status)) { - pr_warning("Error setting bluetooth status to %d", status); + pr_warn("Error setting bluetooth status to %d\n", status); return -EIO; } return 0; @@ -821,7 +821,7 @@ static ssize_t store_bluetooth(struct device *dev, static int asus_wimax_set(struct asus_laptop *asus, int status) { if (write_acpi_int(asus->handle, METHOD_WIMAX, !!status)) { - pr_warning("Error setting wimax status to %d", status); + pr_warn("Error setting wimax status to %d\n", status); return -EIO; } return 0; @@ -850,7 +850,7 @@ static ssize_t store_wimax(struct device *dev, static int asus_wwan_set(struct asus_laptop *asus, int status) { if (write_acpi_int(asus->handle, METHOD_WWAN, !!status)) { - pr_warning("Error setting wwan status to %d", status); + pr_warn("Error setting wwan status to %d\n", status); return -EIO; } return 0; @@ -880,7 +880,7 @@ static void asus_set_display(struct asus_laptop *asus, int value) { /* no sanity check needed for now */ if (write_acpi_int(asus->handle, METHOD_SWITCH_DISPLAY, value)) - pr_warning("Error setting display\n"); + pr_warn("Error setting display\n"); return; } @@ -909,7 +909,7 @@ static ssize_t store_disp(struct device *dev, struct device_attribute *attr, static void asus_als_switch(struct asus_laptop *asus, int value) { if (write_acpi_int(asus->handle, METHOD_ALS_CONTROL, value)) - pr_warning("Error setting light sensor switch\n"); + pr_warn("Error setting light sensor switch\n"); asus->light_switch = value; } @@ -937,7 +937,7 @@ static ssize_t store_lssw(struct device *dev, struct device_attribute *attr, static void asus_als_level(struct asus_laptop *asus, int value) { if (write_acpi_int(asus->handle, METHOD_ALS_LEVEL, value)) - pr_warning("Error setting light sensor level\n"); + pr_warn("Error setting light sensor level\n"); asus->light_level = value; } @@ -976,7 +976,7 @@ static int asus_gps_status(struct asus_laptop *asus) rv = acpi_evaluate_integer(asus->handle, METHOD_GPS_STATUS, NULL, &status); if (ACPI_FAILURE(rv)) { - pr_warning("Error reading GPS status\n"); + pr_warn("Error reading GPS status\n"); return -ENODEV; } return !!status; @@ -1284,7 +1284,7 @@ static int asus_laptop_get_info(struct asus_laptop *asus) */ status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus->dsdt_info); if (ACPI_FAILURE(status)) - pr_warning("Couldn't get the DSDT table header\n"); + pr_warn("Couldn't get the DSDT table header\n"); /* We have to write 0 on init this far for all ASUS models */ if (write_acpi_int_ret(asus->handle, "INIT", 0, &buffer)) { @@ -1296,7 +1296,7 @@ static int asus_laptop_get_info(struct asus_laptop *asus) status = acpi_evaluate_integer(asus->handle, "BSTS", NULL, &bsts_result); if (ACPI_FAILURE(status)) - pr_warning("Error calling BSTS\n"); + pr_warn("Error calling BSTS\n"); else if (bsts_result) pr_notice("BSTS called, 0x%02x returned\n", (uint) bsts_result); diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 832a3fd7c1c..00460cb9587 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -425,7 +425,7 @@ static void asus_rfkill_hotplug(struct asus_wmi *asus) if (asus->hotplug_slot) { bus = pci_find_bus(0, 1); if (!bus) { - pr_warning("Unable to find PCI bus 1?\n"); + pr_warn("Unable to find PCI bus 1?\n"); goto out_unlock; } @@ -436,12 +436,12 @@ static void asus_rfkill_hotplug(struct asus_wmi *asus) absent = (l == 0xffffffff); if (blocked != absent) { - pr_warning("BIOS says wireless lan is %s, " - "but the pci device is %s\n", - blocked ? "blocked" : "unblocked", - absent ? "absent" : "present"); - pr_warning("skipped wireless hotplug as probably " - "inappropriate for this model\n"); + pr_warn("BIOS says wireless lan is %s, " + "but the pci device is %s\n", + blocked ? "blocked" : "unblocked", + absent ? "absent" : "present"); + pr_warn("skipped wireless hotplug as probably " + "inappropriate for this model\n"); goto out_unlock; } @@ -500,7 +500,7 @@ static int asus_register_rfkill_notifier(struct asus_wmi *asus, char *node) ACPI_SYSTEM_NOTIFY, asus_rfkill_notify, asus); if (ACPI_FAILURE(status)) - pr_warning("Failed to register notify on %s\n", node); + pr_warn("Failed to register notify on %s\n", node); } else return -ENODEV; @@ -1223,7 +1223,7 @@ static int asus_wmi_sysfs_init(struct platform_device *device) /* * Platform device */ -static int __init asus_wmi_platform_init(struct asus_wmi *asus) +static int asus_wmi_platform_init(struct asus_wmi *asus) { int rv; @@ -1583,12 +1583,12 @@ static int asus_wmi_probe(struct platform_device *pdev) int ret; if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) { - pr_warning("Management GUID not found\n"); + pr_warn("Management GUID not found\n"); return -ENODEV; } if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) { - pr_warning("Event GUID not found\n"); + pr_warn("Event GUID not found\n"); return -ENODEV; } diff --git a/drivers/platform/x86/asus_acpi.c b/drivers/platform/x86/asus_acpi.c index f503607c064..d9312b3073e 100644 --- a/drivers/platform/x86/asus_acpi.c +++ b/drivers/platform/x86/asus_acpi.c @@ -30,6 +30,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> @@ -581,8 +583,7 @@ static int read_led(const char *ledname, int ledmask) if (read_acpi_int(NULL, ledname, &led_status)) return led_status; else - printk(KERN_WARNING "Asus ACPI: Error reading LED " - "status\n"); + pr_warn("Error reading LED status\n"); } return (hotk->status & ledmask) ? 1 : 0; } @@ -621,8 +622,7 @@ write_led(const char __user *buffer, unsigned long count, led_out = !led_out; if (!write_acpi_int(hotk->handle, ledname, led_out, NULL)) - printk(KERN_WARNING "Asus ACPI: LED (%s) write failed\n", - ledname); + pr_warn("LED (%s) write failed\n", ledname); return rv; } @@ -679,8 +679,7 @@ static ssize_t ledd_proc_write(struct file *file, const char __user *buffer, if (rv > 0) { if (!write_acpi_int (hotk->handle, hotk->methods->mt_ledd, value, NULL)) - printk(KERN_WARNING - "Asus ACPI: LED display write failed\n"); + pr_warn("LED display write failed\n"); else hotk->ledd_status = (u32) value; } @@ -838,8 +837,7 @@ static int get_lcd_state(void) } else { /* We don't have to check anything if we are here */ if (!read_acpi_int(NULL, hotk->methods->lcd_status, &lcd)) - printk(KERN_WARNING - "Asus ACPI: Error reading LCD status\n"); + pr_warn("Error reading LCD status\n"); if (hotk->model == L2D) lcd = ~lcd; @@ -871,7 +869,7 @@ static int set_lcd_state(int value) the exact behaviour is simulated here */ } if (ACPI_FAILURE(status)) - printk(KERN_WARNING "Asus ACPI: Error switching LCD\n"); + pr_warn("Error switching LCD\n"); } return 0; @@ -915,13 +913,11 @@ static int read_brightness(struct backlight_device *bd) if (hotk->methods->brightness_get) { /* SPLV/GPLV laptop */ if (!read_acpi_int(hotk->handle, hotk->methods->brightness_get, &value)) - printk(KERN_WARNING - "Asus ACPI: Error reading brightness\n"); + pr_warn("Error reading brightness\n"); } else if (hotk->methods->brightness_status) { /* For D1 for example */ if (!read_acpi_int(NULL, hotk->methods->brightness_status, &value)) - printk(KERN_WARNING - "Asus ACPI: Error reading brightness\n"); + pr_warn("Error reading brightness\n"); } else /* No GPLV method */ value = hotk->brightness; return value; @@ -939,8 +935,7 @@ static int set_brightness(int value) if (hotk->methods->brightness_set) { if (!write_acpi_int(hotk->handle, hotk->methods->brightness_set, value, NULL)) { - printk(KERN_WARNING - "Asus ACPI: Error changing brightness\n"); + pr_warn("Error changing brightness\n"); ret = -EIO; } goto out; @@ -955,8 +950,7 @@ static int set_brightness(int value) NULL, NULL); (value > 0) ? value-- : value++; if (ACPI_FAILURE(status)) { - printk(KERN_WARNING - "Asus ACPI: Error changing brightness\n"); + pr_warn("Error changing brightness\n"); ret = -EIO; } } @@ -1008,7 +1002,7 @@ static void set_display(int value) /* no sanity check needed for now */ if (!write_acpi_int(hotk->handle, hotk->methods->display_set, value, NULL)) - printk(KERN_WARNING "Asus ACPI: Error setting display\n"); + pr_warn("Error setting display\n"); return; } @@ -1021,8 +1015,7 @@ static int disp_proc_show(struct seq_file *m, void *v) int value = 0; if (!read_acpi_int(hotk->handle, hotk->methods->display_get, &value)) - printk(KERN_WARNING - "Asus ACPI: Error reading display status\n"); + pr_warn("Error reading display status\n"); value &= 0x07; /* needed for some models, shouldn't hurt others */ seq_printf(m, "%d\n", value); return 0; @@ -1068,7 +1061,7 @@ asus_proc_add(char *name, const struct file_operations *proc_fops, mode_t mode, proc = proc_create_data(name, mode, acpi_device_dir(device), proc_fops, acpi_driver_data(device)); if (!proc) { - printk(KERN_WARNING " Unable to create %s fs entry\n", name); + pr_warn(" Unable to create %s fs entry\n", name); return -1; } proc->uid = asus_uid; @@ -1085,8 +1078,8 @@ static int asus_hotk_add_fs(struct acpi_device *device) mode = S_IFREG | S_IRUGO | S_IWUSR | S_IWGRP; } else { mode = S_IFREG | S_IRUSR | S_IRGRP | S_IWUSR | S_IWGRP; - printk(KERN_WARNING " asus_uid and asus_gid parameters are " - "deprecated, use chown and chmod instead!\n"); + pr_warn(" asus_uid and asus_gid parameters are " + "deprecated, use chown and chmod instead!\n"); } acpi_device_dir(device) = asus_proc_dir; @@ -1099,8 +1092,7 @@ static int asus_hotk_add_fs(struct acpi_device *device) proc->uid = asus_uid; proc->gid = asus_gid; } else { - printk(KERN_WARNING " Unable to create " PROC_INFO - " fs entry\n"); + pr_warn(" Unable to create " PROC_INFO " fs entry\n"); } if (hotk->methods->mt_wled) { @@ -1283,20 +1275,19 @@ static int asus_hotk_get_info(void) */ status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus_info); if (ACPI_FAILURE(status)) - printk(KERN_WARNING " Couldn't get the DSDT table header\n"); + pr_warn(" Couldn't get the DSDT table header\n"); /* We have to write 0 on init this far for all ASUS models */ if (!write_acpi_int(hotk->handle, "INIT", 0, &buffer)) { - printk(KERN_ERR " Hotkey initialization failed\n"); + pr_err(" Hotkey initialization failed\n"); return -ENODEV; } /* This needs to be called for some laptops to init properly */ if (!read_acpi_int(hotk->handle, "BSTS", &bsts_result)) - printk(KERN_WARNING " Error calling BSTS\n"); + pr_warn(" Error calling BSTS\n"); else if (bsts_result) - printk(KERN_NOTICE " BSTS called, 0x%02x returned\n", - bsts_result); + pr_notice(" BSTS called, 0x%02x returned\n", bsts_result); /* * Try to match the object returned by INIT to the specific model. @@ -1324,23 +1315,21 @@ static int asus_hotk_get_info(void) if (asus_info && strncmp(asus_info->oem_table_id, "ODEM", 4) == 0) { hotk->model = P30; - printk(KERN_NOTICE - " Samsung P30 detected, supported\n"); + pr_notice(" Samsung P30 detected, supported\n"); hotk->methods = &model_conf[hotk->model]; kfree(model); return 0; } else { hotk->model = M2E; - printk(KERN_NOTICE " unsupported model %s, trying " - "default values\n", string); - printk(KERN_NOTICE - " send /proc/acpi/dsdt to the developers\n"); + pr_notice(" unsupported model %s, trying default values\n", + string); + pr_notice(" send /proc/acpi/dsdt to the developers\n"); kfree(model); return -ENODEV; } } hotk->methods = &model_conf[hotk->model]; - printk(KERN_NOTICE " %s model detected, supported\n", string); + pr_notice(" %s model detected, supported\n", string); /* Sort of per-model blacklist */ if (strncmp(string, "L2B", 3) == 0) @@ -1385,7 +1374,7 @@ static int asus_hotk_check(void) if (hotk->device->status.present) { result = asus_hotk_get_info(); } else { - printk(KERN_ERR " Hotkey device not present, aborting\n"); + pr_err(" Hotkey device not present, aborting\n"); return -EINVAL; } @@ -1399,8 +1388,7 @@ static int asus_hotk_add(struct acpi_device *device) acpi_status status = AE_OK; int result; - printk(KERN_NOTICE "Asus Laptop ACPI Extras version %s\n", - ASUS_ACPI_VERSION); + pr_notice("Asus Laptop ACPI Extras version %s\n", ASUS_ACPI_VERSION); hotk = kzalloc(sizeof(struct asus_hotk), GFP_KERNEL); if (!hotk) @@ -1428,15 +1416,14 @@ static int asus_hotk_add(struct acpi_device *device) acpi_evaluate_object(NULL, hotk->methods->brightness_down, NULL, NULL); if (ACPI_FAILURE(status)) - printk(KERN_WARNING " Error changing brightness\n"); + pr_warn(" Error changing brightness\n"); else { status = acpi_evaluate_object(NULL, hotk->methods->brightness_up, NULL, NULL); if (ACPI_FAILURE(status)) - printk(KERN_WARNING " Strange, error changing" - " brightness\n"); + pr_warn(" Strange, error changing brightness\n"); } } @@ -1488,7 +1475,7 @@ static int __init asus_acpi_init(void) asus_proc_dir = proc_mkdir(PROC_ASUS, acpi_root_dir); if (!asus_proc_dir) { - printk(KERN_ERR "Asus ACPI: Unable to create /proc entry\n"); + pr_err("Unable to create /proc entry\n"); acpi_bus_unregister_driver(&asus_hotk_driver); return -ENODEV; } @@ -1513,7 +1500,7 @@ static int __init asus_acpi_init(void) &asus_backlight_data, &props); if (IS_ERR(asus_backlight_device)) { - printk(KERN_ERR "Could not register asus backlight device\n"); + pr_err("Could not register asus backlight device\n"); asus_backlight_device = NULL; asus_acpi_exit(); return -ENODEV; diff --git a/drivers/platform/x86/compal-laptop.c b/drivers/platform/x86/compal-laptop.c index c16a27641ce..3f204fde1b0 100644 --- a/drivers/platform/x86/compal-laptop.c +++ b/drivers/platform/x86/compal-laptop.c @@ -68,6 +68,8 @@ * only enabled on a JHL90 board until it is verified that they work on the * other boards too. See the extra_features variable. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> @@ -200,8 +202,8 @@ static bool extra_features; * watching the output of address 0x4F (do an ec_transaction writing 0x33 * into 0x4F and read a few bytes from the output, like so: * u8 writeData = 0x33; - * ec_transaction(0x4F, &writeData, 1, buffer, 32, 0); - * That address is labelled "fan1 table information" in the service manual. + * ec_transaction(0x4F, &writeData, 1, buffer, 32); + * That address is labeled "fan1 table information" in the service manual. * It should be clear which value in 'buffer' changes). This seems to be * related to fan speed. It isn't a proper 'realtime' fan speed value * though, because physically stopping or speeding up the fan doesn't @@ -286,7 +288,7 @@ static int get_backlight_level(void) static void set_backlight_state(bool on) { u8 data = on ? BACKLIGHT_STATE_ON_DATA : BACKLIGHT_STATE_OFF_DATA; - ec_transaction(BACKLIGHT_STATE_ADDR, &data, 1, NULL, 0, 0); + ec_transaction(BACKLIGHT_STATE_ADDR, &data, 1, NULL, 0); } @@ -294,24 +296,24 @@ static void set_backlight_state(bool on) static void pwm_enable_control(void) { unsigned char writeData = PWM_ENABLE_DATA; - ec_transaction(PWM_ENABLE_ADDR, &writeData, 1, NULL, 0, 0); + ec_transaction(PWM_ENABLE_ADDR, &writeData, 1, NULL, 0); } static void pwm_disable_control(void) { unsigned char writeData = PWM_DISABLE_DATA; - ec_transaction(PWM_DISABLE_ADDR, &writeData, 1, NULL, 0, 0); + ec_transaction(PWM_DISABLE_ADDR, &writeData, 1, NULL, 0); } static void set_pwm(int pwm) { - ec_transaction(PWM_ADDRESS, &pwm_lookup_table[pwm], 1, NULL, 0, 0); + ec_transaction(PWM_ADDRESS, &pwm_lookup_table[pwm], 1, NULL, 0); } static int get_fan_rpm(void) { u8 value, data = FAN_DATA; - ec_transaction(FAN_ADDRESS, &data, 1, &value, 1, 0); + ec_transaction(FAN_ADDRESS, &data, 1, &value, 1); return 100 * (int)value; } @@ -760,16 +762,14 @@ static struct rfkill *bt_rfkill; static int dmi_check_cb(const struct dmi_system_id *id) { - printk(KERN_INFO DRIVER_NAME": Identified laptop model '%s'\n", - id->ident); + pr_info("Identified laptop model '%s'\n", id->ident); extra_features = false; return 1; } static int dmi_check_cb_extra(const struct dmi_system_id *id) { - printk(KERN_INFO DRIVER_NAME": Identified laptop model '%s', " - "enabling extra features\n", + pr_info("Identified laptop model '%s', enabling extra features\n", id->ident); extra_features = true; return 1; @@ -956,14 +956,12 @@ static int __init compal_init(void) int ret; if (acpi_disabled) { - printk(KERN_ERR DRIVER_NAME": ACPI needs to be enabled for " - "this driver to work!\n"); + pr_err("ACPI needs to be enabled for this driver to work!\n"); return -ENODEV; } if (!force && !dmi_check_system(compal_dmi_table)) { - printk(KERN_ERR DRIVER_NAME": Motherboard not recognized (You " - "could try the module's force-parameter)"); + pr_err("Motherboard not recognized (You could try the module's force-parameter)\n"); return -ENODEV; } @@ -998,8 +996,7 @@ static int __init compal_init(void) if (ret) goto err_rfkill; - printk(KERN_INFO DRIVER_NAME": Driver "DRIVER_VERSION - " successfully loaded\n"); + pr_info("Driver " DRIVER_VERSION " successfully loaded\n"); return 0; err_rfkill: @@ -1064,7 +1061,7 @@ static void __exit compal_cleanup(void) rfkill_destroy(wifi_rfkill); rfkill_destroy(bt_rfkill); - printk(KERN_INFO DRIVER_NAME": Driver unloaded\n"); + pr_info("Driver unloaded\n"); } static int __devexit compal_remove(struct platform_device *pdev) @@ -1074,8 +1071,7 @@ static int __devexit compal_remove(struct platform_device *pdev) if (!extra_features) return 0; - printk(KERN_INFO DRIVER_NAME": Unloading: resetting fan control " - "to motherboard\n"); + pr_info("Unloading: resetting fan control to motherboard\n"); pwm_disable_control(); data = platform_get_drvdata(pdev); diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c index de301aa8e5c..d3841de6a8c 100644 --- a/drivers/platform/x86/dell-laptop.c +++ b/drivers/platform/x86/dell-laptop.c @@ -11,6 +11,8 @@ * published by the Free Software Foundation. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> @@ -434,8 +436,7 @@ static int __init dell_setup_rfkill(void) int ret; if (dmi_check_system(dell_blacklist)) { - printk(KERN_INFO "dell-laptop: Blacklisted hardware detected - " - "not enabling rfkill\n"); + pr_info("Blacklisted hardware detected - not enabling rfkill\n"); return 0; } @@ -606,7 +607,7 @@ static int __init dell_init(void) dmi_walk(find_tokens, NULL); if (!da_tokens) { - printk(KERN_INFO "dell-laptop: Unable to find dmi tokens\n"); + pr_info("Unable to find dmi tokens\n"); return -ENODEV; } @@ -636,14 +637,13 @@ static int __init dell_init(void) ret = dell_setup_rfkill(); if (ret) { - printk(KERN_WARNING "dell-laptop: Unable to setup rfkill\n"); + pr_warn("Unable to setup rfkill\n"); goto fail_rfkill; } ret = i8042_install_filter(dell_laptop_i8042_filter); if (ret) { - printk(KERN_WARNING - "dell-laptop: Unable to install key filter\n"); + pr_warn("Unable to install key filter\n"); goto fail_filter; } diff --git a/drivers/platform/x86/dell-wmi-aio.c b/drivers/platform/x86/dell-wmi-aio.c index 0ed84573ae1..3f945457f71 100644 --- a/drivers/platform/x86/dell-wmi-aio.c +++ b/drivers/platform/x86/dell-wmi-aio.c @@ -15,6 +15,7 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/kernel.h> @@ -138,7 +139,7 @@ static int __init dell_wmi_aio_init(void) guid = dell_wmi_aio_find(); if (!guid) { - pr_warning("No known WMI GUID found\n"); + pr_warn("No known WMI GUID found\n"); return -ENXIO; } diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c index 77f1d55414c..ce790827e19 100644 --- a/drivers/platform/x86/dell-wmi.c +++ b/drivers/platform/x86/dell-wmi.c @@ -23,6 +23,8 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> @@ -141,7 +143,7 @@ static void dell_wmi_notify(u32 value, void *context) status = wmi_get_event_data(value, &response); if (status != AE_OK) { - printk(KERN_INFO "dell-wmi: bad event status 0x%x\n", status); + pr_info("bad event status 0x%x\n", status); return; } @@ -153,8 +155,8 @@ static void dell_wmi_notify(u32 value, void *context) u16 *buffer_entry = (u16 *)obj->buffer.pointer; if (dell_new_hk_type && (buffer_entry[1] != 0x10)) { - printk(KERN_INFO "dell-wmi: Received unknown WMI event" - " (0x%x)\n", buffer_entry[1]); + pr_info("Received unknown WMI event (0x%x)\n", + buffer_entry[1]); kfree(obj); return; } @@ -167,8 +169,7 @@ static void dell_wmi_notify(u32 value, void *context) key = sparse_keymap_entry_from_scancode(dell_wmi_input_dev, reported_key); if (!key) { - printk(KERN_INFO "dell-wmi: Unknown key %x pressed\n", - reported_key); + pr_info("Unknown key %x pressed\n", reported_key); } else if ((key->keycode == KEY_BRIGHTNESSUP || key->keycode == KEY_BRIGHTNESSDOWN) && acpi_video) { /* Don't report brightness notifications that will also @@ -275,7 +276,7 @@ static int __init dell_wmi_init(void) acpi_status status; if (!wmi_has_guid(DELL_EVENT_GUID)) { - printk(KERN_WARNING "dell-wmi: No known WMI GUID found\n"); + pr_warn("No known WMI GUID found\n"); return -ENODEV; } @@ -290,9 +291,7 @@ static int __init dell_wmi_init(void) dell_wmi_notify, NULL); if (ACPI_FAILURE(status)) { dell_wmi_input_destroy(); - printk(KERN_ERR - "dell-wmi: Unable to register notify handler - %d\n", - status); + pr_err("Unable to register notify handler - %d\n", status); return -ENODEV; } diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 2c1abf63957..1c45d92e216 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -228,7 +228,7 @@ static int set_acpi(struct eeepc_laptop *eeepc, int cm, int value) return -ENODEV; if (write_acpi_int(eeepc->handle, method, value)) - pr_warning("Error writing %s\n", method); + pr_warn("Error writing %s\n", method); return 0; } @@ -243,7 +243,7 @@ static int get_acpi(struct eeepc_laptop *eeepc, int cm) return -ENODEV; if (read_acpi_int(eeepc->handle, method, &value)) - pr_warning("Error reading %s\n", method); + pr_warn("Error reading %s\n", method); return value; } @@ -261,7 +261,7 @@ static int acpi_setter_handle(struct eeepc_laptop *eeepc, int cm, status = acpi_get_handle(eeepc->handle, (char *)method, handle); if (status != AE_OK) { - pr_warning("Error finding %s\n", method); + pr_warn("Error finding %s\n", method); return -ENODEV; } return 0; @@ -417,7 +417,7 @@ static ssize_t store_cpufv_disabled(struct device *dev, switch (value) { case 0: if (eeepc->cpufv_disabled) - pr_warning("cpufv enabled (not officially supported " + pr_warn("cpufv enabled (not officially supported " "on this model)\n"); eeepc->cpufv_disabled = false; return rv; @@ -609,7 +609,7 @@ static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc, acpi_handle handle) bus = port->subordinate; if (!bus) { - pr_warning("Unable to find PCI bus?\n"); + pr_warn("Unable to find PCI bus 1?\n"); goto out_unlock; } @@ -621,12 +621,12 @@ static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc, acpi_handle handle) absent = (l == 0xffffffff); if (blocked != absent) { - pr_warning("BIOS says wireless lan is %s, " - "but the pci device is %s\n", + pr_warn("BIOS says wireless lan is %s, " + "but the pci device is %s\n", blocked ? "blocked" : "unblocked", absent ? "absent" : "present"); - pr_warning("skipped wireless hotplug as probably " - "inappropriate for this model\n"); + pr_warn("skipped wireless hotplug as probably " + "inappropriate for this model\n"); goto out_unlock; } @@ -691,7 +691,8 @@ static int eeepc_register_rfkill_notifier(struct eeepc_laptop *eeepc, eeepc_rfkill_notify, eeepc); if (ACPI_FAILURE(status)) - pr_warning("Failed to register notify on %s\n", node); + pr_warn("Failed to register notify on %s\n", node); + /* * Refresh pci hotplug in case the rfkill state was * changed during setup. diff --git a/drivers/platform/x86/eeepc-wmi.c b/drivers/platform/x86/eeepc-wmi.c index 649dcadd8ea..4aa867a9b88 100644 --- a/drivers/platform/x86/eeepc-wmi.c +++ b/drivers/platform/x86/eeepc-wmi.c @@ -84,7 +84,7 @@ static const struct key_entry eeepc_wmi_keymap[] = { static acpi_status eeepc_wmi_parse_device(acpi_handle handle, u32 level, void *context, void **retval) { - pr_warning("Found legacy ATKD device (%s)", EEEPC_ACPI_HID); + pr_warn("Found legacy ATKD device (%s)\n", EEEPC_ACPI_HID); *(bool *)context = true; return AE_CTRL_TERMINATE; } @@ -105,12 +105,12 @@ static int eeepc_wmi_check_atkd(void) static int eeepc_wmi_probe(struct platform_device *pdev) { if (eeepc_wmi_check_atkd()) { - pr_warning("WMI device present, but legacy ATKD device is also " - "present and enabled."); - pr_warning("You probably booted with acpi_osi=\"Linux\" or " - "acpi_osi=\"!Windows 2009\""); - pr_warning("Can't load eeepc-wmi, use default acpi_osi " - "(preferred) or eeepc-laptop"); + pr_warn("WMI device present, but legacy ATKD device is also " + "present and enabled\n"); + pr_warn("You probably booted with acpi_osi=\"Linux\" or " + "acpi_osi=\"!Windows 2009\"\n"); + pr_warn("Can't load eeepc-wmi, use default acpi_osi " + "(preferred) or eeepc-laptop\n"); return -EBUSY; } return 0; diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c index 493054c2dbe..6b26666b37f 100644 --- a/drivers/platform/x86/fujitsu-laptop.c +++ b/drivers/platform/x86/fujitsu-laptop.c @@ -56,6 +56,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> @@ -585,8 +587,7 @@ static struct platform_driver fujitsupf_driver = { static void dmi_check_cb_common(const struct dmi_system_id *id) { acpi_handle handle; - printk(KERN_INFO "fujitsu-laptop: Identified laptop model '%s'.\n", - id->ident); + pr_info("Identified laptop model '%s'\n", id->ident); if (use_alt_lcd_levels == -1) { if (ACPI_SUCCESS(acpi_get_handle(NULL, "\\_SB.PCI0.LPCB.FJEX.SBL2", &handle))) @@ -691,11 +692,11 @@ static int acpi_fujitsu_add(struct acpi_device *device) result = acpi_bus_update_power(fujitsu->acpi_handle, &state); if (result) { - printk(KERN_ERR "Error reading power state\n"); + pr_err("Error reading power state\n"); goto err_unregister_input_dev; } - printk(KERN_INFO "ACPI: %s [%s] (%s)\n", + pr_info("ACPI: %s [%s] (%s)\n", acpi_device_name(device), acpi_device_bid(device), !device->power.state ? "on" : "off"); @@ -707,7 +708,7 @@ static int acpi_fujitsu_add(struct acpi_device *device) if (ACPI_FAILURE (acpi_evaluate_object (device->handle, METHOD_NAME__INI, NULL, NULL))) - printk(KERN_ERR "_INI Method failed\n"); + pr_err("_INI Method failed\n"); } /* do config (detect defaults) */ @@ -827,7 +828,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) error = kfifo_alloc(&fujitsu_hotkey->fifo, RINGBUFFERSIZE * sizeof(int), GFP_KERNEL); if (error) { - printk(KERN_ERR "kfifo_alloc failed\n"); + pr_err("kfifo_alloc failed\n"); goto err_stop; } @@ -859,13 +860,13 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) result = acpi_bus_update_power(fujitsu_hotkey->acpi_handle, &state); if (result) { - printk(KERN_ERR "Error reading power state\n"); + pr_err("Error reading power state\n"); goto err_unregister_input_dev; } - printk(KERN_INFO "ACPI: %s [%s] (%s)\n", - acpi_device_name(device), acpi_device_bid(device), - !device->power.state ? "on" : "off"); + pr_info("ACPI: %s [%s] (%s)\n", + acpi_device_name(device), acpi_device_bid(device), + !device->power.state ? "on" : "off"); fujitsu_hotkey->dev = device; @@ -875,7 +876,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) if (ACPI_FAILURE (acpi_evaluate_object (device->handle, METHOD_NAME__INI, NULL, NULL))) - printk(KERN_ERR "_INI Method failed\n"); + pr_err("_INI Method failed\n"); } i = 0; @@ -897,8 +898,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0); /* Suspect this is a keymap of the application panel, print it */ - printk(KERN_INFO "fujitsu-laptop: BTNI: [0x%x]\n", - call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0)); + pr_info("BTNI: [0x%x]\n", call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0)); #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE) if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) { @@ -907,8 +907,8 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) if (result == 0) { fujitsu_hotkey->logolamp_registered = 1; } else { - printk(KERN_ERR "fujitsu-laptop: Could not register " - "LED handler for logo lamp, error %i\n", result); + pr_err("Could not register LED handler for logo lamp, error %i\n", + result); } } @@ -919,8 +919,8 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) if (result == 0) { fujitsu_hotkey->kblamps_registered = 1; } else { - printk(KERN_ERR "fujitsu-laptop: Could not register " - "LED handler for keyboard lamps, error %i\n", result); + pr_err("Could not register LED handler for keyboard lamps, error %i\n", + result); } } #endif @@ -1169,8 +1169,7 @@ static int __init fujitsu_init(void) fujitsu->bl_device->props.power = 0; } - printk(KERN_INFO "fujitsu-laptop: driver " FUJITSU_DRIVER_VERSION - " successfully loaded.\n"); + pr_info("driver " FUJITSU_DRIVER_VERSION " successfully loaded\n"); return 0; @@ -1216,7 +1215,7 @@ static void __exit fujitsu_cleanup(void) kfree(fujitsu); - printk(KERN_INFO "fujitsu-laptop: driver unloaded.\n"); + pr_info("driver unloaded\n"); } module_init(fujitsu_init); diff --git a/drivers/platform/x86/hdaps.c b/drivers/platform/x86/hdaps.c index 067bf36d32f..5a34973dc16 100644 --- a/drivers/platform/x86/hdaps.c +++ b/drivers/platform/x86/hdaps.c @@ -26,6 +26,8 @@ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/delay.h> #include <linux/platform_device.h> #include <linux/input-polldev.h> @@ -238,7 +240,7 @@ static int hdaps_device_init(void) __check_latch(0x1611, 0x01)) goto out; - printk(KERN_DEBUG "hdaps: initial latch check good (0x%02x).\n", + printk(KERN_DEBUG "hdaps: initial latch check good (0x%02x)\n", __get_latch(0x1611)); outb(0x17, 0x1610); @@ -299,7 +301,7 @@ static int hdaps_probe(struct platform_device *dev) if (ret) return ret; - printk(KERN_INFO "hdaps: device successfully initialized.\n"); + pr_info("device successfully initialized\n"); return 0; } @@ -480,7 +482,7 @@ static struct attribute_group hdaps_attribute_group = { /* hdaps_dmi_match - found a match. return one, short-circuiting the hunt. */ static int __init hdaps_dmi_match(const struct dmi_system_id *id) { - printk(KERN_INFO "hdaps: %s detected.\n", id->ident); + pr_info("%s detected\n", id->ident); return 1; } @@ -488,8 +490,7 @@ static int __init hdaps_dmi_match(const struct dmi_system_id *id) static int __init hdaps_dmi_match_invert(const struct dmi_system_id *id) { hdaps_invert = (unsigned long)id->driver_data; - printk(KERN_INFO "hdaps: inverting axis (%u) readings.\n", - hdaps_invert); + pr_info("inverting axis (%u) readings\n", hdaps_invert); return hdaps_dmi_match(id); } @@ -543,7 +544,7 @@ static int __init hdaps_init(void) int ret; if (!dmi_check_system(hdaps_whitelist)) { - printk(KERN_WARNING "hdaps: supported laptop not found!\n"); + pr_warn("supported laptop not found!\n"); ret = -ENODEV; goto out; } @@ -595,7 +596,7 @@ static int __init hdaps_init(void) if (ret) goto out_idev; - printk(KERN_INFO "hdaps: driver successfully loaded.\n"); + pr_info("driver successfully loaded\n"); return 0; out_idev: @@ -609,7 +610,7 @@ out_driver: out_region: release_region(HDAPS_LOW_PORT, HDAPS_NR_PORTS); out: - printk(KERN_WARNING "hdaps: driver init failed (ret=%d)!\n", ret); + pr_warn("driver init failed (ret=%d)!\n", ret); return ret; } @@ -622,7 +623,7 @@ static void __exit hdaps_exit(void) platform_driver_unregister(&hdaps_driver); release_region(HDAPS_LOW_PORT, HDAPS_NR_PORTS); - printk(KERN_INFO "hdaps: driver unloaded.\n"); + pr_info("driver unloaded\n"); } module_init(hdaps_init); diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c index 1bc4a7539ba..f94017bcdd6 100644 --- a/drivers/platform/x86/hp-wmi.c +++ b/drivers/platform/x86/hp-wmi.c @@ -24,6 +24,8 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> @@ -54,9 +56,6 @@ MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4"); #define HPWMI_HOTKEY_QUERY 0xc #define HPWMI_WIRELESS2_QUERY 0x1b -#define PREFIX "HP WMI: " -#define UNIMP "Unimplemented " - enum hp_wmi_radio { HPWMI_WIFI = 0, HPWMI_BLUETOOTH = 1, @@ -228,9 +227,8 @@ static int hp_wmi_perform_query(int query, int write, void *buffer, if (bios_return->return_code) { if (bios_return->return_code != HPWMI_RET_UNKNOWN_CMDTYPE) - printk(KERN_WARNING PREFIX "query 0x%x returned " - "error 0x%x\n", - query, bios_return->return_code); + pr_warn("query 0x%x returned error 0x%x\n", + query, bios_return->return_code); kfree(obj); return bios_return->return_code; } @@ -384,8 +382,7 @@ static int hp_wmi_rfkill2_refresh(void) if (num >= state.count || devstate->rfkill_id != rfkill2[i].id) { - printk(KERN_WARNING PREFIX "power configuration of " - "the wireless devices unexpectedly changed\n"); + pr_warn("power configuration of the wireless devices unexpectedly changed\n"); continue; } @@ -471,7 +468,7 @@ static void hp_wmi_notify(u32 value, void *context) status = wmi_get_event_data(value, &response); if (status != AE_OK) { - printk(KERN_INFO PREFIX "bad event status 0x%x\n", status); + pr_info("bad event status 0x%x\n", status); return; } @@ -480,8 +477,7 @@ static void hp_wmi_notify(u32 value, void *context) if (!obj) return; if (obj->type != ACPI_TYPE_BUFFER) { - printk(KERN_INFO "hp-wmi: Unknown response received %d\n", - obj->type); + pr_info("Unknown response received %d\n", obj->type); kfree(obj); return; } @@ -498,8 +494,7 @@ static void hp_wmi_notify(u32 value, void *context) event_id = *location; event_data = *(location + 2); } else { - printk(KERN_INFO "hp-wmi: Unknown buffer length %d\n", - obj->buffer.length); + pr_info("Unknown buffer length %d\n", obj->buffer.length); kfree(obj); return; } @@ -527,8 +522,7 @@ static void hp_wmi_notify(u32 value, void *context) if (!sparse_keymap_report_event(hp_wmi_input_dev, key_code, 1, true)) - printk(KERN_INFO PREFIX "Unknown key code - 0x%x\n", - key_code); + pr_info("Unknown key code - 0x%x\n", key_code); break; case HPWMI_WIRELESS: if (rfkill2_count) { @@ -550,14 +544,12 @@ static void hp_wmi_notify(u32 value, void *context) hp_wmi_get_hw_state(HPWMI_WWAN)); break; case HPWMI_CPU_BATTERY_THROTTLE: - printk(KERN_INFO PREFIX UNIMP "CPU throttle because of 3 Cell" - " battery event detected\n"); + pr_info("Unimplemented CPU throttle because of 3 Cell battery event detected\n"); break; case HPWMI_LOCK_SWITCH: break; default: - printk(KERN_INFO PREFIX "Unknown event_id - %d - 0x%x\n", - event_id, event_data); + pr_info("Unknown event_id - %d - 0x%x\n", event_id, event_data); break; } } @@ -705,7 +697,7 @@ static int __devinit hp_wmi_rfkill2_setup(struct platform_device *device) return err; if (state.count > HPWMI_MAX_RFKILL2_DEVICES) { - printk(KERN_WARNING PREFIX "unable to parse 0x1b query output\n"); + pr_warn("unable to parse 0x1b query output\n"); return -EINVAL; } @@ -727,14 +719,14 @@ static int __devinit hp_wmi_rfkill2_setup(struct platform_device *device) name = "hp-wwan"; break; default: - printk(KERN_WARNING PREFIX "unknown device type 0x%x\n", - state.device[i].radio_type); + pr_warn("unknown device type 0x%x\n", + state.device[i].radio_type); continue; } if (!state.device[i].vendor_id) { - printk(KERN_WARNING PREFIX "zero device %d while %d " - "reported\n", i, state.count); + pr_warn("zero device %d while %d reported\n", + i, state.count); continue; } @@ -755,8 +747,7 @@ static int __devinit hp_wmi_rfkill2_setup(struct platform_device *device) IS_HWBLOCKED(state.device[i].power)); if (!(state.device[i].power & HPWMI_POWER_BIOS)) - printk(KERN_INFO PREFIX "device %s blocked by BIOS\n", - name); + pr_info("device %s blocked by BIOS\n", name); err = rfkill_register(rfkill); if (err) { diff --git a/drivers/platform/x86/ibm_rtl.c b/drivers/platform/x86/ibm_rtl.c index b1396e5b295..811d436cd67 100644 --- a/drivers/platform/x86/ibm_rtl.c +++ b/drivers/platform/x86/ibm_rtl.c @@ -22,6 +22,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/delay.h> #include <linux/module.h> @@ -69,9 +71,10 @@ struct ibm_rtl_table { #define RTL_SIGNATURE 0x0000005f4c54525fULL #define RTL_MASK 0x000000ffffffffffULL -#define RTL_DEBUG(A, ...) do { \ - if (debug) \ - pr_info("ibm-rtl: " A, ##__VA_ARGS__ ); \ +#define RTL_DEBUG(fmt, ...) \ +do { \ + if (debug) \ + pr_info(fmt, ##__VA_ARGS__); \ } while (0) static DEFINE_MUTEX(rtl_lock); @@ -114,7 +117,7 @@ static int ibm_rtl_write(u8 value) int ret = 0, count = 0; static u32 cmd_port_val; - RTL_DEBUG("%s(%d)\n", __FUNCTION__, value); + RTL_DEBUG("%s(%d)\n", __func__, value); value = value == 1 ? RTL_CMD_ENTER_PRTM : RTL_CMD_EXIT_PRTM; @@ -144,8 +147,8 @@ static int ibm_rtl_write(u8 value) while (ioread8(&rtl_table->command)) { msleep(10); if (count++ > 500) { - pr_err("ibm-rtl: Hardware not responding to " - "mode switch request\n"); + pr_err("Hardware not responding to " + "mode switch request\n"); ret = -EIO; break; } @@ -250,7 +253,7 @@ static int __init ibm_rtl_init(void) { int ret = -ENODEV, i; if (force) - pr_warning("ibm-rtl: module loaded by force\n"); + pr_warn("module loaded by force\n"); /* first ensure that we are running on IBM HW */ else if (efi_enabled || !dmi_check_system(ibm_rtl_dmi_table)) return -ENODEV; @@ -288,19 +291,19 @@ static int __init ibm_rtl_init(void) { if ((readq(&tmp->signature) & RTL_MASK) == RTL_SIGNATURE) { phys_addr_t addr; unsigned int plen; - RTL_DEBUG("found RTL_SIGNATURE at %#llx\n", (u64)tmp); + RTL_DEBUG("found RTL_SIGNATURE at %p\n", tmp); rtl_table = tmp; /* The address, value, width and offset are platform * dependent and found in the ibm_rtl_table */ rtl_cmd_width = ioread8(&rtl_table->cmd_granularity); rtl_cmd_type = ioread8(&rtl_table->cmd_address_type); RTL_DEBUG("rtl_cmd_width = %u, rtl_cmd_type = %u\n", - rtl_cmd_width, rtl_cmd_type); + rtl_cmd_width, rtl_cmd_type); addr = ioread32(&rtl_table->cmd_port_address); RTL_DEBUG("addr = %#llx\n", (unsigned long long)addr); plen = rtl_cmd_width/sizeof(char); rtl_cmd_addr = rtl_port_map(addr, plen); - RTL_DEBUG("rtl_cmd_addr = %#llx\n", (u64)rtl_cmd_addr); + RTL_DEBUG("rtl_cmd_addr = %p\n", rtl_cmd_addr); if (!rtl_cmd_addr) { ret = -ENOMEM; break; diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index 21b101899ba..bfdda33feb2 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -20,6 +20,8 @@ * 02110-1301, USA. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> diff --git a/drivers/platform/x86/intel_menlow.c b/drivers/platform/x86/intel_menlow.c index eacd5da7dd2..809adea4965 100644 --- a/drivers/platform/x86/intel_menlow.c +++ b/drivers/platform/x86/intel_menlow.c @@ -27,6 +27,8 @@ * to get/set bandwidth. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> @@ -135,8 +137,7 @@ static int memory_set_cur_bandwidth(struct thermal_cooling_device *cdev, acpi_evaluate_integer(handle, MEMORY_SET_BANDWIDTH, &arg_list, &temp); - printk(KERN_INFO - "Bandwidth value was %ld: status is %d\n", state, status); + pr_info("Bandwidth value was %ld: status is %d\n", state, status); if (ACPI_FAILURE(status)) return -EFAULT; diff --git a/drivers/platform/x86/intel_mid_powerbtn.c b/drivers/platform/x86/intel_mid_powerbtn.c index 213e79ba68d..f1ae5078b7e 100644 --- a/drivers/platform/x86/intel_mid_powerbtn.c +++ b/drivers/platform/x86/intel_mid_powerbtn.c @@ -23,58 +23,48 @@ #include <linux/slab.h> #include <linux/platform_device.h> #include <linux/input.h> + #include <asm/intel_scu_ipc.h> #define DRIVER_NAME "msic_power_btn" -#define MSIC_IRQ_STAT 0x02 - #define MSIC_IRQ_PB (1 << 0) -#define MSIC_PB_CONFIG 0x3e #define MSIC_PB_STATUS 0x3f - #define MSIC_PB_LEVEL (1 << 3) /* 1 - release, 0 - press */ - -struct mfld_pb_priv { - struct input_dev *input; - unsigned int irq; -}; +#define MSIC_PB_LEVEL (1 << 3) /* 1 - release, 0 - press */ static irqreturn_t mfld_pb_isr(int irq, void *dev_id) { - struct mfld_pb_priv *priv = dev_id; + struct input_dev *input = dev_id; int ret; u8 pbstat; ret = intel_scu_ipc_ioread8(MSIC_PB_STATUS, &pbstat); - if (ret < 0) - return IRQ_HANDLED; - - input_event(priv->input, EV_KEY, KEY_POWER, !(pbstat & MSIC_PB_LEVEL)); - input_sync(priv->input); + if (ret < 0) { + dev_err(input->dev.parent, "Read error %d while reading" + " MSIC_PB_STATUS\n", ret); + } else { + input_event(input, EV_KEY, KEY_POWER, + !(pbstat & MSIC_PB_LEVEL)); + input_sync(input); + } return IRQ_HANDLED; } static int __devinit mfld_pb_probe(struct platform_device *pdev) { - struct mfld_pb_priv *priv; struct input_dev *input; - int irq; + int irq = platform_get_irq(pdev, 0); int error; - irq = platform_get_irq(pdev, 0); if (irq < 0) return -EINVAL; - priv = kzalloc(sizeof(struct mfld_pb_priv), GFP_KERNEL); input = input_allocate_device(); - if (!priv || !input) { - error = -ENOMEM; - goto err_free_mem; + if (!input) { + dev_err(&pdev->dev, "Input device allocation error\n"); + return -ENOMEM; } - priv->input = input; - priv->irq = irq; - input->name = pdev->name; input->phys = "power-button/input0"; input->id.bustype = BUS_HOST; @@ -82,42 +72,40 @@ static int __devinit mfld_pb_probe(struct platform_device *pdev) input_set_capability(input, EV_KEY, KEY_POWER); - error = request_threaded_irq(priv->irq, NULL, mfld_pb_isr, - 0, DRIVER_NAME, priv); + error = request_threaded_irq(irq, NULL, mfld_pb_isr, 0, + DRIVER_NAME, input); if (error) { - dev_err(&pdev->dev, - "unable to request irq %d for mfld power button\n", - irq); - goto err_free_mem; + dev_err(&pdev->dev, "Unable to request irq %d for mfld power" + "button\n", irq); + goto err_free_input; } error = input_register_device(input); if (error) { - dev_err(&pdev->dev, - "unable to register input dev, error %d\n", error); + dev_err(&pdev->dev, "Unable to register input dev, error " + "%d\n", error); goto err_free_irq; } - platform_set_drvdata(pdev, priv); + platform_set_drvdata(pdev, input); return 0; err_free_irq: - free_irq(priv->irq, priv); -err_free_mem: + free_irq(irq, input); +err_free_input: input_free_device(input); - kfree(priv); return error; } static int __devexit mfld_pb_remove(struct platform_device *pdev) { - struct mfld_pb_priv *priv = platform_get_drvdata(pdev); - - free_irq(priv->irq, priv); - input_unregister_device(priv->input); - kfree(priv); + struct input_dev *input = platform_get_drvdata(pdev); + int irq = platform_get_irq(pdev, 0); + free_irq(irq, input); + input_unregister_device(input); platform_set_drvdata(pdev, NULL); + return 0; } diff --git a/drivers/platform/x86/intel_mid_thermal.c b/drivers/platform/x86/intel_mid_thermal.c index c2f4bd8013b..3a578323122 100644 --- a/drivers/platform/x86/intel_mid_thermal.c +++ b/drivers/platform/x86/intel_mid_thermal.c @@ -37,49 +37,50 @@ #include <asm/intel_scu_ipc.h> /* Number of thermal sensors */ -#define MSIC_THERMAL_SENSORS 4 +#define MSIC_THERMAL_SENSORS 4 /* ADC1 - thermal registers */ -#define MSIC_THERM_ADC1CNTL1 0x1C0 -#define MSIC_ADC_ENBL 0x10 -#define MSIC_ADC_START 0x08 +#define MSIC_THERM_ADC1CNTL1 0x1C0 +#define MSIC_ADC_ENBL 0x10 +#define MSIC_ADC_START 0x08 -#define MSIC_THERM_ADC1CNTL3 0x1C2 -#define MSIC_ADCTHERM_ENBL 0x04 -#define MSIC_ADCRRDATA_ENBL 0x05 -#define MSIC_CHANL_MASK_VAL 0x0F +#define MSIC_THERM_ADC1CNTL3 0x1C2 +#define MSIC_ADCTHERM_ENBL 0x04 +#define MSIC_ADCRRDATA_ENBL 0x05 +#define MSIC_CHANL_MASK_VAL 0x0F -#define MSIC_STOPBIT_MASK 16 -#define MSIC_ADCTHERM_MASK 4 -#define ADC_CHANLS_MAX 15 /* Number of ADC channels */ -#define ADC_LOOP_MAX (ADC_CHANLS_MAX - MSIC_THERMAL_SENSORS) +#define MSIC_STOPBIT_MASK 16 +#define MSIC_ADCTHERM_MASK 4 +/* Number of ADC channels */ +#define ADC_CHANLS_MAX 15 +#define ADC_LOOP_MAX (ADC_CHANLS_MAX - MSIC_THERMAL_SENSORS) /* ADC channel code values */ -#define SKIN_SENSOR0_CODE 0x08 -#define SKIN_SENSOR1_CODE 0x09 -#define SYS_SENSOR_CODE 0x0A -#define MSIC_DIE_SENSOR_CODE 0x03 +#define SKIN_SENSOR0_CODE 0x08 +#define SKIN_SENSOR1_CODE 0x09 +#define SYS_SENSOR_CODE 0x0A +#define MSIC_DIE_SENSOR_CODE 0x03 -#define SKIN_THERM_SENSOR0 0 -#define SKIN_THERM_SENSOR1 1 -#define SYS_THERM_SENSOR2 2 -#define MSIC_DIE_THERM_SENSOR3 3 +#define SKIN_THERM_SENSOR0 0 +#define SKIN_THERM_SENSOR1 1 +#define SYS_THERM_SENSOR2 2 +#define MSIC_DIE_THERM_SENSOR3 3 /* ADC code range */ -#define ADC_MAX 977 -#define ADC_MIN 162 -#define ADC_VAL0C 887 -#define ADC_VAL20C 720 -#define ADC_VAL40C 508 -#define ADC_VAL60C 315 +#define ADC_MAX 977 +#define ADC_MIN 162 +#define ADC_VAL0C 887 +#define ADC_VAL20C 720 +#define ADC_VAL40C 508 +#define ADC_VAL60C 315 /* ADC base addresses */ -#define ADC_CHNL_START_ADDR 0x1C5 /* increments by 1 */ -#define ADC_DATA_START_ADDR 0x1D4 /* increments by 2 */ +#define ADC_CHNL_START_ADDR 0x1C5 /* increments by 1 */ +#define ADC_DATA_START_ADDR 0x1D4 /* increments by 2 */ /* MSIC die attributes */ -#define MSIC_DIE_ADC_MIN 488 -#define MSIC_DIE_ADC_MAX 1004 +#define MSIC_DIE_ADC_MIN 488 +#define MSIC_DIE_ADC_MAX 1004 /* This holds the address of the first free ADC channel, * among the 15 channels @@ -87,15 +88,15 @@ static int channel_index; struct platform_info { - struct platform_device *pdev; - struct thermal_zone_device *tzd[MSIC_THERMAL_SENSORS]; + struct platform_device *pdev; + struct thermal_zone_device *tzd[MSIC_THERMAL_SENSORS]; }; struct thermal_device_info { - unsigned int chnl_addr; - int direct; - /* This holds the current temperature in millidegree celsius */ - long curr_temp; + unsigned int chnl_addr; + int direct; + /* This holds the current temperature in millidegree celsius */ + long curr_temp; }; /** @@ -106,7 +107,7 @@ struct thermal_device_info { */ static int to_msic_die_temp(uint16_t adc_val) { - return (368 * (adc_val) / 1000) - 220; + return (368 * (adc_val) / 1000) - 220; } /** @@ -118,7 +119,7 @@ static int to_msic_die_temp(uint16_t adc_val) */ static int is_valid_adc(uint16_t adc_val, uint16_t min, uint16_t max) { - return (adc_val >= min) && (adc_val <= max); + return (adc_val >= min) && (adc_val <= max); } /** @@ -136,35 +137,35 @@ static int is_valid_adc(uint16_t adc_val, uint16_t min, uint16_t max) */ static int adc_to_temp(int direct, uint16_t adc_val, unsigned long *tp) { - int temp; - - /* Direct conversion for die temperature */ - if (direct) { - if (is_valid_adc(adc_val, MSIC_DIE_ADC_MIN, MSIC_DIE_ADC_MAX)) { - *tp = to_msic_die_temp(adc_val) * 1000; - return 0; - } - return -ERANGE; - } - - if (!is_valid_adc(adc_val, ADC_MIN, ADC_MAX)) - return -ERANGE; - - /* Linear approximation for skin temperature */ - if (adc_val > ADC_VAL0C) - temp = 177 - (adc_val/5); - else if ((adc_val <= ADC_VAL0C) && (adc_val > ADC_VAL20C)) - temp = 111 - (adc_val/8); - else if ((adc_val <= ADC_VAL20C) && (adc_val > ADC_VAL40C)) - temp = 92 - (adc_val/10); - else if ((adc_val <= ADC_VAL40C) && (adc_val > ADC_VAL60C)) - temp = 91 - (adc_val/10); - else - temp = 112 - (adc_val/6); - - /* Convert temperature in celsius to milli degree celsius */ - *tp = temp * 1000; - return 0; + int temp; + + /* Direct conversion for die temperature */ + if (direct) { + if (is_valid_adc(adc_val, MSIC_DIE_ADC_MIN, MSIC_DIE_ADC_MAX)) { + *tp = to_msic_die_temp(adc_val) * 1000; + return 0; + } + return -ERANGE; + } + + if (!is_valid_adc(adc_val, ADC_MIN, ADC_MAX)) + return -ERANGE; + + /* Linear approximation for skin temperature */ + if (adc_val > ADC_VAL0C) + temp = 177 - (adc_val/5); + else if ((adc_val <= ADC_VAL0C) && (adc_val > ADC_VAL20C)) + temp = 111 - (adc_val/8); + else if ((adc_val <= ADC_VAL20C) && (adc_val > ADC_VAL40C)) + temp = 92 - (adc_val/10); + else if ((adc_val <= ADC_VAL40C) && (adc_val > ADC_VAL60C)) + temp = 91 - (adc_val/10); + else + temp = 112 - (adc_val/6); + + /* Convert temperature in celsius to milli degree celsius */ + *tp = temp * 1000; + return 0; } /** @@ -178,47 +179,47 @@ static int adc_to_temp(int direct, uint16_t adc_val, unsigned long *tp) */ static int mid_read_temp(struct thermal_zone_device *tzd, unsigned long *temp) { - struct thermal_device_info *td_info = tzd->devdata; - uint16_t adc_val, addr; - uint8_t data = 0; - int ret; - unsigned long curr_temp; - - - addr = td_info->chnl_addr; - - /* Enable the msic for conversion before reading */ - ret = intel_scu_ipc_iowrite8(MSIC_THERM_ADC1CNTL3, MSIC_ADCRRDATA_ENBL); - if (ret) - return ret; - - /* Re-toggle the RRDATARD bit (temporary workaround) */ - ret = intel_scu_ipc_iowrite8(MSIC_THERM_ADC1CNTL3, MSIC_ADCTHERM_ENBL); - if (ret) - return ret; - - /* Read the higher bits of data */ - ret = intel_scu_ipc_ioread8(addr, &data); - if (ret) - return ret; - - /* Shift bits to accommodate the lower two data bits */ - adc_val = (data << 2); - addr++; - - ret = intel_scu_ipc_ioread8(addr, &data);/* Read lower bits */ - if (ret) - return ret; - - /* Adding lower two bits to the higher bits */ - data &= 03; - adc_val += data; - - /* Convert ADC value to temperature */ - ret = adc_to_temp(td_info->direct, adc_val, &curr_temp); - if (ret == 0) - *temp = td_info->curr_temp = curr_temp; - return ret; + struct thermal_device_info *td_info = tzd->devdata; + uint16_t adc_val, addr; + uint8_t data = 0; + int ret; + unsigned long curr_temp; + + + addr = td_info->chnl_addr; + + /* Enable the msic for conversion before reading */ + ret = intel_scu_ipc_iowrite8(MSIC_THERM_ADC1CNTL3, MSIC_ADCRRDATA_ENBL); + if (ret) + return ret; + + /* Re-toggle the RRDATARD bit (temporary workaround) */ + ret = intel_scu_ipc_iowrite8(MSIC_THERM_ADC1CNTL3, MSIC_ADCTHERM_ENBL); + if (ret) + return ret; + + /* Read the higher bits of data */ + ret = intel_scu_ipc_ioread8(addr, &data); + if (ret) + return ret; + + /* Shift bits to accommodate the lower two data bits */ + adc_val = (data << 2); + addr++; + + ret = intel_scu_ipc_ioread8(addr, &data);/* Read lower bits */ + if (ret) + return ret; + + /* Adding lower two bits to the higher bits */ + data &= 03; + adc_val += data; + + /* Convert ADC value to temperature */ + ret = adc_to_temp(td_info->direct, adc_val, &curr_temp); + if (ret == 0) + *temp = td_info->curr_temp = curr_temp; + return ret; } /** @@ -231,22 +232,21 @@ static int mid_read_temp(struct thermal_zone_device *tzd, unsigned long *temp) */ static int configure_adc(int val) { - int ret; - uint8_t data; - - ret = intel_scu_ipc_ioread8(MSIC_THERM_ADC1CNTL1, &data); - if (ret) - return ret; - - if (val) { - /* Enable and start the ADC */ - data |= (MSIC_ADC_ENBL | MSIC_ADC_START); - } else { - /* Just stop the ADC */ - data &= (~MSIC_ADC_START); - } - - return intel_scu_ipc_iowrite8(MSIC_THERM_ADC1CNTL1, data); + int ret; + uint8_t data; + + ret = intel_scu_ipc_ioread8(MSIC_THERM_ADC1CNTL1, &data); + if (ret) + return ret; + + if (val) { + /* Enable and start the ADC */ + data |= (MSIC_ADC_ENBL | MSIC_ADC_START); + } else { + /* Just stop the ADC */ + data &= (~MSIC_ADC_START); + } + return intel_scu_ipc_iowrite8(MSIC_THERM_ADC1CNTL1, data); } /** @@ -259,30 +259,30 @@ static int configure_adc(int val) */ static int set_up_therm_channel(u16 base_addr) { - int ret; - - /* Enable all the sensor channels */ - ret = intel_scu_ipc_iowrite8(base_addr, SKIN_SENSOR0_CODE); - if (ret) - return ret; - - ret = intel_scu_ipc_iowrite8(base_addr + 1, SKIN_SENSOR1_CODE); - if (ret) - return ret; - - ret = intel_scu_ipc_iowrite8(base_addr + 2, SYS_SENSOR_CODE); - if (ret) - return ret; - - /* Since this is the last channel, set the stop bit - to 1 by ORing the DIE_SENSOR_CODE with 0x10 */ - ret = intel_scu_ipc_iowrite8(base_addr + 3, - (MSIC_DIE_SENSOR_CODE | 0x10)); - if (ret) - return ret; - - /* Enable ADC and start it */ - return configure_adc(1); + int ret; + + /* Enable all the sensor channels */ + ret = intel_scu_ipc_iowrite8(base_addr, SKIN_SENSOR0_CODE); + if (ret) + return ret; + + ret = intel_scu_ipc_iowrite8(base_addr + 1, SKIN_SENSOR1_CODE); + if (ret) + return ret; + + ret = intel_scu_ipc_iowrite8(base_addr + 2, SYS_SENSOR_CODE); + if (ret) + return ret; + + /* Since this is the last channel, set the stop bit + * to 1 by ORing the DIE_SENSOR_CODE with 0x10 */ + ret = intel_scu_ipc_iowrite8(base_addr + 3, + (MSIC_DIE_SENSOR_CODE | 0x10)); + if (ret) + return ret; + + /* Enable ADC and start it */ + return configure_adc(1); } /** @@ -293,13 +293,13 @@ static int set_up_therm_channel(u16 base_addr) */ static int reset_stopbit(uint16_t addr) { - int ret; - uint8_t data; - ret = intel_scu_ipc_ioread8(addr, &data); - if (ret) - return ret; - /* Set the stop bit to zero */ - return intel_scu_ipc_iowrite8(addr, (data & 0xEF)); + int ret; + uint8_t data; + ret = intel_scu_ipc_ioread8(addr, &data); + if (ret) + return ret; + /* Set the stop bit to zero */ + return intel_scu_ipc_iowrite8(addr, (data & 0xEF)); } /** @@ -317,30 +317,30 @@ static int reset_stopbit(uint16_t addr) */ static int find_free_channel(void) { - int ret; - int i; - uint8_t data; - - /* check whether ADC is enabled */ - ret = intel_scu_ipc_ioread8(MSIC_THERM_ADC1CNTL1, &data); - if (ret) - return ret; - - if ((data & MSIC_ADC_ENBL) == 0) - return 0; - - /* ADC is already enabled; Looking for an empty channel */ - for (i = 0; i < ADC_CHANLS_MAX; i++) { - ret = intel_scu_ipc_ioread8(ADC_CHNL_START_ADDR + i, &data); - if (ret) - return ret; - - if (data & MSIC_STOPBIT_MASK) { - ret = i; - break; - } - } - return (ret > ADC_LOOP_MAX) ? (-EINVAL) : ret; + int ret; + int i; + uint8_t data; + + /* check whether ADC is enabled */ + ret = intel_scu_ipc_ioread8(MSIC_THERM_ADC1CNTL1, &data); + if (ret) + return ret; + + if ((data & MSIC_ADC_ENBL) == 0) + return 0; + + /* ADC is already enabled; Looking for an empty channel */ + for (i = 0; i < ADC_CHANLS_MAX; i++) { + ret = intel_scu_ipc_ioread8(ADC_CHNL_START_ADDR + i, &data); + if (ret) + return ret; + + if (data & MSIC_STOPBIT_MASK) { + ret = i; + break; + } + } + return (ret > ADC_LOOP_MAX) ? (-EINVAL) : ret; } /** @@ -351,48 +351,48 @@ static int find_free_channel(void) */ static int mid_initialize_adc(struct device *dev) { - u8 data; - u16 base_addr; - int ret; - - /* - * Ensure that adctherm is disabled before we - * initialize the ADC - */ - ret = intel_scu_ipc_ioread8(MSIC_THERM_ADC1CNTL3, &data); - if (ret) - return ret; - - if (data & MSIC_ADCTHERM_MASK) - dev_warn(dev, "ADCTHERM already set"); - - /* Index of the first channel in which the stop bit is set */ - channel_index = find_free_channel(); - if (channel_index < 0) { - dev_err(dev, "No free ADC channels"); - return channel_index; - } - - base_addr = ADC_CHNL_START_ADDR + channel_index; - - if (!(channel_index == 0 || channel_index == ADC_LOOP_MAX)) { - /* Reset stop bit for channels other than 0 and 12 */ - ret = reset_stopbit(base_addr); - if (ret) - return ret; - - /* Index of the first free channel */ - base_addr++; - channel_index++; - } - - ret = set_up_therm_channel(base_addr); - if (ret) { - dev_err(dev, "unable to enable ADC"); - return ret; - } - dev_dbg(dev, "ADC initialization successful"); - return ret; + u8 data; + u16 base_addr; + int ret; + + /* + * Ensure that adctherm is disabled before we + * initialize the ADC + */ + ret = intel_scu_ipc_ioread8(MSIC_THERM_ADC1CNTL3, &data); + if (ret) + return ret; + + if (data & MSIC_ADCTHERM_MASK) + dev_warn(dev, "ADCTHERM already set"); + + /* Index of the first channel in which the stop bit is set */ + channel_index = find_free_channel(); + if (channel_index < 0) { + dev_err(dev, "No free ADC channels"); + return channel_index; + } + + base_addr = ADC_CHNL_START_ADDR + channel_index; + + if (!(channel_index == 0 || channel_index == ADC_LOOP_MAX)) { + /* Reset stop bit for channels other than 0 and 12 */ + ret = reset_stopbit(base_addr); + if (ret) + return ret; + + /* Index of the first free channel */ + base_addr++; + channel_index++; + } + + ret = set_up_therm_channel(base_addr); + if (ret) { + dev_err(dev, "unable to enable ADC"); + return ret; + } + dev_dbg(dev, "ADC initialization successful"); + return ret; } /** @@ -403,18 +403,18 @@ static int mid_initialize_adc(struct device *dev) */ static struct thermal_device_info *initialize_sensor(int index) { - struct thermal_device_info *td_info = - kzalloc(sizeof(struct thermal_device_info), GFP_KERNEL); - - if (!td_info) - return NULL; - - /* Set the base addr of the channel for this sensor */ - td_info->chnl_addr = ADC_DATA_START_ADDR + 2 * (channel_index + index); - /* Sensor 3 is direct conversion */ - if (index == 3) - td_info->direct = 1; - return td_info; + struct thermal_device_info *td_info = + kzalloc(sizeof(struct thermal_device_info), GFP_KERNEL); + + if (!td_info) + return NULL; + + /* Set the base addr of the channel for this sensor */ + td_info->chnl_addr = ADC_DATA_START_ADDR + 2 * (channel_index + index); + /* Sensor 3 is direct conversion */ + if (index == 3) + td_info->direct = 1; + return td_info; } /** @@ -425,7 +425,7 @@ static struct thermal_device_info *initialize_sensor(int index) */ static int mid_thermal_resume(struct platform_device *pdev) { - return mid_initialize_adc(&pdev->dev); + return mid_initialize_adc(&pdev->dev); } /** @@ -437,12 +437,12 @@ static int mid_thermal_resume(struct platform_device *pdev) */ static int mid_thermal_suspend(struct platform_device *pdev, pm_message_t mesg) { - /* - * This just stops the ADC and does not disable it. - * temporary workaround until we have a generic ADC driver. - * If 0 is passed, it disables the ADC. - */ - return configure_adc(0); + /* + * This just stops the ADC and does not disable it. + * temporary workaround until we have a generic ADC driver. + * If 0 is passed, it disables the ADC. + */ + return configure_adc(0); } /** @@ -453,16 +453,15 @@ static int mid_thermal_suspend(struct platform_device *pdev, pm_message_t mesg) */ static int read_curr_temp(struct thermal_zone_device *tzd, unsigned long *temp) { - WARN_ON(tzd == NULL); - return mid_read_temp(tzd, temp); + WARN_ON(tzd == NULL); + return mid_read_temp(tzd, temp); } /* Can't be const */ static struct thermal_zone_device_ops tzd_ops = { - .get_temp = read_curr_temp, + .get_temp = read_curr_temp, }; - /** * mid_thermal_probe - mfld thermal initialize * @pdev: platform device structure @@ -472,46 +471,45 @@ static struct thermal_zone_device_ops tzd_ops = { */ static int mid_thermal_probe(struct platform_device *pdev) { - static char *name[MSIC_THERMAL_SENSORS] = { - "skin0", "skin1", "sys", "msicdie" - }; - - int ret; - int i; - struct platform_info *pinfo; - - pinfo = kzalloc(sizeof(struct platform_info), GFP_KERNEL); - if (!pinfo) - return -ENOMEM; - - /* Initializing the hardware */ - ret = mid_initialize_adc(&pdev->dev); - if (ret) { - dev_err(&pdev->dev, "ADC init failed"); - kfree(pinfo); - return ret; - } - - /* Register each sensor with the generic thermal framework*/ - for (i = 0; i < MSIC_THERMAL_SENSORS; i++) { - pinfo->tzd[i] = thermal_zone_device_register(name[i], - 0, initialize_sensor(i), - &tzd_ops, 0, 0, 0, 0); - if (IS_ERR(pinfo->tzd[i])) - goto reg_fail; - } - - pinfo->pdev = pdev; - platform_set_drvdata(pdev, pinfo); - return 0; + static char *name[MSIC_THERMAL_SENSORS] = { + "skin0", "skin1", "sys", "msicdie" + }; + + int ret; + int i; + struct platform_info *pinfo; + + pinfo = kzalloc(sizeof(struct platform_info), GFP_KERNEL); + if (!pinfo) + return -ENOMEM; + + /* Initializing the hardware */ + ret = mid_initialize_adc(&pdev->dev); + if (ret) { + dev_err(&pdev->dev, "ADC init failed"); + kfree(pinfo); + return ret; + } + + /* Register each sensor with the generic thermal framework*/ + for (i = 0; i < MSIC_THERMAL_SENSORS; i++) { + pinfo->tzd[i] = thermal_zone_device_register(name[i], + 0, initialize_sensor(i), &tzd_ops, 0, 0, 0, 0); + if (IS_ERR(pinfo->tzd[i])) + goto reg_fail; + } + + pinfo->pdev = pdev; + platform_set_drvdata(pdev, pinfo); + return 0; reg_fail: - ret = PTR_ERR(pinfo->tzd[i]); - while (--i >= 0) - thermal_zone_device_unregister(pinfo->tzd[i]); - configure_adc(0); - kfree(pinfo); - return ret; + ret = PTR_ERR(pinfo->tzd[i]); + while (--i >= 0) + thermal_zone_device_unregister(pinfo->tzd[i]); + configure_adc(0); + kfree(pinfo); + return ret; } /** @@ -523,49 +521,46 @@ reg_fail: */ static int mid_thermal_remove(struct platform_device *pdev) { - int i; - struct platform_info *pinfo = platform_get_drvdata(pdev); + int i; + struct platform_info *pinfo = platform_get_drvdata(pdev); - for (i = 0; i < MSIC_THERMAL_SENSORS; i++) - thermal_zone_device_unregister(pinfo->tzd[i]); + for (i = 0; i < MSIC_THERMAL_SENSORS; i++) + thermal_zone_device_unregister(pinfo->tzd[i]); - platform_set_drvdata(pdev, NULL); + kfree(pinfo); + platform_set_drvdata(pdev, NULL); - /* Stop the ADC */ - return configure_adc(0); + /* Stop the ADC */ + return configure_adc(0); } -/********************************************************************* - * Driver initialisation and finalization - *********************************************************************/ - #define DRIVER_NAME "msic_sensor" static const struct platform_device_id therm_id_table[] = { - { DRIVER_NAME, 1 }, - { } + { DRIVER_NAME, 1 }, + { } }; static struct platform_driver mid_thermal_driver = { - .driver = { - .name = DRIVER_NAME, - .owner = THIS_MODULE, - }, - .probe = mid_thermal_probe, - .suspend = mid_thermal_suspend, - .resume = mid_thermal_resume, - .remove = __devexit_p(mid_thermal_remove), - .id_table = therm_id_table, + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + }, + .probe = mid_thermal_probe, + .suspend = mid_thermal_suspend, + .resume = mid_thermal_resume, + .remove = __devexit_p(mid_thermal_remove), + .id_table = therm_id_table, }; static int __init mid_thermal_module_init(void) { - return platform_driver_register(&mid_thermal_driver); + return platform_driver_register(&mid_thermal_driver); } static void __exit mid_thermal_module_exit(void) { - platform_driver_unregister(&mid_thermal_driver); + platform_driver_unregister(&mid_thermal_driver); } module_init(mid_thermal_module_init); diff --git a/drivers/platform/x86/intel_oaktrail.c b/drivers/platform/x86/intel_oaktrail.c new file mode 100644 index 00000000000..e936364a609 --- /dev/null +++ b/drivers/platform/x86/intel_oaktrail.c @@ -0,0 +1,396 @@ +/* + * intel_oaktrail.c - Intel OakTrail Platform support. + * + * Copyright (C) 2010-2011 Intel Corporation + * Author: Yin Kangkai (kangkai.yin@intel.com) + * + * based on Compal driver, Copyright (C) 2008 Cezary Jackiewicz + * <cezary.jackiewicz (at) gmail.com>, based on MSI driver + * Copyright (C) 2006 Lennart Poettering <mzxreary (at) 0pointer (dot) de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * This driver does below things: + * 1. registers itself in the Linux backlight control in + * /sys/class/backlight/intel_oaktrail/ + * + * 2. registers in the rfkill subsystem here: /sys/class/rfkill/rfkillX/ + * for these components: wifi, bluetooth, wwan (3g), gps + * + * This driver might work on other products based on Oaktrail. If you + * want to try it you can pass force=1 as argument to the module which + * will force it to load even when the DMI data doesn't identify the + * product as compatible. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/acpi.h> +#include <linux/fb.h> +#include <linux/mutex.h> +#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/backlight.h> +#include <linux/platform_device.h> +#include <linux/dmi.h> +#include <linux/rfkill.h> +#include <acpi/acpi_bus.h> +#include <acpi/acpi_drivers.h> + + +#define DRIVER_NAME "intel_oaktrail" +#define DRIVER_VERSION "0.4ac1" + +/* + * This is the devices status address in EC space, and the control bits + * definition: + * + * (1 << 0): Camera enable/disable, RW. + * (1 << 1): Bluetooth enable/disable, RW. + * (1 << 2): GPS enable/disable, RW. + * (1 << 3): WiFi enable/disable, RW. + * (1 << 4): WWAN (3G) enable/disalbe, RW. + * (1 << 5): Touchscreen enable/disable, Read Only. + */ +#define OT_EC_DEVICE_STATE_ADDRESS 0xD6 + +#define OT_EC_CAMERA_MASK (1 << 0) +#define OT_EC_BT_MASK (1 << 1) +#define OT_EC_GPS_MASK (1 << 2) +#define OT_EC_WIFI_MASK (1 << 3) +#define OT_EC_WWAN_MASK (1 << 4) +#define OT_EC_TS_MASK (1 << 5) + +/* + * This is the address in EC space and commands used to control LCD backlight: + * + * Two steps needed to change the LCD backlight: + * 1. write the backlight percentage into OT_EC_BL_BRIGHTNESS_ADDRESS; + * 2. write OT_EC_BL_CONTROL_ON_DATA into OT_EC_BL_CONTROL_ADDRESS. + * + * To read the LCD back light, just read out the value from + * OT_EC_BL_BRIGHTNESS_ADDRESS. + * + * LCD backlight brightness range: 0 - 100 (OT_EC_BL_BRIGHTNESS_MAX) + */ +#define OT_EC_BL_BRIGHTNESS_ADDRESS 0x44 +#define OT_EC_BL_BRIGHTNESS_MAX 100 +#define OT_EC_BL_CONTROL_ADDRESS 0x3A +#define OT_EC_BL_CONTROL_ON_DATA 0x1A + + +static int force; +module_param(force, bool, 0); +MODULE_PARM_DESC(force, "Force driver load, ignore DMI data"); + +static struct platform_device *oaktrail_device; +static struct backlight_device *oaktrail_bl_device; +static struct rfkill *bt_rfkill; +static struct rfkill *gps_rfkill; +static struct rfkill *wifi_rfkill; +static struct rfkill *wwan_rfkill; + + +/* rfkill */ +static int oaktrail_rfkill_set(void *data, bool blocked) +{ + u8 value; + u8 result; + unsigned long radio = (unsigned long) data; + + ec_read(OT_EC_DEVICE_STATE_ADDRESS, &result); + + if (!blocked) + value = (u8) (result | radio); + else + value = (u8) (result & ~radio); + + ec_write(OT_EC_DEVICE_STATE_ADDRESS, value); + + return 0; +} + +static const struct rfkill_ops oaktrail_rfkill_ops = { + .set_block = oaktrail_rfkill_set, +}; + +static struct rfkill *oaktrail_rfkill_new(char *name, enum rfkill_type type, + unsigned long mask) +{ + struct rfkill *rfkill_dev; + u8 value; + int err; + + rfkill_dev = rfkill_alloc(name, &oaktrail_device->dev, type, + &oaktrail_rfkill_ops, (void *)mask); + if (!rfkill_dev) + return ERR_PTR(-ENOMEM); + + ec_read(OT_EC_DEVICE_STATE_ADDRESS, &value); + rfkill_init_sw_state(rfkill_dev, (value & mask) != 1); + + err = rfkill_register(rfkill_dev); + if (err) { + rfkill_destroy(rfkill_dev); + return ERR_PTR(err); + } + + return rfkill_dev; +} + +static inline void __oaktrail_rfkill_cleanup(struct rfkill *rf) +{ + if (rf) { + rfkill_unregister(rf); + rfkill_destroy(rf); + } +} + +static void oaktrail_rfkill_cleanup(void) +{ + __oaktrail_rfkill_cleanup(wifi_rfkill); + __oaktrail_rfkill_cleanup(bt_rfkill); + __oaktrail_rfkill_cleanup(gps_rfkill); + __oaktrail_rfkill_cleanup(wwan_rfkill); +} + +static int oaktrail_rfkill_init(void) +{ + int ret; + + wifi_rfkill = oaktrail_rfkill_new("oaktrail-wifi", + RFKILL_TYPE_WLAN, + OT_EC_WIFI_MASK); + if (IS_ERR(wifi_rfkill)) { + ret = PTR_ERR(wifi_rfkill); + wifi_rfkill = NULL; + goto cleanup; + } + + bt_rfkill = oaktrail_rfkill_new("oaktrail-bluetooth", + RFKILL_TYPE_BLUETOOTH, + OT_EC_BT_MASK); + if (IS_ERR(bt_rfkill)) { + ret = PTR_ERR(bt_rfkill); + bt_rfkill = NULL; + goto cleanup; + } + + gps_rfkill = oaktrail_rfkill_new("oaktrail-gps", + RFKILL_TYPE_GPS, + OT_EC_GPS_MASK); + if (IS_ERR(gps_rfkill)) { + ret = PTR_ERR(gps_rfkill); + gps_rfkill = NULL; + goto cleanup; + } + + wwan_rfkill = oaktrail_rfkill_new("oaktrail-wwan", + RFKILL_TYPE_WWAN, + OT_EC_WWAN_MASK); + if (IS_ERR(wwan_rfkill)) { + ret = PTR_ERR(wwan_rfkill); + wwan_rfkill = NULL; + goto cleanup; + } + + return 0; + +cleanup: + oaktrail_rfkill_cleanup(); + return ret; +} + + +/* backlight */ +static int get_backlight_brightness(struct backlight_device *b) +{ + u8 value; + ec_read(OT_EC_BL_BRIGHTNESS_ADDRESS, &value); + + return value; +} + +static int set_backlight_brightness(struct backlight_device *b) +{ + u8 percent = (u8) b->props.brightness; + if (percent < 0 || percent > OT_EC_BL_BRIGHTNESS_MAX) + return -EINVAL; + + ec_write(OT_EC_BL_BRIGHTNESS_ADDRESS, percent); + ec_write(OT_EC_BL_CONTROL_ADDRESS, OT_EC_BL_CONTROL_ON_DATA); + + return 0; +} + +static const struct backlight_ops oaktrail_bl_ops = { + .get_brightness = get_backlight_brightness, + .update_status = set_backlight_brightness, +}; + +static int oaktrail_backlight_init(void) +{ + struct backlight_device *bd; + struct backlight_properties props; + + memset(&props, 0, sizeof(struct backlight_properties)); + props.max_brightness = OT_EC_BL_BRIGHTNESS_MAX; + bd = backlight_device_register(DRIVER_NAME, + &oaktrail_device->dev, NULL, + &oaktrail_bl_ops, + &props); + + if (IS_ERR(bd)) { + oaktrail_bl_device = NULL; + pr_warning("Unable to register backlight device\n"); + return PTR_ERR(bd); + } + + oaktrail_bl_device = bd; + + bd->props.brightness = get_backlight_brightness(bd); + bd->props.power = FB_BLANK_UNBLANK; + backlight_update_status(bd); + + return 0; +} + +static void oaktrail_backlight_exit(void) +{ + if (oaktrail_bl_device) + backlight_device_unregister(oaktrail_bl_device); +} + +static int __devinit oaktrail_probe(struct platform_device *pdev) +{ + return 0; +} + +static int __devexit oaktrail_remove(struct platform_device *pdev) +{ + return 0; +} + +static struct platform_driver oaktrail_driver = { + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + }, + .probe = oaktrail_probe, + .remove = __devexit_p(oaktrail_remove) +}; + +static int dmi_check_cb(const struct dmi_system_id *id) +{ + pr_info("Identified model '%s'\n", id->ident); + return 0; +} + +static struct dmi_system_id __initdata oaktrail_dmi_table[] = { + { + .ident = "OakTrail platform", + .matches = { + DMI_MATCH(DMI_PRODUCT_NAME, "OakTrail platform"), + }, + .callback = dmi_check_cb + }, + { } +}; + +static int __init oaktrail_init(void) +{ + int ret; + + if (acpi_disabled) { + pr_err("ACPI needs to be enabled for this driver to work!\n"); + return -ENODEV; + } + + if (!force && !dmi_check_system(oaktrail_dmi_table)) { + pr_err("Platform not recognized (You could try the module's force-parameter)"); + return -ENODEV; + } + + ret = platform_driver_register(&oaktrail_driver); + if (ret) { + pr_warning("Unable to register platform driver\n"); + goto err_driver_reg; + } + + oaktrail_device = platform_device_alloc(DRIVER_NAME, -1); + if (!oaktrail_device) { + pr_warning("Unable to allocate platform device\n"); + ret = -ENOMEM; + goto err_device_alloc; + } + + ret = platform_device_add(oaktrail_device); + if (ret) { + pr_warning("Unable to add platform device\n"); + goto err_device_add; + } + + if (!acpi_video_backlight_support()) { + ret = oaktrail_backlight_init(); + if (ret) + goto err_backlight; + + } else + pr_info("Backlight controlled by ACPI video driver\n"); + + ret = oaktrail_rfkill_init(); + if (ret) { + pr_warning("Setup rfkill failed\n"); + goto err_rfkill; + } + + pr_info("Driver "DRIVER_VERSION" successfully loaded\n"); + return 0; + +err_rfkill: + oaktrail_backlight_exit(); +err_backlight: + platform_device_del(oaktrail_device); +err_device_add: + platform_device_put(oaktrail_device); +err_device_alloc: + platform_driver_unregister(&oaktrail_driver); +err_driver_reg: + + return ret; +} + +static void __exit oaktrail_cleanup(void) +{ + oaktrail_backlight_exit(); + oaktrail_rfkill_cleanup(); + platform_device_unregister(oaktrail_device); + platform_driver_unregister(&oaktrail_driver); + + pr_info("Driver unloaded\n"); +} + +module_init(oaktrail_init); +module_exit(oaktrail_cleanup); + +MODULE_AUTHOR("Yin Kangkai (kangkai.yin@intel.com)"); +MODULE_DESCRIPTION("Intel Oaktrail Platform ACPI Extras"); +MODULE_VERSION(DRIVER_VERSION); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("dmi:*:svnIntelCorporation:pnOakTrailplatform:*"); diff --git a/drivers/platform/x86/intel_pmic_gpio.c b/drivers/platform/x86/intel_pmic_gpio.c index 464bb3fc4d8..1686c1e07d5 100644 --- a/drivers/platform/x86/intel_pmic_gpio.c +++ b/drivers/platform/x86/intel_pmic_gpio.c @@ -19,6 +19,8 @@ * Moorestown platform PMIC chip */ +#define pr_fmt(fmt) "%s: " fmt, __func__ + #include <linux/module.h> #include <linux/kernel.h> #include <linux/interrupt.h> @@ -90,8 +92,7 @@ static void pmic_program_irqtype(int gpio, int type) static int pmic_gpio_direction_input(struct gpio_chip *chip, unsigned offset) { if (offset > 8) { - printk(KERN_ERR - "%s: only pin 0-7 support input\n", __func__); + pr_err("only pin 0-7 support input\n"); return -1;/* we only have 8 GPIO can use as input */ } return intel_scu_ipc_update_register(GPIO0 + offset, @@ -116,8 +117,7 @@ static int pmic_gpio_direction_output(struct gpio_chip *chip, value ? 1 << (offset - 16) : 0, 1 << (offset - 16)); else { - printk(KERN_ERR - "%s: invalid PMIC GPIO pin %d!\n", __func__, offset); + pr_err("invalid PMIC GPIO pin %d!\n", offset); WARN_ON(1); } @@ -260,7 +260,7 @@ static int __devinit platform_pmic_gpio_probe(struct platform_device *pdev) /* setting up SRAM mapping for GPIOINT register */ pg->gpiointr = ioremap_nocache(pdata->gpiointr, 8); if (!pg->gpiointr) { - printk(KERN_ERR "%s: Can not map GPIOINT.\n", __func__); + pr_err("Can not map GPIOINT\n"); retval = -EINVAL; goto err2; } @@ -281,13 +281,13 @@ static int __devinit platform_pmic_gpio_probe(struct platform_device *pdev) pg->chip.dev = dev; retval = gpiochip_add(&pg->chip); if (retval) { - printk(KERN_ERR "%s: Can not add pmic gpio chip.\n", __func__); + pr_err("Can not add pmic gpio chip\n"); goto err; } retval = request_irq(pg->irq, pmic_irq_handler, 0, "pmic", pg); if (retval) { - printk(KERN_WARNING "pmic: Interrupt request failed\n"); + pr_warn("Interrupt request failed\n"); goto err; } diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c index 23fb2afda00..3ff629df9f0 100644 --- a/drivers/platform/x86/msi-laptop.c +++ b/drivers/platform/x86/msi-laptop.c @@ -135,7 +135,7 @@ static int set_lcd_level(int level) buf[1] = (u8) (level*31); return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, buf, sizeof(buf), - NULL, 0, 1); + NULL, 0); } static int get_lcd_level(void) @@ -144,7 +144,7 @@ static int get_lcd_level(void) int result; result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1, - &rdata, 1, 1); + &rdata, 1); if (result < 0) return result; @@ -157,7 +157,7 @@ static int get_auto_brightness(void) int result; result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1, - &rdata, 1, 1); + &rdata, 1); if (result < 0) return result; @@ -172,7 +172,7 @@ static int set_auto_brightness(int enable) wdata[0] = 4; result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 1, - &rdata, 1, 1); + &rdata, 1); if (result < 0) return result; @@ -180,7 +180,7 @@ static int set_auto_brightness(int enable) wdata[1] = (rdata & 0xF7) | (enable ? 8 : 0); return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 2, - NULL, 0, 1); + NULL, 0); } static ssize_t set_device_state(const char *buf, size_t count, u8 mask) @@ -217,7 +217,7 @@ static int get_wireless_state(int *wlan, int *bluetooth) u8 wdata = 0, rdata; int result; - result = ec_transaction(MSI_EC_COMMAND_WIRELESS, &wdata, 1, &rdata, 1, 1); + result = ec_transaction(MSI_EC_COMMAND_WIRELESS, &wdata, 1, &rdata, 1); if (result < 0) return -1; @@ -447,7 +447,7 @@ static struct platform_device *msipf_device; static int dmi_check_cb(const struct dmi_system_id *id) { - pr_info("Identified laptop model '%s'.\n", id->ident); + pr_info("Identified laptop model '%s'\n", id->ident); return 1; } @@ -800,7 +800,7 @@ static void msi_laptop_input_destroy(void) input_unregister_device(msi_laptop_input_dev); } -static int load_scm_model_init(struct platform_device *sdev) +static int __init load_scm_model_init(struct platform_device *sdev) { u8 data; int result; @@ -875,8 +875,7 @@ static int __init msi_init(void) /* Register backlight stuff */ if (acpi_video_backlight_support()) { - pr_info("Brightness ignored, must be controlled " - "by ACPI video driver\n"); + pr_info("Brightness ignored, must be controlled by ACPI video driver\n"); } else { struct backlight_properties props; memset(&props, 0, sizeof(struct backlight_properties)); @@ -930,7 +929,7 @@ static int __init msi_init(void) if (auto_brightness != 2) set_auto_brightness(auto_brightness); - pr_info("driver "MSI_DRIVER_VERSION" successfully loaded.\n"); + pr_info("driver " MSI_DRIVER_VERSION " successfully loaded\n"); return 0; @@ -978,7 +977,7 @@ static void __exit msi_cleanup(void) if (auto_brightness != 2) set_auto_brightness(1); - pr_info("driver unloaded.\n"); + pr_info("driver unloaded\n"); } module_init(msi_init); diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c index d5419c9ec07..c832e3356cd 100644 --- a/drivers/platform/x86/msi-wmi.c +++ b/drivers/platform/x86/msi-wmi.c @@ -20,6 +20,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/kernel.h> #include <linux/input.h> @@ -36,13 +37,10 @@ MODULE_ALIAS("wmi:551A1F84-FBDD-4125-91DB-3EA8F44F1D45"); MODULE_ALIAS("wmi:B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2"); #define DRV_NAME "msi-wmi" -#define DRV_PFX DRV_NAME ": " #define MSIWMI_BIOS_GUID "551A1F84-FBDD-4125-91DB-3EA8F44F1D45" #define MSIWMI_EVENT_GUID "B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2" -#define dprintk(msg...) pr_debug(DRV_PFX msg) - #define SCANCODE_BASE 0xD0 #define MSI_WMI_BRIGHTNESSUP SCANCODE_BASE #define MSI_WMI_BRIGHTNESSDOWN (SCANCODE_BASE + 1) @@ -78,7 +76,7 @@ static int msi_wmi_query_block(int instance, int *ret) if (!obj || obj->type != ACPI_TYPE_INTEGER) { if (obj) { - printk(KERN_ERR DRV_PFX "query block returned object " + pr_err("query block returned object " "type: %d - buffer length:%d\n", obj->type, obj->type == ACPI_TYPE_BUFFER ? obj->buffer.length : 0); @@ -97,8 +95,8 @@ static int msi_wmi_set_block(int instance, int value) struct acpi_buffer input = { sizeof(int), &value }; - dprintk("Going to set block of instance: %d - value: %d\n", - instance, value); + pr_debug("Going to set block of instance: %d - value: %d\n", + instance, value); status = wmi_set_block(MSIWMI_BIOS_GUID, instance, &input); @@ -112,20 +110,19 @@ static int bl_get(struct backlight_device *bd) /* Instance 1 is "get backlight", cmp with DSDT */ err = msi_wmi_query_block(1, &ret); if (err) { - printk(KERN_ERR DRV_PFX "Could not query backlight: %d\n", err); + pr_err("Could not query backlight: %d\n", err); return -EINVAL; } - dprintk("Get: Query block returned: %d\n", ret); + pr_debug("Get: Query block returned: %d\n", ret); for (level = 0; level < ARRAY_SIZE(backlight_map); level++) { if (backlight_map[level] == ret) { - dprintk("Current backlight level: 0x%X - index: %d\n", - backlight_map[level], level); + pr_debug("Current backlight level: 0x%X - index: %d\n", + backlight_map[level], level); break; } } if (level == ARRAY_SIZE(backlight_map)) { - printk(KERN_ERR DRV_PFX "get: Invalid brightness value: 0x%X\n", - ret); + pr_err("get: Invalid brightness value: 0x%X\n", ret); return -EINVAL; } return level; @@ -156,7 +153,7 @@ static void msi_wmi_notify(u32 value, void *context) status = wmi_get_event_data(value, &response); if (status != AE_OK) { - printk(KERN_INFO DRV_PFX "bad event status 0x%x\n", status); + pr_info("bad event status 0x%x\n", status); return; } @@ -164,7 +161,7 @@ static void msi_wmi_notify(u32 value, void *context) if (obj && obj->type == ACPI_TYPE_INTEGER) { int eventcode = obj->integer.value; - dprintk("Eventcode: 0x%x\n", eventcode); + pr_debug("Eventcode: 0x%x\n", eventcode); key = sparse_keymap_entry_from_scancode(msi_wmi_input_dev, eventcode); if (key) { @@ -175,8 +172,8 @@ static void msi_wmi_notify(u32 value, void *context) /* Ignore event if the same event happened in a 50 ms timeframe -> Key press may result in 10-20 GPEs */ if (ktime_to_us(diff) < 1000 * 50) { - dprintk("Suppressed key event 0x%X - " - "Last press was %lld us ago\n", + pr_debug("Suppressed key event 0x%X - " + "Last press was %lld us ago\n", key->code, ktime_to_us(diff)); return; } @@ -187,17 +184,16 @@ static void msi_wmi_notify(u32 value, void *context) (!acpi_video_backlight_support() || (key->code != MSI_WMI_BRIGHTNESSUP && key->code != MSI_WMI_BRIGHTNESSDOWN))) { - dprintk("Send key: 0x%X - " - "Input layer keycode: %d\n", key->code, - key->keycode); + pr_debug("Send key: 0x%X - " + "Input layer keycode: %d\n", + key->code, key->keycode); sparse_keymap_report_entry(msi_wmi_input_dev, key, 1, true); } } else - printk(KERN_INFO "Unknown key pressed - %x\n", - eventcode); + pr_info("Unknown key pressed - %x\n", eventcode); } else - printk(KERN_INFO DRV_PFX "Unknown event received\n"); + pr_info("Unknown event received\n"); kfree(response.pointer); } @@ -238,8 +234,7 @@ static int __init msi_wmi_init(void) int err; if (!wmi_has_guid(MSIWMI_EVENT_GUID)) { - printk(KERN_ERR - "This machine doesn't have MSI-hotkeys through WMI\n"); + pr_err("This machine doesn't have MSI-hotkeys through WMI\n"); return -ENODEV; } err = wmi_install_notify_handler(MSIWMI_EVENT_GUID, @@ -270,7 +265,7 @@ static int __init msi_wmi_init(void) backlight->props.brightness = err; } - dprintk("Event handler installed\n"); + pr_debug("Event handler installed\n"); return 0; diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index 6fe8cd6e23b..bbd182e178c 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -42,6 +42,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/module.h> #include <linux/moduleparam.h> @@ -70,10 +72,10 @@ #include <linux/miscdevice.h> #endif -#define DRV_PFX "sony-laptop: " -#define dprintk(msg...) do { \ - if (debug) \ - pr_warn(DRV_PFX msg); \ +#define dprintk(fmt, ...) \ +do { \ + if (debug) \ + pr_warn(fmt, ##__VA_ARGS__); \ } while (0) #define SONY_LAPTOP_DRIVER_VERSION "0.6" @@ -418,7 +420,7 @@ static int sony_laptop_setup_input(struct acpi_device *acpi_device) error = kfifo_alloc(&sony_laptop_input.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL); if (error) { - pr_err(DRV_PFX "kfifo_alloc failed\n"); + pr_err("kfifo_alloc failed\n"); goto err_dec_users; } @@ -702,7 +704,7 @@ static int acpi_callgetfunc(acpi_handle handle, char *name, int *result) return 0; } - pr_warn(DRV_PFX "acpi_callreadfunc failed\n"); + pr_warn("acpi_callreadfunc failed\n"); return -1; } @@ -728,8 +730,7 @@ static int acpi_callsetfunc(acpi_handle handle, char *name, int value, if (status == AE_OK) { if (result != NULL) { if (out_obj.type != ACPI_TYPE_INTEGER) { - pr_warn(DRV_PFX "acpi_evaluate_object bad " - "return type\n"); + pr_warn("acpi_evaluate_object bad return type\n"); return -1; } *result = out_obj.integer.value; @@ -737,7 +738,7 @@ static int acpi_callsetfunc(acpi_handle handle, char *name, int value, return 0; } - pr_warn(DRV_PFX "acpi_evaluate_object failed\n"); + pr_warn("acpi_evaluate_object failed\n"); return -1; } @@ -961,7 +962,6 @@ static int sony_backlight_get_brightness(struct backlight_device *bd) static int sony_nc_get_brightness_ng(struct backlight_device *bd) { int result; - int *handle = (int *)bl_get_data(bd); struct sony_backlight_props *sdev = (struct sony_backlight_props *)bl_get_data(bd); @@ -973,7 +973,6 @@ static int sony_nc_get_brightness_ng(struct backlight_device *bd) static int sony_nc_update_status_ng(struct backlight_device *bd) { int value, result; - int *handle = (int *)bl_get_data(bd); struct sony_backlight_props *sdev = (struct sony_backlight_props *)bl_get_data(bd); @@ -1104,10 +1103,8 @@ static void sony_nc_notify(struct acpi_device *device, u32 event) } if (!key_event->data) - pr_info(DRV_PFX - "Unknown event: 0x%x 0x%x\n", - key_handle, - ev); + pr_info("Unknown event: 0x%x 0x%x\n", + key_handle, ev); else sony_laptop_report_input_event(ev); } @@ -1128,7 +1125,7 @@ static acpi_status sony_walk_callback(acpi_handle handle, u32 level, struct acpi_device_info *info; if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) { - pr_warn(DRV_PFX "method: name: %4.4s, args %X\n", + pr_warn("method: name: %4.4s, args %X\n", (char *)&info->name, info->param_count); kfree(info); @@ -1169,7 +1166,7 @@ static int sony_nc_resume(struct acpi_device *device) ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, item->value, NULL); if (ret < 0) { - pr_err(DRV_PFX "%s: %d\n", __func__, ret); + pr_err("%s: %d\n", __func__, ret); break; } } @@ -1336,12 +1333,12 @@ static void sony_nc_rfkill_setup(struct acpi_device *device) device_enum = (union acpi_object *) buffer.pointer; if (!device_enum) { - pr_err(DRV_PFX "No SN06 return object."); + pr_err("No SN06 return object\n"); goto out_no_enum; } if (device_enum->type != ACPI_TYPE_BUFFER) { - pr_err(DRV_PFX "Invalid SN06 return object 0x%.2x\n", - device_enum->type); + pr_err("Invalid SN06 return object 0x%.2x\n", + device_enum->type); goto out_no_enum; } @@ -1662,7 +1659,7 @@ static void sony_nc_backlight_setup(void) ops, &props); if (IS_ERR(sony_bl_props.dev)) { - pr_warn(DRV_PFX "unable to register backlight device\n"); + pr_warn("unable to register backlight device\n"); sony_bl_props.dev = NULL; } else sony_bl_props.dev->props.brightness = @@ -1682,8 +1679,7 @@ static int sony_nc_add(struct acpi_device *device) acpi_handle handle; struct sony_nc_value *item; - pr_info(DRV_PFX "%s v%s.\n", SONY_NC_DRIVER_NAME, - SONY_LAPTOP_DRIVER_VERSION); + pr_info("%s v%s\n", SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION); sony_nc_acpi_device = device; strcpy(acpi_device_class(device), "sony/hotkey"); @@ -1708,7 +1704,7 @@ static int sony_nc_add(struct acpi_device *device) sony_nc_acpi_handle, 1, sony_walk_callback, NULL, NULL, NULL); if (ACPI_FAILURE(status)) { - pr_warn(DRV_PFX "unable to walk acpi resources\n"); + pr_warn("unable to walk acpi resources\n"); result = -ENODEV; goto outpresent; } @@ -1736,13 +1732,12 @@ static int sony_nc_add(struct acpi_device *device) /* setup input devices and helper fifo */ result = sony_laptop_setup_input(device); if (result) { - pr_err(DRV_PFX "Unable to create input devices.\n"); + pr_err("Unable to create input devices\n"); goto outkbdbacklight; } if (acpi_video_backlight_support()) { - pr_info(DRV_PFX "brightness ignored, must be " - "controlled by ACPI video driver\n"); + pr_info("brightness ignored, must be controlled by ACPI video driver\n"); } else { sony_nc_backlight_setup(); } @@ -2265,9 +2260,9 @@ out: if (pcidev) pci_dev_put(pcidev); - pr_info(DRV_PFX "detected Type%d model\n", - dev->model == SONYPI_DEVICE_TYPE1 ? 1 : - dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3); + pr_info("detected Type%d model\n", + dev->model == SONYPI_DEVICE_TYPE1 ? 1 : + dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3); } /* camera tests and poweron/poweroff */ @@ -2313,7 +2308,7 @@ static int __sony_pic_camera_ready(void) static int __sony_pic_camera_off(void) { if (!camera) { - pr_warn(DRV_PFX "camera control not enabled\n"); + pr_warn("camera control not enabled\n"); return -ENODEV; } @@ -2333,7 +2328,7 @@ static int __sony_pic_camera_on(void) int i, j, x; if (!camera) { - pr_warn(DRV_PFX "camera control not enabled\n"); + pr_warn("camera control not enabled\n"); return -ENODEV; } @@ -2356,7 +2351,7 @@ static int __sony_pic_camera_on(void) } if (j == 0) { - pr_warn(DRV_PFX "failed to power on camera\n"); + pr_warn("failed to power on camera\n"); return -ENODEV; } @@ -2412,8 +2407,7 @@ int sony_pic_camera_command(int command, u8 value) ITERATIONS_SHORT); break; default: - pr_err(DRV_PFX "sony_pic_camera_command invalid: %d\n", - command); + pr_err("sony_pic_camera_command invalid: %d\n", command); break; } mutex_unlock(&spic_dev.lock); @@ -2819,7 +2813,7 @@ static int sonypi_compat_init(void) error = kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL); if (error) { - pr_err(DRV_PFX "kfifo_alloc failed\n"); + pr_err("kfifo_alloc failed\n"); return error; } @@ -2829,12 +2823,12 @@ static int sonypi_compat_init(void) sonypi_misc_device.minor = minor; error = misc_register(&sonypi_misc_device); if (error) { - pr_err(DRV_PFX "misc_register failed\n"); + pr_err("misc_register failed\n"); goto err_free_kfifo; } if (minor == -1) - pr_info(DRV_PFX "device allocated minor is %d\n", - sonypi_misc_device.minor); + pr_info("device allocated minor is %d\n", + sonypi_misc_device.minor); return 0; @@ -2893,8 +2887,8 @@ sony_pic_read_possible_resource(struct acpi_resource *resource, void *context) } for (i = 0; i < p->interrupt_count; i++) { if (!p->interrupts[i]) { - pr_warn(DRV_PFX "Invalid IRQ %d\n", - p->interrupts[i]); + pr_warn("Invalid IRQ %d\n", + p->interrupts[i]); continue; } interrupt = kzalloc(sizeof(*interrupt), @@ -2932,14 +2926,14 @@ sony_pic_read_possible_resource(struct acpi_resource *resource, void *context) ioport->io2.address_length); } else { - pr_err(DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n"); + pr_err("Unknown SPIC Type, more than 2 IO Ports\n"); return AE_ERROR; } return AE_OK; } default: dprintk("Resource %d isn't an IRQ nor an IO port\n", - resource->type); + resource->type); case ACPI_RESOURCE_TYPE_END_TAG: return AE_OK; @@ -2960,7 +2954,7 @@ static int sony_pic_possible_resources(struct acpi_device *device) dprintk("Evaluating _STA\n"); result = acpi_bus_get_status(device); if (result) { - pr_warn(DRV_PFX "Unable to read status\n"); + pr_warn("Unable to read status\n"); goto end; } @@ -2976,8 +2970,7 @@ static int sony_pic_possible_resources(struct acpi_device *device) status = acpi_walk_resources(device->handle, METHOD_NAME__PRS, sony_pic_read_possible_resource, &spic_dev); if (ACPI_FAILURE(status)) { - pr_warn(DRV_PFX "Failure evaluating %s\n", - METHOD_NAME__PRS); + pr_warn("Failure evaluating %s\n", METHOD_NAME__PRS); result = -ENODEV; } end: @@ -3090,7 +3083,7 @@ static int sony_pic_enable(struct acpi_device *device, /* check for total failure */ if (ACPI_FAILURE(status)) { - pr_err(DRV_PFX "Error evaluating _SRS\n"); + pr_err("Error evaluating _SRS\n"); result = -ENODEV; goto end; } @@ -3182,7 +3175,7 @@ static int sony_pic_remove(struct acpi_device *device, int type) struct sony_pic_irq *irq, *tmp_irq; if (sony_pic_disable(device)) { - pr_err(DRV_PFX "Couldn't disable device.\n"); + pr_err("Couldn't disable device\n"); return -ENXIO; } @@ -3222,8 +3215,7 @@ static int sony_pic_add(struct acpi_device *device) struct sony_pic_ioport *io, *tmp_io; struct sony_pic_irq *irq, *tmp_irq; - pr_info(DRV_PFX "%s v%s.\n", SONY_PIC_DRIVER_NAME, - SONY_LAPTOP_DRIVER_VERSION); + pr_info("%s v%s\n", SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION); spic_dev.acpi_dev = device; strcpy(acpi_device_class(device), "sony/hotkey"); @@ -3233,14 +3225,14 @@ static int sony_pic_add(struct acpi_device *device) /* read _PRS resources */ result = sony_pic_possible_resources(device); if (result) { - pr_err(DRV_PFX "Unable to read possible resources.\n"); + pr_err("Unable to read possible resources\n"); goto err_free_resources; } /* setup input devices and helper fifo */ result = sony_laptop_setup_input(device); if (result) { - pr_err(DRV_PFX "Unable to create input devices.\n"); + pr_err("Unable to create input devices\n"); goto err_free_resources; } @@ -3281,7 +3273,7 @@ static int sony_pic_add(struct acpi_device *device) } } if (!spic_dev.cur_ioport) { - pr_err(DRV_PFX "Failed to request_region.\n"); + pr_err("Failed to request_region\n"); result = -ENODEV; goto err_remove_compat; } @@ -3301,7 +3293,7 @@ static int sony_pic_add(struct acpi_device *device) } } if (!spic_dev.cur_irq) { - pr_err(DRV_PFX "Failed to request_irq.\n"); + pr_err("Failed to request_irq\n"); result = -ENODEV; goto err_release_region; } @@ -3309,7 +3301,7 @@ static int sony_pic_add(struct acpi_device *device) /* set resource status _SRS */ result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq); if (result) { - pr_err(DRV_PFX "Couldn't enable device.\n"); + pr_err("Couldn't enable device\n"); goto err_free_irq; } @@ -3418,7 +3410,7 @@ static int __init sony_laptop_init(void) if (!no_spic && dmi_check_system(sonypi_dmi_table)) { result = acpi_bus_register_driver(&sony_pic_driver); if (result) { - pr_err(DRV_PFX "Unable to register SPIC driver."); + pr_err("Unable to register SPIC driver\n"); goto out; } spic_drv_registered = 1; @@ -3426,7 +3418,7 @@ static int __init sony_laptop_init(void) result = acpi_bus_register_driver(&sony_nc_driver); if (result) { - pr_err(DRV_PFX "Unable to register SNC driver."); + pr_err("Unable to register SNC driver\n"); goto out_unregister_pic; } diff --git a/drivers/platform/x86/tc1100-wmi.c b/drivers/platform/x86/tc1100-wmi.c index 865ef78d6f1..e24f5ae475a 100644 --- a/drivers/platform/x86/tc1100-wmi.c +++ b/drivers/platform/x86/tc1100-wmi.c @@ -25,6 +25,8 @@ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> @@ -40,9 +42,6 @@ #define TC1100_INSTANCE_WIRELESS 1 #define TC1100_INSTANCE_JOGDIAL 2 -#define TC1100_LOGPREFIX "tc1100-wmi: " -#define TC1100_INFO KERN_INFO TC1100_LOGPREFIX - MODULE_AUTHOR("Jamey Hicks, Carlos Corbacho"); MODULE_DESCRIPTION("HP Compaq TC1100 Tablet WMI Extras"); MODULE_LICENSE("GPL"); @@ -264,7 +263,7 @@ static int __init tc1100_init(void) if (error) goto err_device_del; - printk(TC1100_INFO "HP Compaq TC1100 Tablet WMI Extras loaded\n"); + pr_info("HP Compaq TC1100 Tablet WMI Extras loaded\n"); return 0; err_device_del: diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 562fcf0dd2b..77f6e707a2a 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -21,6 +21,8 @@ * 02110-1301, USA. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #define TPACPI_VERSION "0.24" #define TPACPI_SYSFS_VERSION 0x020700 @@ -224,17 +226,6 @@ enum tpacpi_hkey_event_t { #define TPACPI_MAX_ACPI_ARGS 3 -/* printk headers */ -#define TPACPI_LOG TPACPI_FILE ": " -#define TPACPI_EMERG KERN_EMERG TPACPI_LOG -#define TPACPI_ALERT KERN_ALERT TPACPI_LOG -#define TPACPI_CRIT KERN_CRIT TPACPI_LOG -#define TPACPI_ERR KERN_ERR TPACPI_LOG -#define TPACPI_WARN KERN_WARNING TPACPI_LOG -#define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG -#define TPACPI_INFO KERN_INFO TPACPI_LOG -#define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG - /* Debugging printk groups */ #define TPACPI_DBG_ALL 0xffff #define TPACPI_DBG_DISCLOSETASK 0x8000 @@ -389,34 +380,36 @@ static int tpacpi_uwb_emulstate; * Debugging helpers */ -#define dbg_printk(a_dbg_level, format, arg...) \ - do { if (dbg_level & (a_dbg_level)) \ - printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); \ - } while (0) +#define dbg_printk(a_dbg_level, format, arg...) \ +do { \ + if (dbg_level & (a_dbg_level)) \ + printk(KERN_DEBUG pr_fmt("%s: " format), \ + __func__, ##arg); \ +} while (0) #ifdef CONFIG_THINKPAD_ACPI_DEBUG #define vdbg_printk dbg_printk static const char *str_supported(int is_supported); #else -#define vdbg_printk(a_dbg_level, format, arg...) \ - do { } while (0) +static inline const char *str_supported(int is_supported) { return ""; } +#define vdbg_printk(a_dbg_level, format, arg...) \ + no_printk(format, ##arg) #endif static void tpacpi_log_usertask(const char * const what) { - printk(TPACPI_DEBUG "%s: access by process with PID %d\n", - what, task_tgid_vnr(current)); + printk(KERN_DEBUG pr_fmt("%s: access by process with PID %d\n"), + what, task_tgid_vnr(current)); } -#define tpacpi_disclose_usertask(what, format, arg...) \ - do { \ - if (unlikely( \ - (dbg_level & TPACPI_DBG_DISCLOSETASK) && \ - (tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \ - printk(TPACPI_DEBUG "%s: PID %d: " format, \ - what, task_tgid_vnr(current), ## arg); \ - } \ - } while (0) +#define tpacpi_disclose_usertask(what, format, arg...) \ +do { \ + if (unlikely((dbg_level & TPACPI_DBG_DISCLOSETASK) && \ + (tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \ + printk(KERN_DEBUG pr_fmt("%s: PID %d: " format), \ + what, task_tgid_vnr(current), ## arg); \ + } \ +} while (0) /* * Quirk handling helpers @@ -535,15 +528,6 @@ TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ "HKEY", /* all others */ ); /* 570 */ -TPACPI_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */ - "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ - "\\_SB.PCI0.VID0", /* 770e */ - "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ - "\\_SB.PCI0.AGP.VGA", /* X100e and a few others */ - "\\_SB.PCI0.AGP.VID", /* all others */ - ); /* R30, R31 */ - - /************************************************************************* * ACPI helpers */ @@ -563,7 +547,7 @@ static int acpi_evalf(acpi_handle handle, int quiet; if (!*fmt) { - printk(TPACPI_ERR "acpi_evalf() called with empty format\n"); + pr_err("acpi_evalf() called with empty format\n"); return 0; } @@ -588,7 +572,7 @@ static int acpi_evalf(acpi_handle handle, break; /* add more types as needed */ default: - printk(TPACPI_ERR "acpi_evalf() called " + pr_err("acpi_evalf() called " "with invalid format character '%c'\n", c); va_end(ap); return 0; @@ -617,13 +601,13 @@ static int acpi_evalf(acpi_handle handle, break; /* add more types as needed */ default: - printk(TPACPI_ERR "acpi_evalf() called " + pr_err("acpi_evalf() called " "with invalid format character '%c'\n", res_type); return 0; } if (!success && !quiet) - printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %s\n", + pr_err("acpi_evalf(%s, %s, ...) failed: %s\n", method, fmt0, acpi_format_exception(status)); return success; @@ -767,8 +751,7 @@ static int __init setup_acpi_notify(struct ibm_struct *ibm) rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); if (rc < 0) { - printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n", - ibm->name, rc); + pr_err("acpi_bus_get_device(%s) failed: %d\n", ibm->name, rc); return -ENODEV; } @@ -781,12 +764,10 @@ static int __init setup_acpi_notify(struct ibm_struct *ibm) ibm->acpi->type, dispatch_acpi_notify, ibm); if (ACPI_FAILURE(status)) { if (status == AE_ALREADY_EXISTS) { - printk(TPACPI_NOTICE - "another device driver is already " - "handling %s events\n", ibm->name); + pr_notice("another device driver is already " + "handling %s events\n", ibm->name); } else { - printk(TPACPI_ERR - "acpi_install_notify_handler(%s) failed: %s\n", + pr_err("acpi_install_notify_handler(%s) failed: %s\n", ibm->name, acpi_format_exception(status)); } return -ENODEV; @@ -811,8 +792,7 @@ static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); if (!ibm->acpi->driver) { - printk(TPACPI_ERR - "failed to allocate memory for ibm->acpi->driver\n"); + pr_err("failed to allocate memory for ibm->acpi->driver\n"); return -ENOMEM; } @@ -823,7 +803,7 @@ static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) rc = acpi_bus_register_driver(ibm->acpi->driver); if (rc < 0) { - printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n", + pr_err("acpi_bus_register_driver(%s) failed: %d\n", ibm->name, rc); kfree(ibm->acpi->driver); ibm->acpi->driver = NULL; @@ -1081,15 +1061,14 @@ static int parse_strtoul(const char *buf, static void tpacpi_disable_brightness_delay(void) { if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0)) - printk(TPACPI_NOTICE - "ACPI backlight control delay disabled\n"); + pr_notice("ACPI backlight control delay disabled\n"); } static void printk_deprecated_attribute(const char * const what, const char * const details) { tpacpi_log_usertask("deprecated sysfs attribute"); - printk(TPACPI_WARN "WARNING: sysfs attribute %s is deprecated and " + pr_warn("WARNING: sysfs attribute %s is deprecated and " "will be removed. %s\n", what, details); } @@ -1264,8 +1243,7 @@ static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, &tpacpi_rfk_rfkill_ops, atp_rfk); if (!atp_rfk || !atp_rfk->rfkill) { - printk(TPACPI_ERR - "failed to allocate memory for rfkill class\n"); + pr_err("failed to allocate memory for rfkill class\n"); kfree(atp_rfk); return -ENOMEM; } @@ -1275,9 +1253,8 @@ static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, sw_status = (tp_rfkops->get_status)(); if (sw_status < 0) { - printk(TPACPI_ERR - "failed to read initial state for %s, error %d\n", - name, sw_status); + pr_err("failed to read initial state for %s, error %d\n", + name, sw_status); } else { sw_state = (sw_status == TPACPI_RFK_RADIO_OFF); if (set_default) { @@ -1291,9 +1268,7 @@ static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, res = rfkill_register(atp_rfk->rfkill); if (res < 0) { - printk(TPACPI_ERR - "failed to register %s rfkill switch: %d\n", - name, res); + pr_err("failed to register %s rfkill switch: %d\n", name, res); rfkill_destroy(atp_rfk->rfkill); kfree(atp_rfk); return res; @@ -1301,7 +1276,7 @@ static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, tpacpi_rfkill_switches[id] = atp_rfk; - printk(TPACPI_INFO "rfkill switch %s: radio is %sblocked\n", + pr_info("rfkill switch %s: radio is %sblocked\n", name, (sw_state || hw_state) ? "" : "un"); return 0; } @@ -1825,10 +1800,8 @@ static void __init tpacpi_check_outdated_fw(void) * broken, or really stable to begin with, so it is * best if the user upgrades the firmware anyway. */ - printk(TPACPI_WARN - "WARNING: Outdated ThinkPad BIOS/EC firmware\n"); - printk(TPACPI_WARN - "WARNING: This firmware may be missing critical bug " + pr_warn("WARNING: Outdated ThinkPad BIOS/EC firmware\n"); + pr_warn("WARNING: This firmware may be missing critical bug " "fixes and/or important features\n"); } } @@ -2117,9 +2090,7 @@ void static hotkey_mask_warn_incomplete_mask(void) (hotkey_all_mask | TPACPI_HKEY_NVRAM_KNOWN_MASK); if (wantedmask) - printk(TPACPI_NOTICE - "required events 0x%08x not enabled!\n", - wantedmask); + pr_notice("required events 0x%08x not enabled!\n", wantedmask); } /* @@ -2157,10 +2128,9 @@ static int hotkey_mask_set(u32 mask) * a given event. */ if (!hotkey_mask_get() && !rc && (fwmask & ~hotkey_acpi_mask)) { - printk(TPACPI_NOTICE - "asked for hotkey mask 0x%08x, but " - "firmware forced it to 0x%08x\n", - fwmask, hotkey_acpi_mask); + pr_notice("asked for hotkey mask 0x%08x, but " + "firmware forced it to 0x%08x\n", + fwmask, hotkey_acpi_mask); } if (tpacpi_lifecycle != TPACPI_LIFE_EXITING) @@ -2184,13 +2154,11 @@ static int hotkey_user_mask_set(const u32 mask) (mask == 0xffff || mask == 0xffffff || mask == 0xffffffff)) { tp_warned.hotkey_mask_ff = 1; - printk(TPACPI_NOTICE - "setting the hotkey mask to 0x%08x is likely " - "not the best way to go about it\n", mask); - printk(TPACPI_NOTICE - "please consider using the driver defaults, " - "and refer to up-to-date thinkpad-acpi " - "documentation\n"); + pr_notice("setting the hotkey mask to 0x%08x is likely " + "not the best way to go about it\n", mask); + pr_notice("please consider using the driver defaults, " + "and refer to up-to-date thinkpad-acpi " + "documentation\n"); } /* Try to enable what the user asked for, plus whatever we need. @@ -2574,8 +2542,7 @@ static void hotkey_poll_setup(const bool may_warn) NULL, TPACPI_NVRAM_KTHREAD_NAME); if (IS_ERR(tpacpi_hotkey_task)) { tpacpi_hotkey_task = NULL; - printk(TPACPI_ERR - "could not create kernel thread " + pr_err("could not create kernel thread " "for hotkey polling\n"); } } @@ -2583,11 +2550,10 @@ static void hotkey_poll_setup(const bool may_warn) hotkey_poll_stop_sync(); if (may_warn && (poll_driver_mask || poll_user_mask) && hotkey_poll_freq == 0) { - printk(TPACPI_NOTICE - "hot keys 0x%08x and/or events 0x%08x " - "require polling, which is currently " - "disabled\n", - poll_user_mask, poll_driver_mask); + pr_notice("hot keys 0x%08x and/or events 0x%08x " + "require polling, which is currently " + "disabled\n", + poll_user_mask, poll_driver_mask); } } } @@ -2811,13 +2777,13 @@ static ssize_t hotkey_source_mask_store(struct device *dev, mutex_unlock(&hotkey_mutex); if (rc < 0) - printk(TPACPI_ERR "hotkey_source_mask: failed to update the" - "firmware event mask!\n"); + pr_err("hotkey_source_mask: " + "failed to update the firmware event mask!\n"); if (r_ev) - printk(TPACPI_NOTICE "hotkey_source_mask: " - "some important events were disabled: " - "0x%04x\n", r_ev); + pr_notice("hotkey_source_mask: " + "some important events were disabled: 0x%04x\n", + r_ev); tpacpi_disclose_usertask("hotkey_source_mask", "set to 0x%08lx\n", t); @@ -3048,8 +3014,7 @@ static void hotkey_exit(void) if (((tp_features.hotkey_mask && hotkey_mask_set(hotkey_orig_mask)) | hotkey_status_set(false)) != 0) - printk(TPACPI_ERR - "failed to restore hot key mask " + pr_err("failed to restore hot key mask " "to BIOS defaults\n"); } @@ -3288,10 +3253,9 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) for HKEY interface version 0x100 */ if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { if ((hkeyv >> 8) != 1) { - printk(TPACPI_ERR "unknown version of the " - "HKEY interface: 0x%x\n", hkeyv); - printk(TPACPI_ERR "please report this to %s\n", - TPACPI_MAIL); + pr_err("unknown version of the HKEY interface: 0x%x\n", + hkeyv); + pr_err("please report this to %s\n", TPACPI_MAIL); } else { /* * MHKV 0x100 in A31, R40, R40e, @@ -3304,8 +3268,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) /* Paranoia check AND init hotkey_all_mask */ if (!acpi_evalf(hkey_handle, &hotkey_all_mask, "MHKA", "qd")) { - printk(TPACPI_ERR - "missing MHKA handler, " + pr_err("missing MHKA handler, " "please report this to %s\n", TPACPI_MAIL); /* Fallback: pre-init for FN+F3,F4,F12 */ @@ -3343,16 +3306,14 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) if (dbg_wlswemul) { tp_features.hotkey_wlsw = 1; radiosw_state = !!tpacpi_wlsw_emulstate; - printk(TPACPI_INFO - "radio switch emulation enabled\n"); + pr_info("radio switch emulation enabled\n"); } else #endif /* Not all thinkpads have a hardware radio switch */ if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { tp_features.hotkey_wlsw = 1; radiosw_state = !!status; - printk(TPACPI_INFO - "radio switch found; radios are %s\n", + pr_info("radio switch found; radios are %s\n", enabled(status, 0)); } if (tp_features.hotkey_wlsw) @@ -3363,8 +3324,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { tp_features.hotkey_tablet = 1; tabletsw_state = !!(status & TP_HOTKEY_TABLET_MASK); - printk(TPACPI_INFO - "possible tablet mode switch found; " + pr_info("possible tablet mode switch found; " "ThinkPad in %s mode\n", (tabletsw_state) ? "tablet" : "laptop"); res = add_to_attr_set(hotkey_dev_attributes, @@ -3382,8 +3342,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE, GFP_KERNEL); if (!hotkey_keycode_map) { - printk(TPACPI_ERR - "failed to allocate memory for key map\n"); + pr_err("failed to allocate memory for key map\n"); res = -ENOMEM; goto err_exit; } @@ -3426,13 +3385,11 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) * userspace. tpacpi_detect_brightness_capabilities() must have * been called before this point */ if (tp_features.bright_acpimode && acpi_video_backlight_support()) { - printk(TPACPI_INFO - "This ThinkPad has standard ACPI backlight " - "brightness control, supported by the ACPI " - "video driver\n"); - printk(TPACPI_NOTICE - "Disabling thinkpad-acpi brightness events " - "by default...\n"); + pr_info("This ThinkPad has standard ACPI backlight " + "brightness control, supported by the ACPI " + "video driver\n"); + pr_notice("Disabling thinkpad-acpi brightness events " + "by default...\n"); /* Disable brightness up/down on Lenovo thinkpads when * ACPI is handling them, otherwise it is plain impossible @@ -3539,8 +3496,7 @@ static bool hotkey_notify_wakeup(const u32 hkey, case TP_HKEY_EV_WKUP_S3_BATLOW: /* Battery on critical low level/S3 */ case TP_HKEY_EV_WKUP_S4_BATLOW: /* Battery on critical low level/S4 */ - printk(TPACPI_ALERT - "EMERGENCY WAKEUP: battery almost empty\n"); + pr_alert("EMERGENCY WAKEUP: battery almost empty\n"); /* how to auto-heal: */ /* 2313: woke up from S3, go to S4/S5 */ /* 2413: woke up from S4, go to S5 */ @@ -3551,9 +3507,7 @@ static bool hotkey_notify_wakeup(const u32 hkey, } if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { - printk(TPACPI_INFO - "woke up due to a hot-unplug " - "request...\n"); + pr_info("woke up due to a hot-unplug request...\n"); hotkey_wakeup_reason_notify_change(); } return true; @@ -3605,37 +3559,31 @@ static bool hotkey_notify_thermal(const u32 hkey, switch (hkey) { case TP_HKEY_EV_THM_TABLE_CHANGED: - printk(TPACPI_INFO - "EC reports that Thermal Table has changed\n"); + pr_info("EC reports that Thermal Table has changed\n"); /* recommended action: do nothing, we don't have * Lenovo ATM information */ return true; case TP_HKEY_EV_ALARM_BAT_HOT: - printk(TPACPI_CRIT - "THERMAL ALARM: battery is too hot!\n"); + pr_crit("THERMAL ALARM: battery is too hot!\n"); /* recommended action: warn user through gui */ break; case TP_HKEY_EV_ALARM_BAT_XHOT: - printk(TPACPI_ALERT - "THERMAL EMERGENCY: battery is extremely hot!\n"); + pr_alert("THERMAL EMERGENCY: battery is extremely hot!\n"); /* recommended action: immediate sleep/hibernate */ break; case TP_HKEY_EV_ALARM_SENSOR_HOT: - printk(TPACPI_CRIT - "THERMAL ALARM: " + pr_crit("THERMAL ALARM: " "a sensor reports something is too hot!\n"); /* recommended action: warn user through gui, that */ /* some internal component is too hot */ break; case TP_HKEY_EV_ALARM_SENSOR_XHOT: - printk(TPACPI_ALERT - "THERMAL EMERGENCY: " - "a sensor reports something is extremely hot!\n"); + pr_alert("THERMAL EMERGENCY: " + "a sensor reports something is extremely hot!\n"); /* recommended action: immediate sleep/hibernate */ break; default: - printk(TPACPI_ALERT - "THERMAL ALERT: unknown thermal alarm received\n"); + pr_alert("THERMAL ALERT: unknown thermal alarm received\n"); known = false; } @@ -3652,8 +3600,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event) bool known_ev; if (event != 0x80) { - printk(TPACPI_ERR - "unknown HKEY notification event %d\n", event); + pr_err("unknown HKEY notification event %d\n", event); /* forward it to userspace, maybe it knows how to handle it */ acpi_bus_generate_netlink_event( ibm->acpi->device->pnp.device_class, @@ -3664,7 +3611,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event) while (1) { if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { - printk(TPACPI_ERR "failed to retrieve HKEY event\n"); + pr_err("failed to retrieve HKEY event\n"); return; } @@ -3692,8 +3639,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event) switch (hkey) { case TP_HKEY_EV_BAYEJ_ACK: hotkey_autosleep_ack = 1; - printk(TPACPI_INFO - "bay ejected\n"); + pr_info("bay ejected\n"); hotkey_wakeup_hotunplug_complete_notify_change(); known_ev = true; break; @@ -3709,8 +3655,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event) /* 0x4000-0x4FFF: dock-related wakeups */ if (hkey == TP_HKEY_EV_UNDOCK_ACK) { hotkey_autosleep_ack = 1; - printk(TPACPI_INFO - "undocked\n"); + pr_info("undocked\n"); hotkey_wakeup_hotunplug_complete_notify_change(); known_ev = true; } else { @@ -3741,11 +3686,9 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event) known_ev = false; } if (!known_ev) { - printk(TPACPI_NOTICE - "unhandled HKEY event 0x%04x\n", hkey); - printk(TPACPI_NOTICE - "please report the conditions when this " - "event happened to %s\n", TPACPI_MAIL); + pr_notice("unhandled HKEY event 0x%04x\n", hkey); + pr_notice("please report the conditions when this " + "event happened to %s\n", TPACPI_MAIL); } /* Legacy events */ @@ -3778,8 +3721,7 @@ static void hotkey_resume(void) if (hotkey_status_set(true) < 0 || hotkey_mask_set(hotkey_acpi_mask) < 0) - printk(TPACPI_ERR - "error while attempting to reset the event " + pr_err("error while attempting to reset the event " "firmware interface\n"); tpacpi_send_radiosw_update(); @@ -3824,14 +3766,12 @@ static void hotkey_enabledisable_warn(bool enable) { tpacpi_log_usertask("procfs hotkey enable/disable"); if (!WARN((tpacpi_lifecycle == TPACPI_LIFE_RUNNING || !enable), - TPACPI_WARN - "hotkey enable/disable functionality has been " - "removed from the driver. Hotkeys are always " - "enabled\n")) - printk(TPACPI_ERR - "Please remove the hotkey=enable module " - "parameter, it is deprecated. Hotkeys are always " - "enabled\n"); + pr_fmt("hotkey enable/disable functionality has been " + "removed from the driver. " + "Hotkeys are always enabled.\n"))) + pr_err("Please remove the hotkey=enable module " + "parameter, it is deprecated. " + "Hotkeys are always enabled.\n"); } static int hotkey_write(char *buf) @@ -4011,8 +3951,7 @@ static void bluetooth_shutdown(void) /* Order firmware to save current state to NVRAM */ if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", TP_ACPI_BLTH_SAVE_STATE)) - printk(TPACPI_NOTICE - "failed to save bluetooth state to NVRAM\n"); + pr_notice("failed to save bluetooth state to NVRAM\n"); else vdbg_printk(TPACPI_DBG_RFKILL, "bluestooth state saved to NVRAM\n"); @@ -4051,8 +3990,7 @@ static int __init bluetooth_init(struct ibm_init_struct *iibm) #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES if (dbg_bluetoothemul) { tp_features.bluetooth = 1; - printk(TPACPI_INFO - "bluetooth switch emulation enabled\n"); + pr_info("bluetooth switch emulation enabled\n"); } else #endif if (tp_features.bluetooth && @@ -4203,8 +4141,7 @@ static void wan_shutdown(void) /* Order firmware to save current state to NVRAM */ if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd", TP_ACPI_WGSV_SAVE_STATE)) - printk(TPACPI_NOTICE - "failed to save WWAN state to NVRAM\n"); + pr_notice("failed to save WWAN state to NVRAM\n"); else vdbg_printk(TPACPI_DBG_RFKILL, "WWAN state saved to NVRAM\n"); @@ -4241,8 +4178,7 @@ static int __init wan_init(struct ibm_init_struct *iibm) #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES if (dbg_wwanemul) { tp_features.wan = 1; - printk(TPACPI_INFO - "wwan switch emulation enabled\n"); + pr_info("wwan switch emulation enabled\n"); } else #endif if (tp_features.wan && @@ -4382,8 +4318,7 @@ static int __init uwb_init(struct ibm_init_struct *iibm) #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES if (dbg_uwbemul) { tp_features.uwb = 1; - printk(TPACPI_INFO - "uwb switch emulation enabled\n"); + pr_info("uwb switch emulation enabled\n"); } else #endif if (tp_features.uwb && @@ -4444,6 +4379,15 @@ static int video_orig_autosw; static int video_autosw_get(void); static int video_autosw_set(int enable); +TPACPI_HANDLE(vid, root, + "\\_SB.PCI.AGP.VGA", /* 570 */ + "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ + "\\_SB.PCI0.VID0", /* 770e */ + "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ + "\\_SB.PCI0.AGP.VGA", /* X100e and a few others */ + "\\_SB.PCI0.AGP.VID", /* all others */ + ); /* R30, R31 */ + TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ static int __init video_init(struct ibm_init_struct *iibm) @@ -4487,7 +4431,7 @@ static void video_exit(void) dbg_printk(TPACPI_DBG_EXIT, "restoring original video autoswitch mode\n"); if (video_autosw_set(video_orig_autosw)) - printk(TPACPI_ERR "error while trying to restore original " + pr_err("error while trying to restore original " "video autoswitch mode\n"); } @@ -4560,8 +4504,7 @@ static int video_outputsw_set(int status) res = acpi_evalf(vid_handle, NULL, "ASWT", "vdd", status * 0x100, 0); if (!autosw && video_autosw_set(autosw)) { - printk(TPACPI_ERR - "video auto-switch left enabled due to error\n"); + pr_err("video auto-switch left enabled due to error\n"); return -EIO; } break; @@ -4630,8 +4573,7 @@ static int video_outputsw_cycle(void) return -ENOSYS; } if (!autosw && video_autosw_set(autosw)) { - printk(TPACPI_ERR - "video auto-switch left enabled due to error\n"); + pr_err("video auto-switch left enabled due to error\n"); return -EIO; } @@ -5348,7 +5290,7 @@ static int __init led_init(struct ibm_init_struct *iibm) tpacpi_leds = kzalloc(sizeof(*tpacpi_leds) * TPACPI_LED_NUMLEDS, GFP_KERNEL); if (!tpacpi_leds) { - printk(TPACPI_ERR "Out of memory for LED data\n"); + pr_err("Out of memory for LED data\n"); return -ENOMEM; } @@ -5367,9 +5309,8 @@ static int __init led_init(struct ibm_init_struct *iibm) } #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS - printk(TPACPI_NOTICE - "warning: userspace override of important " - "firmware LEDs is enabled\n"); + pr_notice("warning: userspace override of important " + "firmware LEDs is enabled\n"); #endif return 0; } @@ -5639,17 +5580,16 @@ static void thermal_dump_all_sensors(void) if (n <= 0) return; - printk(TPACPI_NOTICE - "temperatures (Celsius):"); + pr_notice("temperatures (Celsius):"); for (i = 0; i < n; i++) { if (t.temp[i] != TPACPI_THERMAL_SENSOR_NA) - printk(KERN_CONT " %d", (int)(t.temp[i] / 1000)); + pr_cont(" %d", (int)(t.temp[i] / 1000)); else - printk(KERN_CONT " N/A"); + pr_cont(" N/A"); } - printk(KERN_CONT "\n"); + pr_cont("\n"); } /* sysfs temp##_input -------------------------------------------------- */ @@ -5769,14 +5709,12 @@ static int __init thermal_init(struct ibm_init_struct *iibm) if (ta1 == 0) { /* This is sheer paranoia, but we handle it anyway */ if (acpi_tmp7) { - printk(TPACPI_ERR - "ThinkPad ACPI EC access misbehaving, " + pr_err("ThinkPad ACPI EC access misbehaving, " "falling back to ACPI TMPx access " "mode\n"); thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; } else { - printk(TPACPI_ERR - "ThinkPad ACPI EC access misbehaving, " + pr_err("ThinkPad ACPI EC access misbehaving, " "disabling thermal sensors access\n"); thermal_read_mode = TPACPI_THERMAL_NONE; } @@ -6129,8 +6067,8 @@ static int __init tpacpi_query_bcl_levels(acpi_handle handle) if (ACPI_SUCCESS(acpi_evaluate_object(handle, "_BCL", NULL, &buffer))) { obj = (union acpi_object *)buffer.pointer; if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { - printk(TPACPI_ERR "Unknown _BCL data, " - "please report this to %s\n", TPACPI_MAIL); + pr_err("Unknown _BCL data, please report this to %s\n", + TPACPI_MAIL); rc = 0; } else { rc = obj->package.count; @@ -6214,18 +6152,15 @@ static void __init tpacpi_detect_brightness_capabilities(void) switch (b) { case 16: bright_maxlvl = 15; - printk(TPACPI_INFO - "detected a 16-level brightness capable ThinkPad\n"); + pr_info("detected a 16-level brightness capable ThinkPad\n"); break; case 8: case 0: bright_maxlvl = 7; - printk(TPACPI_INFO - "detected a 8-level brightness capable ThinkPad\n"); + pr_info("detected a 8-level brightness capable ThinkPad\n"); break; default: - printk(TPACPI_ERR - "Unsupported brightness interface, " + pr_err("Unsupported brightness interface, " "please contact %s\n", TPACPI_MAIL); tp_features.bright_unkfw = 1; bright_maxlvl = b - 1; @@ -6260,22 +6195,19 @@ static int __init brightness_init(struct ibm_init_struct *iibm) if (acpi_video_backlight_support()) { if (brightness_enable > 1) { - printk(TPACPI_INFO - "Standard ACPI backlight interface " - "available, not loading native one.\n"); + pr_info("Standard ACPI backlight interface " + "available, not loading native one\n"); return 1; } else if (brightness_enable == 1) { - printk(TPACPI_WARN - "Cannot enable backlight brightness support, " + pr_warn("Cannot enable backlight brightness support, " "ACPI is already handling it. Refer to the " - "acpi_backlight kernel parameter\n"); + "acpi_backlight kernel parameter.\n"); return 1; } } else if (tp_features.bright_acpimode && brightness_enable > 1) { - printk(TPACPI_NOTICE - "Standard ACPI backlight interface not " - "available, thinkpad_acpi native " - "brightness control enabled\n"); + pr_notice("Standard ACPI backlight interface not " + "available, thinkpad_acpi native " + "brightness control enabled\n"); } /* @@ -6319,19 +6251,17 @@ static int __init brightness_init(struct ibm_init_struct *iibm) if (IS_ERR(ibm_backlight_device)) { int rc = PTR_ERR(ibm_backlight_device); ibm_backlight_device = NULL; - printk(TPACPI_ERR "Could not register backlight device\n"); + pr_err("Could not register backlight device\n"); return rc; } vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, "brightness is supported\n"); if (quirks & TPACPI_BRGHT_Q_ASK) { - printk(TPACPI_NOTICE - "brightness: will use unverified default: " - "brightness_mode=%d\n", brightness_mode); - printk(TPACPI_NOTICE - "brightness: please report to %s whether it works well " - "or not on your ThinkPad\n", TPACPI_MAIL); + pr_notice("brightness: will use unverified default: " + "brightness_mode=%d\n", brightness_mode); + pr_notice("brightness: please report to %s whether it works well " + "or not on your ThinkPad\n", TPACPI_MAIL); } /* Added by mistake in early 2007. Probably useless, but it could @@ -6804,8 +6734,7 @@ static int __init volume_create_alsa_mixer(void) rc = snd_card_create(alsa_index, alsa_id, THIS_MODULE, sizeof(struct tpacpi_alsa_data), &card); if (rc < 0 || !card) { - printk(TPACPI_ERR - "Failed to create ALSA card structures: %d\n", rc); + pr_err("Failed to create ALSA card structures: %d\n", rc); return 1; } @@ -6839,9 +6768,8 @@ static int __init volume_create_alsa_mixer(void) ctl_vol = snd_ctl_new1(&volume_alsa_control_vol, NULL); rc = snd_ctl_add(card, ctl_vol); if (rc < 0) { - printk(TPACPI_ERR - "Failed to create ALSA volume control: %d\n", - rc); + pr_err("Failed to create ALSA volume control: %d\n", + rc); goto err_exit; } data->ctl_vol_id = &ctl_vol->id; @@ -6850,8 +6778,7 @@ static int __init volume_create_alsa_mixer(void) ctl_mute = snd_ctl_new1(&volume_alsa_control_mute, NULL); rc = snd_ctl_add(card, ctl_mute); if (rc < 0) { - printk(TPACPI_ERR "Failed to create ALSA mute control: %d\n", - rc); + pr_err("Failed to create ALSA mute control: %d\n", rc); goto err_exit; } data->ctl_mute_id = &ctl_mute->id; @@ -6859,7 +6786,7 @@ static int __init volume_create_alsa_mixer(void) snd_card_set_dev(card, &tpacpi_pdev->dev); rc = snd_card_register(card); if (rc < 0) { - printk(TPACPI_ERR "Failed to register ALSA card: %d\n", rc); + pr_err("Failed to register ALSA card: %d\n", rc); goto err_exit; } @@ -6915,9 +6842,8 @@ static int __init volume_init(struct ibm_init_struct *iibm) return -EINVAL; if (volume_mode == TPACPI_VOL_MODE_UCMS_STEP) { - printk(TPACPI_ERR - "UCMS step volume mode not implemented, " - "please contact %s\n", TPACPI_MAIL); + pr_err("UCMS step volume mode not implemented, " + "please contact %s\n", TPACPI_MAIL); return 1; } @@ -6981,13 +6907,11 @@ static int __init volume_init(struct ibm_init_struct *iibm) rc = volume_create_alsa_mixer(); if (rc) { - printk(TPACPI_ERR - "Could not create the ALSA mixer interface\n"); + pr_err("Could not create the ALSA mixer interface\n"); return rc; } - printk(TPACPI_INFO - "Console audio control enabled, mode: %s\n", + pr_info("Console audio control enabled, mode: %s\n", (volume_control_allowed) ? "override (read/write)" : "monitor (read only)"); @@ -7049,12 +6973,10 @@ static int volume_write(char *buf) if (!volume_control_allowed && tpacpi_lifecycle != TPACPI_LIFE_INIT) { if (unlikely(!tp_warned.volume_ctrl_forbidden)) { tp_warned.volume_ctrl_forbidden = 1; - printk(TPACPI_NOTICE - "Console audio control in monitor mode, " - "changes are not allowed.\n"); - printk(TPACPI_NOTICE - "Use the volume_control=1 module parameter " - "to enable volume control\n"); + pr_notice("Console audio control in monitor mode, " + "changes are not allowed\n"); + pr_notice("Use the volume_control=1 module parameter " + "to enable volume control\n"); } return -EPERM; } @@ -7129,8 +7051,7 @@ static void inline volume_alsa_notify_change(void) static int __init volume_init(struct ibm_init_struct *iibm) { - printk(TPACPI_INFO - "volume: disabled as there is no ALSA support in this kernel\n"); + pr_info("volume: disabled as there is no ALSA support in this kernel\n"); return 1; } @@ -7337,9 +7258,8 @@ TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ static void fan_quirk1_setup(void) { if (fan_control_initial_status == 0x07) { - printk(TPACPI_NOTICE - "fan_init: initial fan status is unknown, " - "assuming it is in auto mode\n"); + pr_notice("fan_init: initial fan status is unknown, " + "assuming it is in auto mode\n"); tp_features.fan_ctrl_status_undef = 1; } } @@ -7726,8 +7646,7 @@ static void fan_watchdog_reset(void) if (!queue_delayed_work(tpacpi_wq, &fan_watchdog_task, msecs_to_jiffies(fan_watchdog_maxinterval * 1000))) { - printk(TPACPI_ERR - "failed to queue the fan watchdog, " + pr_err("failed to queue the fan watchdog, " "watchdog will not trigger\n"); } } else @@ -7741,11 +7660,11 @@ static void fan_watchdog_fire(struct work_struct *ignored) if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) return; - printk(TPACPI_NOTICE "fan watchdog: enabling fan\n"); + pr_notice("fan watchdog: enabling fan\n"); rc = fan_set_enable(); if (rc < 0) { - printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, " - "will try again later...\n", -rc); + pr_err("fan watchdog: error %d while enabling fan, " + "will try again later...\n", -rc); /* reschedule for later */ fan_watchdog_reset(); } @@ -8049,8 +7968,7 @@ static int __init fan_init(struct ibm_init_struct *iibm) "secondary fan support enabled\n"); } } else { - printk(TPACPI_ERR - "ThinkPad ACPI EC access misbehaving, " + pr_err("ThinkPad ACPI EC access misbehaving, " "fan status and control unavailable\n"); return 1; } @@ -8150,9 +8068,8 @@ static void fan_suspend(pm_message_t state) fan_control_resume_level = 0; rc = fan_get_status_safe(&fan_control_resume_level); if (rc < 0) - printk(TPACPI_NOTICE - "failed to read fan level for later " - "restore during resume: %d\n", rc); + pr_notice("failed to read fan level for later " + "restore during resume: %d\n", rc); /* if it is undefined, don't attempt to restore it. * KEEP THIS LAST */ @@ -8207,13 +8124,11 @@ static void fan_resume(void) return; } if (do_set) { - printk(TPACPI_NOTICE - "restoring fan level to 0x%02x\n", - fan_control_resume_level); + pr_notice("restoring fan level to 0x%02x\n", + fan_control_resume_level); rc = fan_set_level_safe(fan_control_resume_level); if (rc < 0) - printk(TPACPI_NOTICE - "failed to restore fan level: %d\n", rc); + pr_notice("failed to restore fan level: %d\n", rc); } } @@ -8305,8 +8220,8 @@ static int fan_write_cmd_level(const char *cmd, int *rc) *rc = fan_set_level_safe(level); if (*rc == -ENXIO) - printk(TPACPI_ERR "level command accepted for unsupported " - "access mode %d", fan_control_access_mode); + pr_err("level command accepted for unsupported access mode %d\n", + fan_control_access_mode); else if (!*rc) tpacpi_disclose_usertask("procfs fan", "set level to %d\n", level); @@ -8321,8 +8236,8 @@ static int fan_write_cmd_enable(const char *cmd, int *rc) *rc = fan_set_enable(); if (*rc == -ENXIO) - printk(TPACPI_ERR "enable command accepted for unsupported " - "access mode %d", fan_control_access_mode); + pr_err("enable command accepted for unsupported access mode %d\n", + fan_control_access_mode); else if (!*rc) tpacpi_disclose_usertask("procfs fan", "enable\n"); @@ -8336,8 +8251,8 @@ static int fan_write_cmd_disable(const char *cmd, int *rc) *rc = fan_set_disable(); if (*rc == -ENXIO) - printk(TPACPI_ERR "disable command accepted for unsupported " - "access mode %d", fan_control_access_mode); + pr_err("disable command accepted for unsupported access mode %d\n", + fan_control_access_mode); else if (!*rc) tpacpi_disclose_usertask("procfs fan", "disable\n"); @@ -8356,8 +8271,8 @@ static int fan_write_cmd_speed(const char *cmd, int *rc) *rc = fan_set_speed(speed); if (*rc == -ENXIO) - printk(TPACPI_ERR "speed command accepted for unsupported " - "access mode %d", fan_control_access_mode); + pr_err("speed command accepted for unsupported access mode %d\n", + fan_control_access_mode); else if (!*rc) tpacpi_disclose_usertask("procfs fan", "set speed to %d\n", speed); @@ -8560,8 +8475,8 @@ static int __init ibm_init(struct ibm_init_struct *iibm) if (ibm->acpi->notify) { ret = setup_acpi_notify(ibm); if (ret == -ENODEV) { - printk(TPACPI_NOTICE "disabling subdriver %s\n", - ibm->name); + pr_notice("disabling subdriver %s\n", + ibm->name); ret = 0; goto err_out; } @@ -8583,8 +8498,7 @@ static int __init ibm_init(struct ibm_init_struct *iibm) entry = proc_create_data(ibm->name, mode, proc_dir, &dispatch_proc_fops, ibm); if (!entry) { - printk(TPACPI_ERR "unable to create proc entry %s\n", - ibm->name); + pr_err("unable to create proc entry %s\n", ibm->name); ret = -ENODEV; goto err_out; } @@ -8683,13 +8597,11 @@ static int __must_check __init get_thinkpad_model_data( tp->ec_release = (ec_fw_string[4] << 8) | ec_fw_string[5]; } else { - printk(TPACPI_NOTICE - "ThinkPad firmware release %s " - "doesn't match the known patterns\n", - ec_fw_string); - printk(TPACPI_NOTICE - "please report this to %s\n", - TPACPI_MAIL); + pr_notice("ThinkPad firmware release %s " + "doesn't match the known patterns\n", + ec_fw_string); + pr_notice("please report this to %s\n", + TPACPI_MAIL); } break; } @@ -8733,8 +8645,7 @@ static int __init probe_for_thinkpad(void) tpacpi_acpi_handle_locate("ec", TPACPI_ACPI_EC_HID, &ec_handle); if (!ec_handle) { if (is_thinkpad) - printk(TPACPI_ERR - "Not yet supported ThinkPad detected!\n"); + pr_err("Not yet supported ThinkPad detected!\n"); return -ENODEV; } @@ -8746,10 +8657,10 @@ static int __init probe_for_thinkpad(void) static void __init thinkpad_acpi_init_banner(void) { - printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION); - printk(TPACPI_INFO "%s\n", TPACPI_URL); + pr_info("%s v%s\n", TPACPI_DESC, TPACPI_VERSION); + pr_info("%s\n", TPACPI_URL); - printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n", + pr_info("ThinkPad BIOS %s, EC %s\n", (thinkpad_id.bios_version_str) ? thinkpad_id.bios_version_str : "unknown", (thinkpad_id.ec_version_str) ? @@ -8758,7 +8669,7 @@ static void __init thinkpad_acpi_init_banner(void) BUG_ON(!thinkpad_id.vendor); if (thinkpad_id.model_str) - printk(TPACPI_INFO "%s %s, model %s\n", + pr_info("%s %s, model %s\n", (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? "IBM" : ((thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) ? @@ -9024,8 +8935,7 @@ static int __init thinkpad_acpi_module_init(void) ret = get_thinkpad_model_data(&thinkpad_id); if (ret) { - printk(TPACPI_ERR - "unable to get DMI data: %d\n", ret); + pr_err("unable to get DMI data: %d\n", ret); thinkpad_acpi_module_exit(); return ret; } @@ -9051,16 +8961,14 @@ static int __init thinkpad_acpi_module_init(void) proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); if (!proc_dir) { - printk(TPACPI_ERR - "unable to create proc dir " TPACPI_PROC_DIR); + pr_err("unable to create proc dir " TPACPI_PROC_DIR "\n"); thinkpad_acpi_module_exit(); return -ENODEV; } ret = platform_driver_register(&tpacpi_pdriver); if (ret) { - printk(TPACPI_ERR - "unable to register main platform driver\n"); + pr_err("unable to register main platform driver\n"); thinkpad_acpi_module_exit(); return ret; } @@ -9068,8 +8976,7 @@ static int __init thinkpad_acpi_module_init(void) ret = platform_driver_register(&tpacpi_hwmon_pdriver); if (ret) { - printk(TPACPI_ERR - "unable to register hwmon platform driver\n"); + pr_err("unable to register hwmon platform driver\n"); thinkpad_acpi_module_exit(); return ret; } @@ -9082,8 +8989,7 @@ static int __init thinkpad_acpi_module_init(void) &tpacpi_hwmon_pdriver.driver); } if (ret) { - printk(TPACPI_ERR - "unable to create sysfs driver attributes\n"); + pr_err("unable to create sysfs driver attributes\n"); thinkpad_acpi_module_exit(); return ret; } @@ -9096,7 +9002,7 @@ static int __init thinkpad_acpi_module_init(void) if (IS_ERR(tpacpi_pdev)) { ret = PTR_ERR(tpacpi_pdev); tpacpi_pdev = NULL; - printk(TPACPI_ERR "unable to register platform device\n"); + pr_err("unable to register platform device\n"); thinkpad_acpi_module_exit(); return ret; } @@ -9106,16 +9012,14 @@ static int __init thinkpad_acpi_module_init(void) if (IS_ERR(tpacpi_sensors_pdev)) { ret = PTR_ERR(tpacpi_sensors_pdev); tpacpi_sensors_pdev = NULL; - printk(TPACPI_ERR - "unable to register hwmon platform device\n"); + pr_err("unable to register hwmon platform device\n"); thinkpad_acpi_module_exit(); return ret; } ret = device_create_file(&tpacpi_sensors_pdev->dev, &dev_attr_thinkpad_acpi_pdev_name); if (ret) { - printk(TPACPI_ERR - "unable to create sysfs hwmon device attributes\n"); + pr_err("unable to create sysfs hwmon device attributes\n"); thinkpad_acpi_module_exit(); return ret; } @@ -9124,14 +9028,14 @@ static int __init thinkpad_acpi_module_init(void) if (IS_ERR(tpacpi_hwmon)) { ret = PTR_ERR(tpacpi_hwmon); tpacpi_hwmon = NULL; - printk(TPACPI_ERR "unable to register hwmon device\n"); + pr_err("unable to register hwmon device\n"); thinkpad_acpi_module_exit(); return ret; } mutex_init(&tpacpi_inputdev_send_mutex); tpacpi_inputdev = input_allocate_device(); if (!tpacpi_inputdev) { - printk(TPACPI_ERR "unable to allocate input device\n"); + pr_err("unable to allocate input device\n"); thinkpad_acpi_module_exit(); return -ENOMEM; } else { @@ -9163,7 +9067,7 @@ static int __init thinkpad_acpi_module_init(void) ret = input_register_device(tpacpi_inputdev); if (ret < 0) { - printk(TPACPI_ERR "unable to register input device\n"); + pr_err("unable to register input device\n"); thinkpad_acpi_module_exit(); return ret; } else { diff --git a/drivers/platform/x86/topstar-laptop.c b/drivers/platform/x86/topstar-laptop.c index 1d07d6d09f2..4c20447ddbb 100644 --- a/drivers/platform/x86/topstar-laptop.c +++ b/drivers/platform/x86/topstar-laptop.c @@ -194,7 +194,7 @@ static int __init topstar_laptop_init(void) if (ret < 0) return ret; - printk(KERN_INFO "Topstar Laptop ACPI extras driver loaded\n"); + pr_info("ACPI extras driver loaded\n"); return 0; } diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index 63f42a22e10..cb009b2629e 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -35,6 +35,8 @@ * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #define TOSHIBA_ACPI_VERSION "0.19" #define PROC_INTERFACE_VERSION 1 @@ -60,11 +62,6 @@ MODULE_AUTHOR("John Belmonte"); MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver"); MODULE_LICENSE("GPL"); -#define MY_LOGPREFIX "toshiba_acpi: " -#define MY_ERR KERN_ERR MY_LOGPREFIX -#define MY_NOTICE KERN_NOTICE MY_LOGPREFIX -#define MY_INFO KERN_INFO MY_LOGPREFIX - /* Toshiba ACPI method paths */ #define METHOD_LCD_BRIGHTNESS "\\_SB_.PCI0.VGA_.LCD_._BCM" #define TOSH_INTERFACE_1 "\\_SB_.VALD" @@ -301,7 +298,7 @@ static int toshiba_illumination_available(void) in[0] = 0xf100; status = hci_raw(in, out); if (ACPI_FAILURE(status)) { - printk(MY_INFO "Illumination device not available\n"); + pr_info("Illumination device not available\n"); return 0; } in[0] = 0xf400; @@ -320,7 +317,7 @@ static void toshiba_illumination_set(struct led_classdev *cdev, in[0] = 0xf100; status = hci_raw(in, out); if (ACPI_FAILURE(status)) { - printk(MY_INFO "Illumination device not available\n"); + pr_info("Illumination device not available\n"); return; } @@ -331,7 +328,7 @@ static void toshiba_illumination_set(struct led_classdev *cdev, in[2] = 1; status = hci_raw(in, out); if (ACPI_FAILURE(status)) { - printk(MY_INFO "ACPI call for illumination failed.\n"); + pr_info("ACPI call for illumination failed\n"); return; } } else { @@ -341,7 +338,7 @@ static void toshiba_illumination_set(struct led_classdev *cdev, in[2] = 0; status = hci_raw(in, out); if (ACPI_FAILURE(status)) { - printk(MY_INFO "ACPI call for illumination failed.\n"); + pr_info("ACPI call for illumination failed.\n"); return; } } @@ -364,7 +361,7 @@ static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev) in[0] = 0xf100; status = hci_raw(in, out); if (ACPI_FAILURE(status)) { - printk(MY_INFO "Illumination device not available\n"); + pr_info("Illumination device not available\n"); return LED_OFF; } @@ -373,7 +370,7 @@ static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev) in[1] = 0x14e; status = hci_raw(in, out); if (ACPI_FAILURE(status)) { - printk(MY_INFO "ACPI call for illumination failed.\n"); + pr_info("ACPI call for illumination failed.\n"); return LED_OFF; } @@ -517,7 +514,7 @@ static int lcd_proc_show(struct seq_file *m, void *v) seq_printf(m, "brightness_levels: %d\n", HCI_LCD_BRIGHTNESS_LEVELS); } else { - printk(MY_ERR "Error reading LCD brightness\n"); + pr_err("Error reading LCD brightness\n"); } return 0; @@ -592,7 +589,7 @@ static int video_proc_show(struct seq_file *m, void *v) seq_printf(m, "crt_out: %d\n", is_crt); seq_printf(m, "tv_out: %d\n", is_tv); } else { - printk(MY_ERR "Error reading video out status\n"); + pr_err("Error reading video out status\n"); } return 0; @@ -686,7 +683,7 @@ static int fan_proc_show(struct seq_file *m, void *v) seq_printf(m, "running: %d\n", (value > 0)); seq_printf(m, "force_on: %d\n", force_fan); } else { - printk(MY_ERR "Error reading fan status\n"); + pr_err("Error reading fan status\n"); } return 0; @@ -750,9 +747,9 @@ static int keys_proc_show(struct seq_file *m, void *v) * some machines where system events sporadically * become disabled. */ hci_write1(HCI_SYSTEM_EVENT, 1, &hci_result); - printk(MY_NOTICE "Re-enabled hotkeys\n"); + pr_notice("Re-enabled hotkeys\n"); } else { - printk(MY_ERR "Error reading hotkey status\n"); + pr_err("Error reading hotkey status\n"); goto end; } } @@ -863,7 +860,7 @@ static void toshiba_acpi_notify(acpi_handle handle, u32 event, void *context) if (!sparse_keymap_report_event(toshiba_acpi.hotkey_dev, value, 1, true)) { - printk(MY_INFO "Unknown key %x\n", + pr_info("Unknown key %x\n", value); } } else if (hci_result == HCI_NOT_SUPPORTED) { @@ -871,7 +868,7 @@ static void toshiba_acpi_notify(acpi_handle handle, u32 event, void *context) * some machines where system events sporadically * become disabled. */ hci_write1(HCI_SYSTEM_EVENT, 1, &hci_result); - printk(MY_NOTICE "Re-enabled hotkeys\n"); + pr_notice("Re-enabled hotkeys\n"); } } while (hci_result != HCI_EMPTY); } @@ -883,13 +880,13 @@ static int __init toshiba_acpi_setup_keyboard(char *device) status = acpi_get_handle(NULL, device, &toshiba_acpi.handle); if (ACPI_FAILURE(status)) { - printk(MY_INFO "Unable to get notification device\n"); + pr_info("Unable to get notification device\n"); return -ENODEV; } toshiba_acpi.hotkey_dev = input_allocate_device(); if (!toshiba_acpi.hotkey_dev) { - printk(MY_INFO "Unable to register input device\n"); + pr_info("Unable to register input device\n"); return -ENOMEM; } @@ -905,21 +902,21 @@ static int __init toshiba_acpi_setup_keyboard(char *device) status = acpi_install_notify_handler(toshiba_acpi.handle, ACPI_DEVICE_NOTIFY, toshiba_acpi_notify, NULL); if (ACPI_FAILURE(status)) { - printk(MY_INFO "Unable to install hotkey notification\n"); + pr_info("Unable to install hotkey notification\n"); error = -ENODEV; goto err_free_keymap; } status = acpi_evaluate_object(toshiba_acpi.handle, "ENAB", NULL, NULL); if (ACPI_FAILURE(status)) { - printk(MY_INFO "Unable to enable hotkeys\n"); + pr_info("Unable to enable hotkeys\n"); error = -ENODEV; goto err_remove_notify; } error = input_register_device(toshiba_acpi.hotkey_dev); if (error) { - printk(MY_INFO "Unable to register input device\n"); + pr_info("Unable to register input device\n"); goto err_remove_notify; } @@ -980,17 +977,17 @@ static int __init toshiba_acpi_init(void) if (is_valid_acpi_path(TOSH_INTERFACE_1 GHCI_METHOD)) { method_hci = TOSH_INTERFACE_1 GHCI_METHOD; if (toshiba_acpi_setup_keyboard(TOSH_INTERFACE_1)) - printk(MY_INFO "Unable to activate hotkeys\n"); + pr_info("Unable to activate hotkeys\n"); } else if (is_valid_acpi_path(TOSH_INTERFACE_2 GHCI_METHOD)) { method_hci = TOSH_INTERFACE_2 GHCI_METHOD; if (toshiba_acpi_setup_keyboard(TOSH_INTERFACE_2)) - printk(MY_INFO "Unable to activate hotkeys\n"); + pr_info("Unable to activate hotkeys\n"); } else return -ENODEV; - printk(MY_INFO "Toshiba Laptop ACPI Extras version %s\n", + pr_info("Toshiba Laptop ACPI Extras version %s\n", TOSHIBA_ACPI_VERSION); - printk(MY_INFO " HCI method: %s\n", method_hci); + pr_info(" HCI method: %s\n", method_hci); mutex_init(&toshiba_acpi.mutex); @@ -998,7 +995,7 @@ static int __init toshiba_acpi_init(void) -1, NULL, 0); if (IS_ERR(toshiba_acpi.p_dev)) { ret = PTR_ERR(toshiba_acpi.p_dev); - printk(MY_ERR "unable to register platform device\n"); + pr_err("unable to register platform device\n"); toshiba_acpi.p_dev = NULL; toshiba_acpi_exit(); return ret; @@ -1028,7 +1025,7 @@ static int __init toshiba_acpi_init(void) if (IS_ERR(toshiba_backlight_device)) { ret = PTR_ERR(toshiba_backlight_device); - printk(KERN_ERR "Could not register toshiba backlight device\n"); + pr_err("Could not register toshiba backlight device\n"); toshiba_backlight_device = NULL; toshiba_acpi_exit(); return ret; @@ -1042,14 +1039,14 @@ static int __init toshiba_acpi_init(void) &toshiba_rfk_ops, &toshiba_acpi); if (!toshiba_acpi.bt_rfk) { - printk(MY_ERR "unable to allocate rfkill device\n"); + pr_err("unable to allocate rfkill device\n"); toshiba_acpi_exit(); return -ENOMEM; } ret = rfkill_register(toshiba_acpi.bt_rfk); if (ret) { - printk(MY_ERR "unable to register rfkill device\n"); + pr_err("unable to register rfkill device\n"); rfkill_destroy(toshiba_acpi.bt_rfk); toshiba_acpi_exit(); return ret; diff --git a/drivers/platform/x86/toshiba_bluetooth.c b/drivers/platform/x86/toshiba_bluetooth.c index 94406861191..5fb7186694d 100644 --- a/drivers/platform/x86/toshiba_bluetooth.c +++ b/drivers/platform/x86/toshiba_bluetooth.c @@ -17,6 +17,8 @@ * delivered. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> @@ -70,14 +72,13 @@ static int toshiba_bluetooth_enable(acpi_handle handle) if (!(result & 0x01)) return 0; - printk(KERN_INFO "toshiba_bluetooth: Re-enabling Toshiba Bluetooth\n"); + pr_info("Re-enabling Toshiba Bluetooth\n"); res1 = acpi_evaluate_object(handle, "AUSB", NULL, NULL); res2 = acpi_evaluate_object(handle, "BTPO", NULL, NULL); if (!ACPI_FAILURE(res1) || !ACPI_FAILURE(res2)) return 0; - printk(KERN_WARNING "toshiba_bluetooth: Failed to re-enable " - "Toshiba Bluetooth\n"); + pr_warn("Failed to re-enable Toshiba Bluetooth\n"); return -ENODEV; } @@ -107,8 +108,8 @@ static int toshiba_bt_rfkill_add(struct acpi_device *device) &bt_present); if (!ACPI_FAILURE(status) && bt_present) { - printk(KERN_INFO "Detected Toshiba ACPI Bluetooth device - " - "installing RFKill handler\n"); + pr_info("Detected Toshiba ACPI Bluetooth device - " + "installing RFKill handler\n"); result = toshiba_bluetooth_enable(device->handle); } diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c index 05cc79672a8..f23d5a84e7b 100644 --- a/drivers/platform/x86/wmi.c +++ b/drivers/platform/x86/wmi.c @@ -486,16 +486,16 @@ static void wmi_dump_wdg(const struct guid_block *g) pr_info("\tnotify_id: %02X\n", g->notify_id); pr_info("\treserved: %02X\n", g->reserved); pr_info("\tinstance_count: %d\n", g->instance_count); - pr_info("\tflags: %#x ", g->flags); + pr_info("\tflags: %#x", g->flags); if (g->flags) { if (g->flags & ACPI_WMI_EXPENSIVE) - pr_cont("ACPI_WMI_EXPENSIVE "); + pr_cont(" ACPI_WMI_EXPENSIVE"); if (g->flags & ACPI_WMI_METHOD) - pr_cont("ACPI_WMI_METHOD "); + pr_cont(" ACPI_WMI_METHOD"); if (g->flags & ACPI_WMI_STRING) - pr_cont("ACPI_WMI_STRING "); + pr_cont(" ACPI_WMI_STRING"); if (g->flags & ACPI_WMI_EVENT) - pr_cont("ACPI_WMI_EVENT "); + pr_cont(" ACPI_WMI_EVENT"); } pr_cont("\n"); diff --git a/drivers/platform/x86/xo15-ebook.c b/drivers/platform/x86/xo15-ebook.c index c1372ed9d2e..fad153dc035 100644 --- a/drivers/platform/x86/xo15-ebook.c +++ b/drivers/platform/x86/xo15-ebook.c @@ -11,6 +11,8 @@ * your option) any later version. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> @@ -20,7 +22,6 @@ #include <acpi/acpi_drivers.h> #define MODULE_NAME "xo15-ebook" -#define PREFIX MODULE_NAME ": " #define XO15_EBOOK_CLASS MODULE_NAME #define XO15_EBOOK_TYPE_UNKNOWN 0x00 @@ -105,7 +106,7 @@ static int ebook_switch_add(struct acpi_device *device) class = acpi_device_class(device); if (strcmp(hid, XO15_EBOOK_HID)) { - printk(KERN_ERR PREFIX "Unsupported hid [%s]\n", hid); + pr_err("Unsupported hid [%s]\n", hid); error = -ENODEV; goto err_free_input; } diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c index fc6f2a5bde0..0b1c82ad680 100644 --- a/drivers/thermal/thermal_sys.c +++ b/drivers/thermal/thermal_sys.c @@ -499,7 +499,7 @@ thermal_add_hwmon_sysfs(struct thermal_zone_device *tz) dev_set_drvdata(hwmon->device, hwmon); result = device_create_file(hwmon->device, &dev_attr_name); if (result) - goto unregister_hwmon_device; + goto free_mem; register_sys_interface: tz->hwmon = hwmon; @@ -513,7 +513,7 @@ thermal_add_hwmon_sysfs(struct thermal_zone_device *tz) sysfs_attr_init(&tz->temp_input.attr.attr); result = device_create_file(hwmon->device, &tz->temp_input.attr); if (result) - goto unregister_hwmon_device; + goto unregister_name; if (tz->ops->get_crit_temp) { unsigned long temperature; @@ -527,7 +527,7 @@ thermal_add_hwmon_sysfs(struct thermal_zone_device *tz) result = device_create_file(hwmon->device, &tz->temp_crit.attr); if (result) - goto unregister_hwmon_device; + goto unregister_input; } } @@ -539,9 +539,9 @@ thermal_add_hwmon_sysfs(struct thermal_zone_device *tz) return 0; - unregister_hwmon_device: - device_remove_file(hwmon->device, &tz->temp_crit.attr); + unregister_input: device_remove_file(hwmon->device, &tz->temp_input.attr); + unregister_name: if (new_hwmon_device) { device_remove_file(hwmon->device, &dev_attr_name); hwmon_device_unregister(hwmon->device); diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c index 8f1700623b4..21de1d6d584 100644 --- a/fs/cifs/cifsacl.c +++ b/fs/cifs/cifsacl.c @@ -74,8 +74,9 @@ shrink_idmap_tree(struct rb_root *root, int nr_to_scan, int *nr_rem, * Run idmap cache shrinker. */ static int -cifs_idmap_shrinker(struct shrinker *shrink, int nr_to_scan, gfp_t gfp_mask) +cifs_idmap_shrinker(struct shrinker *shrink, struct shrink_control *sc) { + int nr_to_scan = sc->nr_to_scan; int nr_del = 0; int nr_rem = 0; struct rb_root *root; diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig index ba306658a6d..81515545ba7 100644 --- a/fs/nfs/Kconfig +++ b/fs/nfs/Kconfig @@ -87,6 +87,16 @@ config NFS_V4_1 config PNFS_FILE_LAYOUT tristate +config PNFS_OBJLAYOUT + tristate "Provide support for the pNFS Objects Layout Driver for NFSv4.1 pNFS (EXPERIMENTAL)" + depends on NFS_FS && NFS_V4_1 && SCSI_OSD_ULD + help + Say M here if you want your pNFS client to support the Objects Layout Driver. + Requires the SCSI osd initiator library (SCSI_OSD_INITIATOR) and + upper level driver (SCSI_OSD_ULD). + + If unsure, say N. + config ROOT_NFS bool "Root file system on NFS" depends on NFS_FS=y && IP_PNP diff --git a/fs/nfs/Makefile b/fs/nfs/Makefile index 4776ff9e381..6a34f7dd0e6 100644 --- a/fs/nfs/Makefile +++ b/fs/nfs/Makefile @@ -15,9 +15,11 @@ nfs-$(CONFIG_NFS_V4) += nfs4proc.o nfs4xdr.o nfs4state.o nfs4renewd.o \ delegation.o idmap.o \ callback.o callback_xdr.o callback_proc.o \ nfs4namespace.o -nfs-$(CONFIG_NFS_V4_1) += pnfs.o +nfs-$(CONFIG_NFS_V4_1) += pnfs.o pnfs_dev.o nfs-$(CONFIG_SYSCTL) += sysctl.o nfs-$(CONFIG_NFS_FSCACHE) += fscache.o fscache-index.o obj-$(CONFIG_PNFS_FILE_LAYOUT) += nfs_layout_nfsv41_files.o nfs_layout_nfsv41_files-y := nfs4filelayout.o nfs4filelayoutdev.o + +obj-$(CONFIG_PNFS_OBJLAYOUT) += objlayout/ diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h index 46d93ce7311..b257383bb56 100644 --- a/fs/nfs/callback.h +++ b/fs/nfs/callback.h @@ -167,6 +167,23 @@ extern unsigned nfs4_callback_layoutrecall( extern void nfs4_check_drain_bc_complete(struct nfs4_session *ses); extern void nfs4_cb_take_slot(struct nfs_client *clp); + +struct cb_devicenotifyitem { + uint32_t cbd_notify_type; + uint32_t cbd_layout_type; + struct nfs4_deviceid cbd_dev_id; + uint32_t cbd_immediate; +}; + +struct cb_devicenotifyargs { + int ndevs; + struct cb_devicenotifyitem *devs; +}; + +extern __be32 nfs4_callback_devicenotify( + struct cb_devicenotifyargs *args, + void *dummy, struct cb_process_state *cps); + #endif /* CONFIG_NFS_V4_1 */ extern int check_gss_callback_principal(struct nfs_client *, struct svc_rqst *); extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args, diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c index 2f41dccea18..d4d1954e9bb 100644 --- a/fs/nfs/callback_proc.c +++ b/fs/nfs/callback_proc.c @@ -139,7 +139,7 @@ static u32 initiate_file_draining(struct nfs_client *clp, spin_lock(&ino->i_lock); if (test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags) || mark_matching_lsegs_invalid(lo, &free_me_list, - args->cbl_range.iomode)) + &args->cbl_range)) rv = NFS4ERR_DELAY; else rv = NFS4ERR_NOMATCHING_LAYOUT; @@ -184,7 +184,7 @@ static u32 initiate_bulk_draining(struct nfs_client *clp, ino = lo->plh_inode; spin_lock(&ino->i_lock); set_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags); - if (mark_matching_lsegs_invalid(lo, &free_me_list, range.iomode)) + if (mark_matching_lsegs_invalid(lo, &free_me_list, &range)) rv = NFS4ERR_DELAY; list_del_init(&lo->plh_bulk_recall); spin_unlock(&ino->i_lock); @@ -241,6 +241,53 @@ static void pnfs_recall_all_layouts(struct nfs_client *clp) do_callback_layoutrecall(clp, &args); } +__be32 nfs4_callback_devicenotify(struct cb_devicenotifyargs *args, + void *dummy, struct cb_process_state *cps) +{ + int i; + __be32 res = 0; + struct nfs_client *clp = cps->clp; + struct nfs_server *server = NULL; + + dprintk("%s: -->\n", __func__); + + if (!clp) { + res = cpu_to_be32(NFS4ERR_OP_NOT_IN_SESSION); + goto out; + } + + for (i = 0; i < args->ndevs; i++) { + struct cb_devicenotifyitem *dev = &args->devs[i]; + + if (!server || + server->pnfs_curr_ld->id != dev->cbd_layout_type) { + rcu_read_lock(); + list_for_each_entry_rcu(server, &clp->cl_superblocks, client_link) + if (server->pnfs_curr_ld && + server->pnfs_curr_ld->id == dev->cbd_layout_type) { + rcu_read_unlock(); + goto found; + } + rcu_read_unlock(); + dprintk("%s: layout type %u not found\n", + __func__, dev->cbd_layout_type); + continue; + } + + found: + if (dev->cbd_notify_type == NOTIFY_DEVICEID4_CHANGE) + dprintk("%s: NOTIFY_DEVICEID4_CHANGE not supported, " + "deleting instead\n", __func__); + nfs4_delete_deviceid(server->pnfs_curr_ld, clp, &dev->cbd_dev_id); + } + +out: + kfree(args->devs); + dprintk("%s: exit with status = %u\n", + __func__, be32_to_cpu(res)); + return res; +} + int nfs41_validate_delegation_stateid(struct nfs_delegation *delegation, const nfs4_stateid *stateid) { if (delegation == NULL) diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c index 00ecf62ce7c..c6c86a77e04 100644 --- a/fs/nfs/callback_xdr.c +++ b/fs/nfs/callback_xdr.c @@ -25,6 +25,7 @@ #if defined(CONFIG_NFS_V4_1) #define CB_OP_LAYOUTRECALL_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ) +#define CB_OP_DEVICENOTIFY_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ) #define CB_OP_SEQUENCE_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ + \ 4 + 1 + 3) #define CB_OP_RECALLANY_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ) @@ -284,6 +285,93 @@ out: return status; } +static +__be32 decode_devicenotify_args(struct svc_rqst *rqstp, + struct xdr_stream *xdr, + struct cb_devicenotifyargs *args) +{ + __be32 *p; + __be32 status = 0; + u32 tmp; + int n, i; + args->ndevs = 0; + + /* Num of device notifications */ + p = read_buf(xdr, sizeof(uint32_t)); + if (unlikely(p == NULL)) { + status = htonl(NFS4ERR_BADXDR); + goto out; + } + n = ntohl(*p++); + if (n <= 0) + goto out; + + args->devs = kmalloc(n * sizeof(*args->devs), GFP_KERNEL); + if (!args->devs) { + status = htonl(NFS4ERR_DELAY); + goto out; + } + + /* Decode each dev notification */ + for (i = 0; i < n; i++) { + struct cb_devicenotifyitem *dev = &args->devs[i]; + + p = read_buf(xdr, (4 * sizeof(uint32_t)) + NFS4_DEVICEID4_SIZE); + if (unlikely(p == NULL)) { + status = htonl(NFS4ERR_BADXDR); + goto err; + } + + tmp = ntohl(*p++); /* bitmap size */ + if (tmp != 1) { + status = htonl(NFS4ERR_INVAL); + goto err; + } + dev->cbd_notify_type = ntohl(*p++); + if (dev->cbd_notify_type != NOTIFY_DEVICEID4_CHANGE && + dev->cbd_notify_type != NOTIFY_DEVICEID4_DELETE) { + status = htonl(NFS4ERR_INVAL); + goto err; + } + + tmp = ntohl(*p++); /* opaque size */ + if (((dev->cbd_notify_type == NOTIFY_DEVICEID4_CHANGE) && + (tmp != NFS4_DEVICEID4_SIZE + 8)) || + ((dev->cbd_notify_type == NOTIFY_DEVICEID4_DELETE) && + (tmp != NFS4_DEVICEID4_SIZE + 4))) { + status = htonl(NFS4ERR_INVAL); + goto err; + } + dev->cbd_layout_type = ntohl(*p++); + memcpy(dev->cbd_dev_id.data, p, NFS4_DEVICEID4_SIZE); + p += XDR_QUADLEN(NFS4_DEVICEID4_SIZE); + + if (dev->cbd_layout_type == NOTIFY_DEVICEID4_CHANGE) { + p = read_buf(xdr, sizeof(uint32_t)); + if (unlikely(p == NULL)) { + status = htonl(NFS4ERR_BADXDR); + goto err; + } + dev->cbd_immediate = ntohl(*p++); + } else { + dev->cbd_immediate = 0; + } + + args->ndevs++; + + dprintk("%s: type %d layout 0x%x immediate %d\n", + __func__, dev->cbd_notify_type, dev->cbd_layout_type, + dev->cbd_immediate); + } +out: + dprintk("%s: status %d ndevs %d\n", + __func__, ntohl(status), args->ndevs); + return status; +err: + kfree(args->devs); + goto out; +} + static __be32 decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) { @@ -639,10 +727,10 @@ preprocess_nfs41_op(int nop, unsigned int op_nr, struct callback_op **op) case OP_CB_RECALL_ANY: case OP_CB_RECALL_SLOT: case OP_CB_LAYOUTRECALL: + case OP_CB_NOTIFY_DEVICEID: *op = &callback_ops[op_nr]; break; - case OP_CB_NOTIFY_DEVICEID: case OP_CB_NOTIFY: case OP_CB_PUSH_DELEG: case OP_CB_RECALLABLE_OBJ_AVAIL: @@ -849,6 +937,12 @@ static struct callback_op callback_ops[] = { (callback_decode_arg_t)decode_layoutrecall_args, .res_maxsize = CB_OP_LAYOUTRECALL_RES_MAXSZ, }, + [OP_CB_NOTIFY_DEVICEID] = { + .process_op = (callback_process_op_t)nfs4_callback_devicenotify, + .decode_args = + (callback_decode_arg_t)decode_devicenotify_args, + .res_maxsize = CB_OP_DEVICENOTIFY_RES_MAXSZ, + }, [OP_CB_SEQUENCE] = { .process_op = (callback_process_op_t)nfs4_callback_sequence, .decode_args = (callback_decode_arg_t)decode_cb_sequence_args, diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 139be9647d8..b3dc2b88b65 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -290,6 +290,8 @@ static void nfs_free_client(struct nfs_client *clp) if (clp->cl_machine_cred != NULL) put_rpccred(clp->cl_machine_cred); + nfs4_deviceid_purge_client(clp); + kfree(clp->cl_hostname); kfree(clp); diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index bbbc6bf5cb2..dd25c2aec37 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -21,25 +21,13 @@ #include "delegation.h" #include "internal.h" -static void nfs_do_free_delegation(struct nfs_delegation *delegation) -{ - kfree(delegation); -} - -static void nfs_free_delegation_callback(struct rcu_head *head) -{ - struct nfs_delegation *delegation = container_of(head, struct nfs_delegation, rcu); - - nfs_do_free_delegation(delegation); -} - static void nfs_free_delegation(struct nfs_delegation *delegation) { if (delegation->cred) { put_rpccred(delegation->cred); delegation->cred = NULL; } - call_rcu(&delegation->rcu, nfs_free_delegation_callback); + kfree_rcu(delegation, rcu); } /** diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 424e47773a8..ededdbd0db3 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -512,12 +512,7 @@ int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *en struct page **xdr_pages, struct page *page, unsigned int buflen) { struct xdr_stream stream; - struct xdr_buf buf = { - .pages = xdr_pages, - .page_len = buflen, - .buflen = buflen, - .len = buflen, - }; + struct xdr_buf buf; struct page *scratch; struct nfs_cache_array *array; unsigned int count = 0; @@ -527,7 +522,7 @@ int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *en if (scratch == NULL) return -ENOMEM; - xdr_init_decode(&stream, &buf, NULL); + xdr_init_decode_pages(&stream, &buf, xdr_pages, buflen); xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE); do { diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 57bb31ad7a5..144f2a3c718 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -1298,8 +1298,12 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) i_size_write(inode, new_isize); invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA; } - dprintk("NFS: isize change on server for file %s/%ld\n", - inode->i_sb->s_id, inode->i_ino); + dprintk("NFS: isize change on server for file %s/%ld " + "(%Ld to %Ld)\n", + inode->i_sb->s_id, + inode->i_ino, + (long long)cur_isize, + (long long)new_isize); } } else invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR @@ -1424,9 +1428,10 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) */ void nfs4_evict_inode(struct inode *inode) { - pnfs_destroy_layout(NFS_I(inode)); truncate_inode_pages(&inode->i_data, 0); end_writeback(inode); + pnfs_return_layout(inode); + pnfs_destroy_layout(NFS_I(inode)); /* If we are holding a delegation, return it! */ nfs_inode_return_delegation_noreclaim(inode); /* First call standard NFS clear_inode() code */ diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 2df6ca7b589..b9056cbe68d 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -310,6 +310,7 @@ extern int nfs_migrate_page(struct address_space *, #endif /* nfs4proc.c */ +extern void __nfs4_read_done_cb(struct nfs_read_data *); extern void nfs4_reset_read(struct rpc_task *task, struct nfs_read_data *data); extern int nfs4_init_client(struct nfs_client *clp, const struct rpc_timeout *timeparms, diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index be79dc9f386..426908809c9 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -421,6 +421,7 @@ filelayout_check_layout(struct pnfs_layout_hdr *lo, struct nfs4_deviceid *id, gfp_t gfp_flags) { + struct nfs4_deviceid_node *d; struct nfs4_file_layout_dsaddr *dsaddr; int status = -EINVAL; struct nfs_server *nfss = NFS_SERVER(lo->plh_inode); @@ -428,7 +429,7 @@ filelayout_check_layout(struct pnfs_layout_hdr *lo, dprintk("--> %s\n", __func__); if (fl->pattern_offset > lgr->range.offset) { - dprintk("%s pattern_offset %lld to large\n", + dprintk("%s pattern_offset %lld too large\n", __func__, fl->pattern_offset); goto out; } @@ -440,12 +441,14 @@ filelayout_check_layout(struct pnfs_layout_hdr *lo, } /* find and reference the deviceid */ - dsaddr = nfs4_fl_find_get_deviceid(id); - if (dsaddr == NULL) { + d = nfs4_find_get_deviceid(NFS_SERVER(lo->plh_inode)->pnfs_curr_ld, + NFS_SERVER(lo->plh_inode)->nfs_client, id); + if (d == NULL) { dsaddr = get_device_info(lo->plh_inode, id, gfp_flags); if (dsaddr == NULL) goto out; - } + } else + dsaddr = container_of(d, struct nfs4_file_layout_dsaddr, id_node); fl->dsaddr = dsaddr; if (fl->first_stripe_index < 0 || @@ -507,12 +510,7 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo, gfp_t gfp_flags) { struct xdr_stream stream; - struct xdr_buf buf = { - .pages = lgr->layoutp->pages, - .page_len = lgr->layoutp->len, - .buflen = lgr->layoutp->len, - .len = lgr->layoutp->len, - }; + struct xdr_buf buf; struct page *scratch; __be32 *p; uint32_t nfl_util; @@ -524,7 +522,7 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo, if (!scratch) return -ENOMEM; - xdr_init_decode(&stream, &buf, NULL); + xdr_init_decode_pages(&stream, &buf, lgr->layoutp->pages, lgr->layoutp->len); xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE); /* 20 = ufl_util (4), first_stripe_index (4), pattern_offset (8), @@ -535,7 +533,7 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo, memcpy(id, p, sizeof(*id)); p += XDR_QUADLEN(NFS4_DEVICEID4_SIZE); - print_deviceid(id); + nfs4_print_deviceid(id); nfl_util = be32_to_cpup(p++); if (nfl_util & NFL4_UFLG_COMMIT_THRU_MDS) @@ -653,16 +651,19 @@ filelayout_alloc_lseg(struct pnfs_layout_hdr *layoutid, /* * filelayout_pg_test(). Called by nfs_can_coalesce_requests() * - * return 1 : coalesce page - * return 0 : don't coalesce page + * return true : coalesce page + * return false : don't coalesce page */ -int +bool filelayout_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev, struct nfs_page *req) { u64 p_stripe, r_stripe; u32 stripe_unit; + if (!pnfs_generic_pg_test(pgio, prev, req)) + return 0; + if (!pgio->pg_lseg) return 1; p_stripe = (u64)prev->wb_index << PAGE_CACHE_SHIFT; @@ -860,6 +861,12 @@ filelayout_commit_pagelist(struct inode *inode, struct list_head *mds_pages, return -ENOMEM; } +static void +filelayout_free_deveiceid_node(struct nfs4_deviceid_node *d) +{ + nfs4_fl_free_deviceid(container_of(d, struct nfs4_file_layout_dsaddr, id_node)); +} + static struct pnfs_layoutdriver_type filelayout_type = { .id = LAYOUT_NFSV4_1_FILES, .name = "LAYOUT_NFSV4_1_FILES", @@ -872,6 +879,7 @@ static struct pnfs_layoutdriver_type filelayout_type = { .commit_pagelist = filelayout_commit_pagelist, .read_pagelist = filelayout_read_pagelist, .write_pagelist = filelayout_write_pagelist, + .free_deviceid_node = filelayout_free_deveiceid_node, }; static int __init nfs4filelayout_init(void) diff --git a/fs/nfs/nfs4filelayout.h b/fs/nfs/nfs4filelayout.h index 2b461d77b43..cebe01e3795 100644 --- a/fs/nfs/nfs4filelayout.h +++ b/fs/nfs/nfs4filelayout.h @@ -59,9 +59,7 @@ struct nfs4_pnfs_ds { #define NFS4_DEVICE_ID_NEG_ENTRY 0x00000001 struct nfs4_file_layout_dsaddr { - struct hlist_node node; - struct nfs4_deviceid deviceid; - atomic_t ref; + struct nfs4_deviceid_node id_node; unsigned long flags; u32 stripe_count; u8 *stripe_indices; @@ -95,14 +93,12 @@ extern struct nfs_fh * nfs4_fl_select_ds_fh(struct pnfs_layout_segment *lseg, u32 j); extern void print_ds(struct nfs4_pnfs_ds *ds); -extern void print_deviceid(struct nfs4_deviceid *dev_id); u32 nfs4_fl_calc_j_index(struct pnfs_layout_segment *lseg, loff_t offset); u32 nfs4_fl_calc_ds_index(struct pnfs_layout_segment *lseg, u32 j); struct nfs4_pnfs_ds *nfs4_fl_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx); -extern struct nfs4_file_layout_dsaddr * -nfs4_fl_find_get_deviceid(struct nfs4_deviceid *dev_id); extern void nfs4_fl_put_deviceid(struct nfs4_file_layout_dsaddr *dsaddr); +extern void nfs4_fl_free_deviceid(struct nfs4_file_layout_dsaddr *dsaddr); struct nfs4_file_layout_dsaddr * get_device_info(struct inode *inode, struct nfs4_deviceid *dev_id, gfp_t gfp_flags); diff --git a/fs/nfs/nfs4filelayoutdev.c b/fs/nfs/nfs4filelayoutdev.c index db07c7af139..3b7bf137726 100644 --- a/fs/nfs/nfs4filelayoutdev.c +++ b/fs/nfs/nfs4filelayoutdev.c @@ -37,30 +37,6 @@ #define NFSDBG_FACILITY NFSDBG_PNFS_LD /* - * Device ID RCU cache. A device ID is unique per client ID and layout type. - */ -#define NFS4_FL_DEVICE_ID_HASH_BITS 5 -#define NFS4_FL_DEVICE_ID_HASH_SIZE (1 << NFS4_FL_DEVICE_ID_HASH_BITS) -#define NFS4_FL_DEVICE_ID_HASH_MASK (NFS4_FL_DEVICE_ID_HASH_SIZE - 1) - -static inline u32 -nfs4_fl_deviceid_hash(struct nfs4_deviceid *id) -{ - unsigned char *cptr = (unsigned char *)id->data; - unsigned int nbytes = NFS4_DEVICEID4_SIZE; - u32 x = 0; - - while (nbytes--) { - x *= 37; - x += *cptr++; - } - return x & NFS4_FL_DEVICE_ID_HASH_MASK; -} - -static struct hlist_head filelayout_deviceid_cache[NFS4_FL_DEVICE_ID_HASH_SIZE]; -static DEFINE_SPINLOCK(filelayout_deviceid_lock); - -/* * Data server cache * * Data servers can be mapped to different device ids. @@ -89,27 +65,6 @@ print_ds(struct nfs4_pnfs_ds *ds) ds->ds_clp ? ds->ds_clp->cl_exchange_flags : 0); } -void -print_ds_list(struct nfs4_file_layout_dsaddr *dsaddr) -{ - int i; - - ifdebug(FACILITY) { - printk("%s dsaddr->ds_num %d\n", __func__, - dsaddr->ds_num); - for (i = 0; i < dsaddr->ds_num; i++) - print_ds(dsaddr->ds_list[i]); - } -} - -void print_deviceid(struct nfs4_deviceid *id) -{ - u32 *p = (u32 *)id; - - dprintk("%s: device id= [%x%x%x%x]\n", __func__, - p[0], p[1], p[2], p[3]); -} - /* nfs4_ds_cache_lock is held */ static struct nfs4_pnfs_ds * _data_server_lookup_locked(u32 ip_addr, u32 port) @@ -201,13 +156,13 @@ destroy_ds(struct nfs4_pnfs_ds *ds) kfree(ds); } -static void +void nfs4_fl_free_deviceid(struct nfs4_file_layout_dsaddr *dsaddr) { struct nfs4_pnfs_ds *ds; int i; - print_deviceid(&dsaddr->deviceid); + nfs4_print_deviceid(&dsaddr->id_node.deviceid); for (i = 0; i < dsaddr->ds_num; i++) { ds = dsaddr->ds_list[i]; @@ -353,12 +308,7 @@ decode_device(struct inode *ino, struct pnfs_device *pdev, gfp_t gfp_flags) u8 max_stripe_index; struct nfs4_file_layout_dsaddr *dsaddr = NULL; struct xdr_stream stream; - struct xdr_buf buf = { - .pages = pdev->pages, - .page_len = pdev->pglen, - .buflen = pdev->pglen, - .len = pdev->pglen, - }; + struct xdr_buf buf; struct page *scratch; /* set up xdr stream */ @@ -366,7 +316,7 @@ decode_device(struct inode *ino, struct pnfs_device *pdev, gfp_t gfp_flags) if (!scratch) goto out_err; - xdr_init_decode(&stream, &buf, NULL); + xdr_init_decode_pages(&stream, &buf, pdev->pages, pdev->pglen); xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE); /* Get the stripe count (number of stripe index) */ @@ -431,8 +381,10 @@ decode_device(struct inode *ino, struct pnfs_device *pdev, gfp_t gfp_flags) dsaddr->stripe_indices = stripe_indices; stripe_indices = NULL; dsaddr->ds_num = num; - - memcpy(&dsaddr->deviceid, &pdev->dev_id, sizeof(pdev->dev_id)); + nfs4_init_deviceid_node(&dsaddr->id_node, + NFS_SERVER(ino)->pnfs_curr_ld, + NFS_SERVER(ino)->nfs_client, + &pdev->dev_id); for (i = 0; i < dsaddr->ds_num; i++) { int j; @@ -505,8 +457,8 @@ out_err: static struct nfs4_file_layout_dsaddr * decode_and_add_device(struct inode *inode, struct pnfs_device *dev, gfp_t gfp_flags) { - struct nfs4_file_layout_dsaddr *d, *new; - long hash; + struct nfs4_deviceid_node *d; + struct nfs4_file_layout_dsaddr *n, *new; new = decode_device(inode, dev, gfp_flags); if (!new) { @@ -515,20 +467,13 @@ decode_and_add_device(struct inode *inode, struct pnfs_device *dev, gfp_t gfp_fl return NULL; } - spin_lock(&filelayout_deviceid_lock); - d = nfs4_fl_find_get_deviceid(&new->deviceid); - if (d) { - spin_unlock(&filelayout_deviceid_lock); + d = nfs4_insert_deviceid_node(&new->id_node); + n = container_of(d, struct nfs4_file_layout_dsaddr, id_node); + if (n != new) { nfs4_fl_free_deviceid(new); - return d; + return n; } - INIT_HLIST_NODE(&new->node); - atomic_set(&new->ref, 1); - hash = nfs4_fl_deviceid_hash(&new->deviceid); - hlist_add_head_rcu(&new->node, &filelayout_deviceid_cache[hash]); - spin_unlock(&filelayout_deviceid_lock); - return new; } @@ -600,35 +545,7 @@ out_free: void nfs4_fl_put_deviceid(struct nfs4_file_layout_dsaddr *dsaddr) { - if (atomic_dec_and_lock(&dsaddr->ref, &filelayout_deviceid_lock)) { - hlist_del_rcu(&dsaddr->node); - spin_unlock(&filelayout_deviceid_lock); - - synchronize_rcu(); - nfs4_fl_free_deviceid(dsaddr); - } -} - -struct nfs4_file_layout_dsaddr * -nfs4_fl_find_get_deviceid(struct nfs4_deviceid *id) -{ - struct nfs4_file_layout_dsaddr *d; - struct hlist_node *n; - long hash = nfs4_fl_deviceid_hash(id); - - - rcu_read_lock(); - hlist_for_each_entry_rcu(d, n, &filelayout_deviceid_cache[hash], node) { - if (!memcmp(&d->deviceid, id, sizeof(*id))) { - if (!atomic_inc_not_zero(&d->ref)) - goto fail; - rcu_read_unlock(); - return d; - } - } -fail: - rcu_read_unlock(); - return NULL; + nfs4_put_deviceid_node(&dsaddr->id_node); } /* @@ -676,15 +593,15 @@ static void filelayout_mark_devid_negative(struct nfs4_file_layout_dsaddr *dsaddr, int err, u32 ds_addr) { - u32 *p = (u32 *)&dsaddr->deviceid; + u32 *p = (u32 *)&dsaddr->id_node.deviceid; printk(KERN_ERR "NFS: data server %x connection error %d." " Deviceid [%x%x%x%x] marked out of use.\n", ds_addr, err, p[0], p[1], p[2], p[3]); - spin_lock(&filelayout_deviceid_lock); + spin_lock(&nfs4_ds_cache_lock); dsaddr->flags |= NFS4_DEVICE_ID_NEG_ENTRY; - spin_unlock(&filelayout_deviceid_lock); + spin_unlock(&nfs4_ds_cache_lock); } struct nfs4_pnfs_ds * diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index cf1b339c393..d2c4b59c896 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -267,9 +267,11 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc break; nfs4_schedule_stateid_recovery(server, state); goto wait_on_recovery; + case -NFS4ERR_EXPIRED: + if (state != NULL) + nfs4_schedule_stateid_recovery(server, state); case -NFS4ERR_STALE_STATEID: case -NFS4ERR_STALE_CLIENTID: - case -NFS4ERR_EXPIRED: nfs4_schedule_lease_recovery(clp); goto wait_on_recovery; #if defined(CONFIG_NFS_V4_1) @@ -2361,6 +2363,9 @@ nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, struct nfs4_state *state = NULL; int status; + if (pnfs_ld_layoutret_on_setattr(inode)) + pnfs_return_layout(inode); + nfs_fattr_init(fattr); /* Search for an existing open(O_WRITE) file */ @@ -3175,6 +3180,11 @@ static int nfs4_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, return err; } +void __nfs4_read_done_cb(struct nfs_read_data *data) +{ + nfs_invalidate_atime(data->inode); +} + static int nfs4_read_done_cb(struct rpc_task *task, struct nfs_read_data *data) { struct nfs_server *server = NFS_SERVER(data->inode); @@ -3184,7 +3194,7 @@ static int nfs4_read_done_cb(struct rpc_task *task, struct nfs_read_data *data) return -EAGAIN; } - nfs_invalidate_atime(data->inode); + __nfs4_read_done_cb(data); if (task->tk_status > 0) renew_lease(server, data->timestamp); return 0; @@ -3198,7 +3208,8 @@ static int nfs4_read_done(struct rpc_task *task, struct nfs_read_data *data) if (!nfs4_sequence_done(task, &data->res.seq_res)) return -EAGAIN; - return data->read_done_cb(task, data); + return data->read_done_cb ? data->read_done_cb(task, data) : + nfs4_read_done_cb(task, data); } static void nfs4_proc_read_setup(struct nfs_read_data *data, struct rpc_message *msg) @@ -3243,7 +3254,8 @@ static int nfs4_write_done(struct rpc_task *task, struct nfs_write_data *data) { if (!nfs4_sequence_done(task, &data->res.seq_res)) return -EAGAIN; - return data->write_done_cb(task, data); + return data->write_done_cb ? data->write_done_cb(task, data) : + nfs4_write_done_cb(task, data); } /* Reset the the nfs_write_data to send the write to the MDS. */ @@ -3670,9 +3682,11 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, break; nfs4_schedule_stateid_recovery(server, state); goto wait_on_recovery; + case -NFS4ERR_EXPIRED: + if (state != NULL) + nfs4_schedule_stateid_recovery(server, state); case -NFS4ERR_STALE_STATEID: case -NFS4ERR_STALE_CLIENTID: - case -NFS4ERR_EXPIRED: nfs4_schedule_lease_recovery(clp); goto wait_on_recovery; #if defined(CONFIG_NFS_V4_1) @@ -4543,6 +4557,7 @@ int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl) case -ESTALE: goto out; case -NFS4ERR_EXPIRED: + nfs4_schedule_stateid_recovery(server, state); case -NFS4ERR_STALE_CLIENTID: case -NFS4ERR_STALE_STATEID: nfs4_schedule_lease_recovery(server->nfs_client); @@ -5666,6 +5681,88 @@ int nfs4_proc_layoutget(struct nfs4_layoutget *lgp) return status; } +static void +nfs4_layoutreturn_prepare(struct rpc_task *task, void *calldata) +{ + struct nfs4_layoutreturn *lrp = calldata; + + dprintk("--> %s\n", __func__); + if (nfs41_setup_sequence(lrp->clp->cl_session, &lrp->args.seq_args, + &lrp->res.seq_res, 0, task)) + return; + rpc_call_start(task); +} + +static void nfs4_layoutreturn_done(struct rpc_task *task, void *calldata) +{ + struct nfs4_layoutreturn *lrp = calldata; + struct nfs_server *server; + + dprintk("--> %s\n", __func__); + + if (!nfs4_sequence_done(task, &lrp->res.seq_res)) + return; + + server = NFS_SERVER(lrp->args.inode); + if (nfs4_async_handle_error(task, server, NULL) == -EAGAIN) { + nfs_restart_rpc(task, lrp->clp); + return; + } + if (task->tk_status == 0) { + struct pnfs_layout_hdr *lo = NFS_I(lrp->args.inode)->layout; + + if (lrp->res.lrs_present) { + spin_lock(&lo->plh_inode->i_lock); + pnfs_set_layout_stateid(lo, &lrp->res.stateid, true); + spin_unlock(&lo->plh_inode->i_lock); + } else + BUG_ON(!list_empty(&lo->plh_segs)); + } + dprintk("<-- %s\n", __func__); +} + +static void nfs4_layoutreturn_release(void *calldata) +{ + struct nfs4_layoutreturn *lrp = calldata; + + dprintk("--> %s\n", __func__); + put_layout_hdr(NFS_I(lrp->args.inode)->layout); + kfree(calldata); + dprintk("<-- %s\n", __func__); +} + +static const struct rpc_call_ops nfs4_layoutreturn_call_ops = { + .rpc_call_prepare = nfs4_layoutreturn_prepare, + .rpc_call_done = nfs4_layoutreturn_done, + .rpc_release = nfs4_layoutreturn_release, +}; + +int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp) +{ + struct rpc_task *task; + struct rpc_message msg = { + .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LAYOUTRETURN], + .rpc_argp = &lrp->args, + .rpc_resp = &lrp->res, + }; + struct rpc_task_setup task_setup_data = { + .rpc_client = lrp->clp->cl_rpcclient, + .rpc_message = &msg, + .callback_ops = &nfs4_layoutreturn_call_ops, + .callback_data = lrp, + }; + int status; + + dprintk("--> %s\n", __func__); + task = rpc_run_task(&task_setup_data); + if (IS_ERR(task)) + return PTR_ERR(task); + status = task->tk_status; + dprintk("<-- %s status=%d\n", __func__, status); + rpc_put_task(task); + return status; +} + static int _nfs4_proc_getdeviceinfo(struct nfs_server *server, struct pnfs_device *pdev) { diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 036f5adc9e1..e97dd219f84 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -1466,7 +1466,10 @@ static int nfs4_reclaim_lease(struct nfs_client *clp) #ifdef CONFIG_NFS_V4_1 void nfs4_schedule_session_recovery(struct nfs4_session *session) { - nfs4_schedule_lease_recovery(session->clp); + struct nfs_client *clp = session->clp; + + set_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state); + nfs4_schedule_lease_recovery(clp); } EXPORT_SYMBOL_GPL(nfs4_schedule_session_recovery); @@ -1549,6 +1552,7 @@ static int nfs4_reset_session(struct nfs_client *clp) status = nfs4_recovery_handle_error(clp, status); goto out; } + clear_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state); /* create_session negotiated new slot table */ clear_bit(NFS4CLNT_RECALL_SLOT, &clp->cl_state); diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index c3ccd2c4683..d869a5e5464 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -338,7 +338,11 @@ static int nfs4_stat_to_errno(int); 1 /* layoutupdate4 layout type */ + \ 1 /* NULL filelayout layoutupdate4 payload */) #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3) - +#define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \ + encode_stateid_maxsz + \ + 1 /* FIXME: opaque lrf_body always empty at the moment */) +#define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \ + 1 + decode_stateid_maxsz) #else /* CONFIG_NFS_V4_1 */ #define encode_sequence_maxsz 0 #define decode_sequence_maxsz 0 @@ -760,7 +764,14 @@ static int nfs4_stat_to_errno(int); decode_putfh_maxsz + \ decode_layoutcommit_maxsz + \ decode_getattr_maxsz) - +#define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \ + encode_sequence_maxsz + \ + encode_putfh_maxsz + \ + encode_layoutreturn_maxsz) +#define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \ + decode_sequence_maxsz + \ + decode_putfh_maxsz + \ + decode_layoutreturn_maxsz) const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + compound_encode_hdr_maxsz + @@ -1864,6 +1875,7 @@ encode_layoutget(struct xdr_stream *xdr, static int encode_layoutcommit(struct xdr_stream *xdr, + struct inode *inode, const struct nfs4_layoutcommit_args *args, struct compound_hdr *hdr) { @@ -1872,7 +1884,7 @@ encode_layoutcommit(struct xdr_stream *xdr, dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, NFS_SERVER(args->inode)->pnfs_curr_ld->id); - p = reserve_space(xdr, 48 + NFS4_STATEID_SIZE); + p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE); *p++ = cpu_to_be32(OP_LAYOUTCOMMIT); /* Only whole file layouts */ p = xdr_encode_hyper(p, 0); /* offset */ @@ -1883,12 +1895,49 @@ encode_layoutcommit(struct xdr_stream *xdr, p = xdr_encode_hyper(p, args->lastbytewritten); *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ - *p++ = cpu_to_be32(0); /* no file layout payload */ + + if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit) + NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit( + NFS_I(inode)->layout, xdr, args); + else { + p = reserve_space(xdr, 4); + *p = cpu_to_be32(0); /* no layout-type payload */ + } hdr->nops++; hdr->replen += decode_layoutcommit_maxsz; return 0; } + +static void +encode_layoutreturn(struct xdr_stream *xdr, + const struct nfs4_layoutreturn_args *args, + struct compound_hdr *hdr) +{ + __be32 *p; + + p = reserve_space(xdr, 20); + *p++ = cpu_to_be32(OP_LAYOUTRETURN); + *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ + *p++ = cpu_to_be32(args->layout_type); + *p++ = cpu_to_be32(IOMODE_ANY); + *p = cpu_to_be32(RETURN_FILE); + p = reserve_space(xdr, 16 + NFS4_STATEID_SIZE); + p = xdr_encode_hyper(p, 0); + p = xdr_encode_hyper(p, NFS4_MAX_UINT64); + spin_lock(&args->inode->i_lock); + xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE); + spin_unlock(&args->inode->i_lock); + if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) { + NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn( + NFS_I(args->inode)->layout, xdr, args); + } else { + p = reserve_space(xdr, 4); + *p = cpu_to_be32(0); + } + hdr->nops++; + hdr->replen += decode_layoutreturn_maxsz; +} #endif /* CONFIG_NFS_V4_1 */ /* @@ -2706,10 +2755,12 @@ static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, /* * Encode LAYOUTCOMMIT request */ -static int nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, - struct xdr_stream *xdr, - struct nfs4_layoutcommit_args *args) +static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, + struct xdr_stream *xdr, + struct nfs4_layoutcommit_args *args) { + struct nfs4_layoutcommit_data *data = + container_of(args, struct nfs4_layoutcommit_data, args); struct compound_hdr hdr = { .minorversion = nfs4_xdr_minorversion(&args->seq_args), }; @@ -2717,10 +2768,27 @@ static int nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, encode_compound_hdr(xdr, req, &hdr); encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, NFS_FH(args->inode), &hdr); - encode_layoutcommit(xdr, args, &hdr); + encode_layoutcommit(xdr, data->args.inode, args, &hdr); encode_getfattr(xdr, args->bitmask, &hdr); encode_nops(&hdr); - return 0; +} + +/* + * Encode LAYOUTRETURN request + */ +static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, + struct xdr_stream *xdr, + struct nfs4_layoutreturn_args *args) +{ + struct compound_hdr hdr = { + .minorversion = nfs4_xdr_minorversion(&args->seq_args), + }; + + encode_compound_hdr(xdr, req, &hdr); + encode_sequence(xdr, &args->seq_args, &hdr); + encode_putfh(xdr, NFS_FH(args->inode), &hdr); + encode_layoutreturn(xdr, args, &hdr); + encode_nops(&hdr); } #endif /* CONFIG_NFS_V4_1 */ @@ -5203,6 +5271,27 @@ out_overflow: return -EIO; } +static int decode_layoutreturn(struct xdr_stream *xdr, + struct nfs4_layoutreturn_res *res) +{ + __be32 *p; + int status; + + status = decode_op_hdr(xdr, OP_LAYOUTRETURN); + if (status) + return status; + p = xdr_inline_decode(xdr, 4); + if (unlikely(!p)) + goto out_overflow; + res->lrs_present = be32_to_cpup(p); + if (res->lrs_present) + status = decode_stateid(xdr, &res->stateid); + return status; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; +} + static int decode_layoutcommit(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_layoutcommit_res *res) @@ -6320,6 +6409,30 @@ out: } /* + * Decode LAYOUTRETURN response + */ +static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, + struct xdr_stream *xdr, + struct nfs4_layoutreturn_res *res) +{ + struct compound_hdr hdr; + int status; + + status = decode_compound_hdr(xdr, &hdr); + if (status) + goto out; + status = decode_sequence(xdr, &res->seq_res, rqstp); + if (status) + goto out; + status = decode_putfh(xdr); + if (status) + goto out; + status = decode_layoutreturn(xdr, res); +out: + return status; +} + +/* * Decode LAYOUTCOMMIT response */ static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, @@ -6547,6 +6660,7 @@ struct rpc_procinfo nfs4_procedures[] = { PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), PROC(LAYOUTGET, enc_layoutget, dec_layoutget), PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), + PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), #endif /* CONFIG_NFS_V4_1 */ }; diff --git a/fs/nfs/nfsroot.c b/fs/nfs/nfsroot.c index c541093a5bf..c4744e1d513 100644 --- a/fs/nfs/nfsroot.c +++ b/fs/nfs/nfsroot.c @@ -87,7 +87,7 @@ #define NFS_ROOT "/tftpboot/%s" /* Default NFSROOT mount options. */ -#define NFS_DEF_OPTIONS "udp" +#define NFS_DEF_OPTIONS "vers=2,udp,rsize=4096,wsize=4096" /* Parameters passed from the kernel command line */ static char nfs_root_parms[256] __initdata = ""; diff --git a/fs/nfs/objlayout/Kbuild b/fs/nfs/objlayout/Kbuild new file mode 100644 index 00000000000..ed30ea072bb --- /dev/null +++ b/fs/nfs/objlayout/Kbuild @@ -0,0 +1,5 @@ +# +# Makefile for the pNFS Objects Layout Driver kernel module +# +objlayoutdriver-y := objio_osd.o pnfs_osd_xdr_cli.o objlayout.o +obj-$(CONFIG_PNFS_OBJLAYOUT) += objlayoutdriver.o diff --git a/fs/nfs/objlayout/objio_osd.c b/fs/nfs/objlayout/objio_osd.c new file mode 100644 index 00000000000..9cf208df1f2 --- /dev/null +++ b/fs/nfs/objlayout/objio_osd.c @@ -0,0 +1,1057 @@ +/* + * pNFS Objects layout implementation over open-osd initiator library + * + * Copyright (C) 2009 Panasas Inc. [year of first publication] + * All rights reserved. + * + * Benny Halevy <bhalevy@panasas.com> + * Boaz Harrosh <bharrosh@panasas.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * See the file COPYING included with this distribution for more details. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Panasas company nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/module.h> +#include <scsi/osd_initiator.h> + +#include "objlayout.h" + +#define NFSDBG_FACILITY NFSDBG_PNFS_LD + +#define _LLU(x) ((unsigned long long)x) + +enum { BIO_MAX_PAGES_KMALLOC = + (PAGE_SIZE - sizeof(struct bio)) / sizeof(struct bio_vec), +}; + +struct objio_dev_ent { + struct nfs4_deviceid_node id_node; + struct osd_dev *od; +}; + +static void +objio_free_deviceid_node(struct nfs4_deviceid_node *d) +{ + struct objio_dev_ent *de = container_of(d, struct objio_dev_ent, id_node); + + dprintk("%s: free od=%p\n", __func__, de->od); + osduld_put_device(de->od); + kfree(de); +} + +static struct objio_dev_ent *_dev_list_find(const struct nfs_server *nfss, + const struct nfs4_deviceid *d_id) +{ + struct nfs4_deviceid_node *d; + struct objio_dev_ent *de; + + d = nfs4_find_get_deviceid(nfss->pnfs_curr_ld, nfss->nfs_client, d_id); + if (!d) + return NULL; + + de = container_of(d, struct objio_dev_ent, id_node); + return de; +} + +static struct objio_dev_ent * +_dev_list_add(const struct nfs_server *nfss, + const struct nfs4_deviceid *d_id, struct osd_dev *od, + gfp_t gfp_flags) +{ + struct nfs4_deviceid_node *d; + struct objio_dev_ent *de = kzalloc(sizeof(*de), gfp_flags); + struct objio_dev_ent *n; + + if (!de) { + dprintk("%s: -ENOMEM od=%p\n", __func__, od); + return NULL; + } + + dprintk("%s: Adding od=%p\n", __func__, od); + nfs4_init_deviceid_node(&de->id_node, + nfss->pnfs_curr_ld, + nfss->nfs_client, + d_id); + de->od = od; + + d = nfs4_insert_deviceid_node(&de->id_node); + n = container_of(d, struct objio_dev_ent, id_node); + if (n != de) { + dprintk("%s: Race with other n->od=%p\n", __func__, n->od); + objio_free_deviceid_node(&de->id_node); + de = n; + } + + atomic_inc(&de->id_node.ref); + return de; +} + +struct caps_buffers { + u8 caps_key[OSD_CRYPTO_KEYID_SIZE]; + u8 creds[OSD_CAP_LEN]; +}; + +struct objio_segment { + struct pnfs_layout_segment lseg; + + struct pnfs_osd_object_cred *comps; + + unsigned mirrors_p1; + unsigned stripe_unit; + unsigned group_width; /* Data stripe_units without integrity comps */ + u64 group_depth; + unsigned group_count; + + unsigned max_io_size; + + unsigned comps_index; + unsigned num_comps; + /* variable length */ + struct objio_dev_ent *ods[]; +}; + +static inline struct objio_segment * +OBJIO_LSEG(struct pnfs_layout_segment *lseg) +{ + return container_of(lseg, struct objio_segment, lseg); +} + +struct objio_state; +typedef ssize_t (*objio_done_fn)(struct objio_state *ios); + +struct objio_state { + /* Generic layer */ + struct objlayout_io_state ol_state; + + struct objio_segment *layout; + + struct kref kref; + objio_done_fn done; + void *private; + + unsigned long length; + unsigned numdevs; /* Actually used devs in this IO */ + /* A per-device variable array of size numdevs */ + struct _objio_per_comp { + struct bio *bio; + struct osd_request *or; + unsigned long length; + u64 offset; + unsigned dev; + } per_dev[]; +}; + +/* Send and wait for a get_device_info of devices in the layout, + then look them up with the osd_initiator library */ +static struct objio_dev_ent *_device_lookup(struct pnfs_layout_hdr *pnfslay, + struct objio_segment *objio_seg, unsigned comp, + gfp_t gfp_flags) +{ + struct pnfs_osd_deviceaddr *deviceaddr; + struct nfs4_deviceid *d_id; + struct objio_dev_ent *ode; + struct osd_dev *od; + struct osd_dev_info odi; + int err; + + d_id = &objio_seg->comps[comp].oc_object_id.oid_device_id; + + ode = _dev_list_find(NFS_SERVER(pnfslay->plh_inode), d_id); + if (ode) + return ode; + + err = objlayout_get_deviceinfo(pnfslay, d_id, &deviceaddr, gfp_flags); + if (unlikely(err)) { + dprintk("%s: objlayout_get_deviceinfo dev(%llx:%llx) =>%d\n", + __func__, _DEVID_LO(d_id), _DEVID_HI(d_id), err); + return ERR_PTR(err); + } + + odi.systemid_len = deviceaddr->oda_systemid.len; + if (odi.systemid_len > sizeof(odi.systemid)) { + err = -EINVAL; + goto out; + } else if (odi.systemid_len) + memcpy(odi.systemid, deviceaddr->oda_systemid.data, + odi.systemid_len); + odi.osdname_len = deviceaddr->oda_osdname.len; + odi.osdname = (u8 *)deviceaddr->oda_osdname.data; + + if (!odi.osdname_len && !odi.systemid_len) { + dprintk("%s: !odi.osdname_len && !odi.systemid_len\n", + __func__); + err = -ENODEV; + goto out; + } + + od = osduld_info_lookup(&odi); + if (unlikely(IS_ERR(od))) { + err = PTR_ERR(od); + dprintk("%s: osduld_info_lookup => %d\n", __func__, err); + goto out; + } + + ode = _dev_list_add(NFS_SERVER(pnfslay->plh_inode), d_id, od, + gfp_flags); + +out: + dprintk("%s: return=%d\n", __func__, err); + objlayout_put_deviceinfo(deviceaddr); + return err ? ERR_PTR(err) : ode; +} + +static int objio_devices_lookup(struct pnfs_layout_hdr *pnfslay, + struct objio_segment *objio_seg, + gfp_t gfp_flags) +{ + unsigned i; + int err; + + /* lookup all devices */ + for (i = 0; i < objio_seg->num_comps; i++) { + struct objio_dev_ent *ode; + + ode = _device_lookup(pnfslay, objio_seg, i, gfp_flags); + if (unlikely(IS_ERR(ode))) { + err = PTR_ERR(ode); + goto out; + } + objio_seg->ods[i] = ode; + } + err = 0; + +out: + dprintk("%s: return=%d\n", __func__, err); + return err; +} + +static int _verify_data_map(struct pnfs_osd_layout *layout) +{ + struct pnfs_osd_data_map *data_map = &layout->olo_map; + u64 stripe_length; + u32 group_width; + +/* FIXME: Only raid0 for now. if not go through MDS */ + if (data_map->odm_raid_algorithm != PNFS_OSD_RAID_0) { + printk(KERN_ERR "Only RAID_0 for now\n"); + return -ENOTSUPP; + } + if (0 != (data_map->odm_num_comps % (data_map->odm_mirror_cnt + 1))) { + printk(KERN_ERR "Data Map wrong, num_comps=%u mirrors=%u\n", + data_map->odm_num_comps, data_map->odm_mirror_cnt); + return -EINVAL; + } + + if (data_map->odm_group_width) + group_width = data_map->odm_group_width; + else + group_width = data_map->odm_num_comps / + (data_map->odm_mirror_cnt + 1); + + stripe_length = (u64)data_map->odm_stripe_unit * group_width; + if (stripe_length >= (1ULL << 32)) { + printk(KERN_ERR "Total Stripe length(0x%llx)" + " >= 32bit is not supported\n", _LLU(stripe_length)); + return -ENOTSUPP; + } + + if (0 != (data_map->odm_stripe_unit & ~PAGE_MASK)) { + printk(KERN_ERR "Stripe Unit(0x%llx)" + " must be Multples of PAGE_SIZE(0x%lx)\n", + _LLU(data_map->odm_stripe_unit), PAGE_SIZE); + return -ENOTSUPP; + } + + return 0; +} + +static void copy_single_comp(struct pnfs_osd_object_cred *cur_comp, + struct pnfs_osd_object_cred *src_comp, + struct caps_buffers *caps_p) +{ + WARN_ON(src_comp->oc_cap_key.cred_len > sizeof(caps_p->caps_key)); + WARN_ON(src_comp->oc_cap.cred_len > sizeof(caps_p->creds)); + + *cur_comp = *src_comp; + + memcpy(caps_p->caps_key, src_comp->oc_cap_key.cred, + sizeof(caps_p->caps_key)); + cur_comp->oc_cap_key.cred = caps_p->caps_key; + + memcpy(caps_p->creds, src_comp->oc_cap.cred, + sizeof(caps_p->creds)); + cur_comp->oc_cap.cred = caps_p->creds; +} + +int objio_alloc_lseg(struct pnfs_layout_segment **outp, + struct pnfs_layout_hdr *pnfslay, + struct pnfs_layout_range *range, + struct xdr_stream *xdr, + gfp_t gfp_flags) +{ + struct objio_segment *objio_seg; + struct pnfs_osd_xdr_decode_layout_iter iter; + struct pnfs_osd_layout layout; + struct pnfs_osd_object_cred *cur_comp, src_comp; + struct caps_buffers *caps_p; + int err; + + err = pnfs_osd_xdr_decode_layout_map(&layout, &iter, xdr); + if (unlikely(err)) + return err; + + err = _verify_data_map(&layout); + if (unlikely(err)) + return err; + + objio_seg = kzalloc(sizeof(*objio_seg) + + sizeof(objio_seg->ods[0]) * layout.olo_num_comps + + sizeof(*objio_seg->comps) * layout.olo_num_comps + + sizeof(struct caps_buffers) * layout.olo_num_comps, + gfp_flags); + if (!objio_seg) + return -ENOMEM; + + objio_seg->comps = (void *)(objio_seg->ods + layout.olo_num_comps); + cur_comp = objio_seg->comps; + caps_p = (void *)(cur_comp + layout.olo_num_comps); + while (pnfs_osd_xdr_decode_layout_comp(&src_comp, &iter, xdr, &err)) + copy_single_comp(cur_comp++, &src_comp, caps_p++); + if (unlikely(err)) + goto err; + + objio_seg->num_comps = layout.olo_num_comps; + objio_seg->comps_index = layout.olo_comps_index; + err = objio_devices_lookup(pnfslay, objio_seg, gfp_flags); + if (err) + goto err; + + objio_seg->mirrors_p1 = layout.olo_map.odm_mirror_cnt + 1; + objio_seg->stripe_unit = layout.olo_map.odm_stripe_unit; + if (layout.olo_map.odm_group_width) { + objio_seg->group_width = layout.olo_map.odm_group_width; + objio_seg->group_depth = layout.olo_map.odm_group_depth; + objio_seg->group_count = layout.olo_map.odm_num_comps / + objio_seg->mirrors_p1 / + objio_seg->group_width; + } else { + objio_seg->group_width = layout.olo_map.odm_num_comps / + objio_seg->mirrors_p1; + objio_seg->group_depth = -1; + objio_seg->group_count = 1; + } + + /* Cache this calculation it will hit for every page */ + objio_seg->max_io_size = (BIO_MAX_PAGES_KMALLOC * PAGE_SIZE - + objio_seg->stripe_unit) * + objio_seg->group_width; + + *outp = &objio_seg->lseg; + return 0; + +err: + kfree(objio_seg); + dprintk("%s: Error: return %d\n", __func__, err); + *outp = NULL; + return err; +} + +void objio_free_lseg(struct pnfs_layout_segment *lseg) +{ + int i; + struct objio_segment *objio_seg = OBJIO_LSEG(lseg); + + for (i = 0; i < objio_seg->num_comps; i++) { + if (!objio_seg->ods[i]) + break; + nfs4_put_deviceid_node(&objio_seg->ods[i]->id_node); + } + kfree(objio_seg); +} + +int objio_alloc_io_state(struct pnfs_layout_segment *lseg, + struct objlayout_io_state **outp, + gfp_t gfp_flags) +{ + struct objio_segment *objio_seg = OBJIO_LSEG(lseg); + struct objio_state *ios; + const unsigned first_size = sizeof(*ios) + + objio_seg->num_comps * sizeof(ios->per_dev[0]); + const unsigned sec_size = objio_seg->num_comps * + sizeof(ios->ol_state.ioerrs[0]); + + ios = kzalloc(first_size + sec_size, gfp_flags); + if (unlikely(!ios)) + return -ENOMEM; + + ios->layout = objio_seg; + ios->ol_state.ioerrs = ((void *)ios) + first_size; + ios->ol_state.num_comps = objio_seg->num_comps; + + *outp = &ios->ol_state; + return 0; +} + +void objio_free_io_state(struct objlayout_io_state *ol_state) +{ + struct objio_state *ios = container_of(ol_state, struct objio_state, + ol_state); + + kfree(ios); +} + +enum pnfs_osd_errno osd_pri_2_pnfs_err(enum osd_err_priority oep) +{ + switch (oep) { + case OSD_ERR_PRI_NO_ERROR: + return (enum pnfs_osd_errno)0; + + case OSD_ERR_PRI_CLEAR_PAGES: + BUG_ON(1); + return 0; + + case OSD_ERR_PRI_RESOURCE: + return PNFS_OSD_ERR_RESOURCE; + case OSD_ERR_PRI_BAD_CRED: + return PNFS_OSD_ERR_BAD_CRED; + case OSD_ERR_PRI_NO_ACCESS: + return PNFS_OSD_ERR_NO_ACCESS; + case OSD_ERR_PRI_UNREACHABLE: + return PNFS_OSD_ERR_UNREACHABLE; + case OSD_ERR_PRI_NOT_FOUND: + return PNFS_OSD_ERR_NOT_FOUND; + case OSD_ERR_PRI_NO_SPACE: + return PNFS_OSD_ERR_NO_SPACE; + default: + WARN_ON(1); + /* fallthrough */ + case OSD_ERR_PRI_EIO: + return PNFS_OSD_ERR_EIO; + } +} + +static void _clear_bio(struct bio *bio) +{ + struct bio_vec *bv; + unsigned i; + + __bio_for_each_segment(bv, bio, i, 0) { + unsigned this_count = bv->bv_len; + + if (likely(PAGE_SIZE == this_count)) + clear_highpage(bv->bv_page); + else + zero_user(bv->bv_page, bv->bv_offset, this_count); + } +} + +static int _io_check(struct objio_state *ios, bool is_write) +{ + enum osd_err_priority oep = OSD_ERR_PRI_NO_ERROR; + int lin_ret = 0; + int i; + + for (i = 0; i < ios->numdevs; i++) { + struct osd_sense_info osi; + struct osd_request *or = ios->per_dev[i].or; + unsigned dev; + int ret; + + if (!or) + continue; + + ret = osd_req_decode_sense(or, &osi); + if (likely(!ret)) + continue; + + if (OSD_ERR_PRI_CLEAR_PAGES == osi.osd_err_pri) { + /* start read offset passed endof file */ + BUG_ON(is_write); + _clear_bio(ios->per_dev[i].bio); + dprintk("%s: start read offset passed end of file " + "offset=0x%llx, length=0x%lx\n", __func__, + _LLU(ios->per_dev[i].offset), + ios->per_dev[i].length); + + continue; /* we recovered */ + } + dev = ios->per_dev[i].dev; + objlayout_io_set_result(&ios->ol_state, dev, + &ios->layout->comps[dev].oc_object_id, + osd_pri_2_pnfs_err(osi.osd_err_pri), + ios->per_dev[i].offset, + ios->per_dev[i].length, + is_write); + + if (osi.osd_err_pri >= oep) { + oep = osi.osd_err_pri; + lin_ret = ret; + } + } + + return lin_ret; +} + +/* + * Common IO state helpers. + */ +static void _io_free(struct objio_state *ios) +{ + unsigned i; + + for (i = 0; i < ios->numdevs; i++) { + struct _objio_per_comp *per_dev = &ios->per_dev[i]; + + if (per_dev->or) { + osd_end_request(per_dev->or); + per_dev->or = NULL; + } + + if (per_dev->bio) { + bio_put(per_dev->bio); + per_dev->bio = NULL; + } + } +} + +struct osd_dev *_io_od(struct objio_state *ios, unsigned dev) +{ + unsigned min_dev = ios->layout->comps_index; + unsigned max_dev = min_dev + ios->layout->num_comps; + + BUG_ON(dev < min_dev || max_dev <= dev); + return ios->layout->ods[dev - min_dev]->od; +} + +struct _striping_info { + u64 obj_offset; + u64 group_length; + unsigned dev; + unsigned unit_off; +}; + +static void _calc_stripe_info(struct objio_state *ios, u64 file_offset, + struct _striping_info *si) +{ + u32 stripe_unit = ios->layout->stripe_unit; + u32 group_width = ios->layout->group_width; + u64 group_depth = ios->layout->group_depth; + u32 U = stripe_unit * group_width; + + u64 T = U * group_depth; + u64 S = T * ios->layout->group_count; + u64 M = div64_u64(file_offset, S); + + /* + G = (L - (M * S)) / T + H = (L - (M * S)) % T + */ + u64 LmodU = file_offset - M * S; + u32 G = div64_u64(LmodU, T); + u64 H = LmodU - G * T; + + u32 N = div_u64(H, U); + + div_u64_rem(file_offset, stripe_unit, &si->unit_off); + si->obj_offset = si->unit_off + (N * stripe_unit) + + (M * group_depth * stripe_unit); + + /* "H - (N * U)" is just "H % U" so it's bound to u32 */ + si->dev = (u32)(H - (N * U)) / stripe_unit + G * group_width; + si->dev *= ios->layout->mirrors_p1; + + si->group_length = T - H; +} + +static int _add_stripe_unit(struct objio_state *ios, unsigned *cur_pg, + unsigned pgbase, struct _objio_per_comp *per_dev, int cur_len, + gfp_t gfp_flags) +{ + unsigned pg = *cur_pg; + struct request_queue *q = + osd_request_queue(_io_od(ios, per_dev->dev)); + + per_dev->length += cur_len; + + if (per_dev->bio == NULL) { + unsigned stripes = ios->layout->num_comps / + ios->layout->mirrors_p1; + unsigned pages_in_stripe = stripes * + (ios->layout->stripe_unit / PAGE_SIZE); + unsigned bio_size = (ios->ol_state.nr_pages + pages_in_stripe) / + stripes; + + if (BIO_MAX_PAGES_KMALLOC < bio_size) + bio_size = BIO_MAX_PAGES_KMALLOC; + + per_dev->bio = bio_kmalloc(gfp_flags, bio_size); + if (unlikely(!per_dev->bio)) { + dprintk("Faild to allocate BIO size=%u\n", bio_size); + return -ENOMEM; + } + } + + while (cur_len > 0) { + unsigned pglen = min_t(unsigned, PAGE_SIZE - pgbase, cur_len); + unsigned added_len; + + BUG_ON(ios->ol_state.nr_pages <= pg); + cur_len -= pglen; + + added_len = bio_add_pc_page(q, per_dev->bio, + ios->ol_state.pages[pg], pglen, pgbase); + if (unlikely(pglen != added_len)) + return -ENOMEM; + pgbase = 0; + ++pg; + } + BUG_ON(cur_len); + + *cur_pg = pg; + return 0; +} + +static int _prepare_one_group(struct objio_state *ios, u64 length, + struct _striping_info *si, unsigned *last_pg, + gfp_t gfp_flags) +{ + unsigned stripe_unit = ios->layout->stripe_unit; + unsigned mirrors_p1 = ios->layout->mirrors_p1; + unsigned devs_in_group = ios->layout->group_width * mirrors_p1; + unsigned dev = si->dev; + unsigned first_dev = dev - (dev % devs_in_group); + unsigned max_comp = ios->numdevs ? ios->numdevs - mirrors_p1 : 0; + unsigned cur_pg = *last_pg; + int ret = 0; + + while (length) { + struct _objio_per_comp *per_dev = &ios->per_dev[dev]; + unsigned cur_len, page_off = 0; + + if (!per_dev->length) { + per_dev->dev = dev; + if (dev < si->dev) { + per_dev->offset = si->obj_offset + stripe_unit - + si->unit_off; + cur_len = stripe_unit; + } else if (dev == si->dev) { + per_dev->offset = si->obj_offset; + cur_len = stripe_unit - si->unit_off; + page_off = si->unit_off & ~PAGE_MASK; + BUG_ON(page_off && + (page_off != ios->ol_state.pgbase)); + } else { /* dev > si->dev */ + per_dev->offset = si->obj_offset - si->unit_off; + cur_len = stripe_unit; + } + + if (max_comp < dev) + max_comp = dev; + } else { + cur_len = stripe_unit; + } + if (cur_len >= length) + cur_len = length; + + ret = _add_stripe_unit(ios, &cur_pg, page_off , per_dev, + cur_len, gfp_flags); + if (unlikely(ret)) + goto out; + + dev += mirrors_p1; + dev = (dev % devs_in_group) + first_dev; + + length -= cur_len; + ios->length += cur_len; + } +out: + ios->numdevs = max_comp + mirrors_p1; + *last_pg = cur_pg; + return ret; +} + +static int _io_rw_pagelist(struct objio_state *ios, gfp_t gfp_flags) +{ + u64 length = ios->ol_state.count; + u64 offset = ios->ol_state.offset; + struct _striping_info si; + unsigned last_pg = 0; + int ret = 0; + + while (length) { + _calc_stripe_info(ios, offset, &si); + + if (length < si.group_length) + si.group_length = length; + + ret = _prepare_one_group(ios, si.group_length, &si, &last_pg, gfp_flags); + if (unlikely(ret)) + goto out; + + offset += si.group_length; + length -= si.group_length; + } + +out: + if (!ios->length) + return ret; + + return 0; +} + +static ssize_t _sync_done(struct objio_state *ios) +{ + struct completion *waiting = ios->private; + + complete(waiting); + return 0; +} + +static void _last_io(struct kref *kref) +{ + struct objio_state *ios = container_of(kref, struct objio_state, kref); + + ios->done(ios); +} + +static void _done_io(struct osd_request *or, void *p) +{ + struct objio_state *ios = p; + + kref_put(&ios->kref, _last_io); +} + +static ssize_t _io_exec(struct objio_state *ios) +{ + DECLARE_COMPLETION_ONSTACK(wait); + ssize_t status = 0; /* sync status */ + unsigned i; + objio_done_fn saved_done_fn = ios->done; + bool sync = ios->ol_state.sync; + + if (sync) { + ios->done = _sync_done; + ios->private = &wait; + } + + kref_init(&ios->kref); + + for (i = 0; i < ios->numdevs; i++) { + struct osd_request *or = ios->per_dev[i].or; + + if (!or) + continue; + + kref_get(&ios->kref); + osd_execute_request_async(or, _done_io, ios); + } + + kref_put(&ios->kref, _last_io); + + if (sync) { + wait_for_completion(&wait); + status = saved_done_fn(ios); + } + + return status; +} + +/* + * read + */ +static ssize_t _read_done(struct objio_state *ios) +{ + ssize_t status; + int ret = _io_check(ios, false); + + _io_free(ios); + + if (likely(!ret)) + status = ios->length; + else + status = ret; + + objlayout_read_done(&ios->ol_state, status, ios->ol_state.sync); + return status; +} + +static int _read_mirrors(struct objio_state *ios, unsigned cur_comp) +{ + struct osd_request *or = NULL; + struct _objio_per_comp *per_dev = &ios->per_dev[cur_comp]; + unsigned dev = per_dev->dev; + struct pnfs_osd_object_cred *cred = + &ios->layout->comps[dev]; + struct osd_obj_id obj = { + .partition = cred->oc_object_id.oid_partition_id, + .id = cred->oc_object_id.oid_object_id, + }; + int ret; + + or = osd_start_request(_io_od(ios, dev), GFP_KERNEL); + if (unlikely(!or)) { + ret = -ENOMEM; + goto err; + } + per_dev->or = or; + + osd_req_read(or, &obj, per_dev->offset, per_dev->bio, per_dev->length); + + ret = osd_finalize_request(or, 0, cred->oc_cap.cred, NULL); + if (ret) { + dprintk("%s: Faild to osd_finalize_request() => %d\n", + __func__, ret); + goto err; + } + + dprintk("%s:[%d] dev=%d obj=0x%llx start=0x%llx length=0x%lx\n", + __func__, cur_comp, dev, obj.id, _LLU(per_dev->offset), + per_dev->length); + +err: + return ret; +} + +static ssize_t _read_exec(struct objio_state *ios) +{ + unsigned i; + int ret; + + for (i = 0; i < ios->numdevs; i += ios->layout->mirrors_p1) { + if (!ios->per_dev[i].length) + continue; + ret = _read_mirrors(ios, i); + if (unlikely(ret)) + goto err; + } + + ios->done = _read_done; + return _io_exec(ios); /* In sync mode exec returns the io status */ + +err: + _io_free(ios); + return ret; +} + +ssize_t objio_read_pagelist(struct objlayout_io_state *ol_state) +{ + struct objio_state *ios = container_of(ol_state, struct objio_state, + ol_state); + int ret; + + ret = _io_rw_pagelist(ios, GFP_KERNEL); + if (unlikely(ret)) + return ret; + + return _read_exec(ios); +} + +/* + * write + */ +static ssize_t _write_done(struct objio_state *ios) +{ + ssize_t status; + int ret = _io_check(ios, true); + + _io_free(ios); + + if (likely(!ret)) { + /* FIXME: should be based on the OSD's persistence model + * See OSD2r05 Section 4.13 Data persistence model */ + ios->ol_state.committed = NFS_FILE_SYNC; + status = ios->length; + } else { + status = ret; + } + + objlayout_write_done(&ios->ol_state, status, ios->ol_state.sync); + return status; +} + +static int _write_mirrors(struct objio_state *ios, unsigned cur_comp) +{ + struct _objio_per_comp *master_dev = &ios->per_dev[cur_comp]; + unsigned dev = ios->per_dev[cur_comp].dev; + unsigned last_comp = cur_comp + ios->layout->mirrors_p1; + int ret; + + for (; cur_comp < last_comp; ++cur_comp, ++dev) { + struct osd_request *or = NULL; + struct pnfs_osd_object_cred *cred = + &ios->layout->comps[dev]; + struct osd_obj_id obj = { + .partition = cred->oc_object_id.oid_partition_id, + .id = cred->oc_object_id.oid_object_id, + }; + struct _objio_per_comp *per_dev = &ios->per_dev[cur_comp]; + struct bio *bio; + + or = osd_start_request(_io_od(ios, dev), GFP_NOFS); + if (unlikely(!or)) { + ret = -ENOMEM; + goto err; + } + per_dev->or = or; + + if (per_dev != master_dev) { + bio = bio_kmalloc(GFP_NOFS, + master_dev->bio->bi_max_vecs); + if (unlikely(!bio)) { + dprintk("Faild to allocate BIO size=%u\n", + master_dev->bio->bi_max_vecs); + ret = -ENOMEM; + goto err; + } + + __bio_clone(bio, master_dev->bio); + bio->bi_bdev = NULL; + bio->bi_next = NULL; + per_dev->bio = bio; + per_dev->dev = dev; + per_dev->length = master_dev->length; + per_dev->offset = master_dev->offset; + } else { + bio = master_dev->bio; + bio->bi_rw |= REQ_WRITE; + } + + osd_req_write(or, &obj, per_dev->offset, bio, per_dev->length); + + ret = osd_finalize_request(or, 0, cred->oc_cap.cred, NULL); + if (ret) { + dprintk("%s: Faild to osd_finalize_request() => %d\n", + __func__, ret); + goto err; + } + + dprintk("%s:[%d] dev=%d obj=0x%llx start=0x%llx length=0x%lx\n", + __func__, cur_comp, dev, obj.id, _LLU(per_dev->offset), + per_dev->length); + } + +err: + return ret; +} + +static ssize_t _write_exec(struct objio_state *ios) +{ + unsigned i; + int ret; + + for (i = 0; i < ios->numdevs; i += ios->layout->mirrors_p1) { + if (!ios->per_dev[i].length) + continue; + ret = _write_mirrors(ios, i); + if (unlikely(ret)) + goto err; + } + + ios->done = _write_done; + return _io_exec(ios); /* In sync mode exec returns the io->status */ + +err: + _io_free(ios); + return ret; +} + +ssize_t objio_write_pagelist(struct objlayout_io_state *ol_state, bool stable) +{ + struct objio_state *ios = container_of(ol_state, struct objio_state, + ol_state); + int ret; + + /* TODO: ios->stable = stable; */ + ret = _io_rw_pagelist(ios, GFP_NOFS); + if (unlikely(ret)) + return ret; + + return _write_exec(ios); +} + +static bool objio_pg_test(struct nfs_pageio_descriptor *pgio, + struct nfs_page *prev, struct nfs_page *req) +{ + if (!pnfs_generic_pg_test(pgio, prev, req)) + return false; + + return pgio->pg_count + req->wb_bytes <= + OBJIO_LSEG(pgio->pg_lseg)->max_io_size; +} + +static struct pnfs_layoutdriver_type objlayout_type = { + .id = LAYOUT_OSD2_OBJECTS, + .name = "LAYOUT_OSD2_OBJECTS", + .flags = PNFS_LAYOUTRET_ON_SETATTR, + + .alloc_layout_hdr = objlayout_alloc_layout_hdr, + .free_layout_hdr = objlayout_free_layout_hdr, + + .alloc_lseg = objlayout_alloc_lseg, + .free_lseg = objlayout_free_lseg, + + .read_pagelist = objlayout_read_pagelist, + .write_pagelist = objlayout_write_pagelist, + .pg_test = objio_pg_test, + + .free_deviceid_node = objio_free_deviceid_node, + + .encode_layoutcommit = objlayout_encode_layoutcommit, + .encode_layoutreturn = objlayout_encode_layoutreturn, +}; + +MODULE_DESCRIPTION("pNFS Layout Driver for OSD2 objects"); +MODULE_AUTHOR("Benny Halevy <bhalevy@panasas.com>"); +MODULE_LICENSE("GPL"); + +static int __init +objlayout_init(void) +{ + int ret = pnfs_register_layoutdriver(&objlayout_type); + + if (ret) + printk(KERN_INFO + "%s: Registering OSD pNFS Layout Driver failed: error=%d\n", + __func__, ret); + else + printk(KERN_INFO "%s: Registered OSD pNFS Layout Driver\n", + __func__); + return ret; +} + +static void __exit +objlayout_exit(void) +{ + pnfs_unregister_layoutdriver(&objlayout_type); + printk(KERN_INFO "%s: Unregistered OSD pNFS Layout Driver\n", + __func__); +} + +module_init(objlayout_init); +module_exit(objlayout_exit); diff --git a/fs/nfs/objlayout/objlayout.c b/fs/nfs/objlayout/objlayout.c new file mode 100644 index 00000000000..dc3956c0de8 --- /dev/null +++ b/fs/nfs/objlayout/objlayout.c @@ -0,0 +1,712 @@ +/* + * pNFS Objects layout driver high level definitions + * + * Copyright (C) 2007 Panasas Inc. [year of first publication] + * All rights reserved. + * + * Benny Halevy <bhalevy@panasas.com> + * Boaz Harrosh <bharrosh@panasas.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * See the file COPYING included with this distribution for more details. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Panasas company nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <scsi/osd_initiator.h> +#include "objlayout.h" + +#define NFSDBG_FACILITY NFSDBG_PNFS_LD +/* + * Create a objlayout layout structure for the given inode and return it. + */ +struct pnfs_layout_hdr * +objlayout_alloc_layout_hdr(struct inode *inode, gfp_t gfp_flags) +{ + struct objlayout *objlay; + + objlay = kzalloc(sizeof(struct objlayout), gfp_flags); + if (objlay) { + spin_lock_init(&objlay->lock); + INIT_LIST_HEAD(&objlay->err_list); + } + dprintk("%s: Return %p\n", __func__, objlay); + return &objlay->pnfs_layout; +} + +/* + * Free an objlayout layout structure + */ +void +objlayout_free_layout_hdr(struct pnfs_layout_hdr *lo) +{ + struct objlayout *objlay = OBJLAYOUT(lo); + + dprintk("%s: objlay %p\n", __func__, objlay); + + WARN_ON(!list_empty(&objlay->err_list)); + kfree(objlay); +} + +/* + * Unmarshall layout and store it in pnfslay. + */ +struct pnfs_layout_segment * +objlayout_alloc_lseg(struct pnfs_layout_hdr *pnfslay, + struct nfs4_layoutget_res *lgr, + gfp_t gfp_flags) +{ + int status = -ENOMEM; + struct xdr_stream stream; + struct xdr_buf buf = { + .pages = lgr->layoutp->pages, + .page_len = lgr->layoutp->len, + .buflen = lgr->layoutp->len, + .len = lgr->layoutp->len, + }; + struct page *scratch; + struct pnfs_layout_segment *lseg; + + dprintk("%s: Begin pnfslay %p\n", __func__, pnfslay); + + scratch = alloc_page(gfp_flags); + if (!scratch) + goto err_nofree; + + xdr_init_decode(&stream, &buf, NULL); + xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE); + + status = objio_alloc_lseg(&lseg, pnfslay, &lgr->range, &stream, gfp_flags); + if (unlikely(status)) { + dprintk("%s: objio_alloc_lseg Return err %d\n", __func__, + status); + goto err; + } + + __free_page(scratch); + + dprintk("%s: Return %p\n", __func__, lseg); + return lseg; + +err: + __free_page(scratch); +err_nofree: + dprintk("%s: Err Return=>%d\n", __func__, status); + return ERR_PTR(status); +} + +/* + * Free a layout segement + */ +void +objlayout_free_lseg(struct pnfs_layout_segment *lseg) +{ + dprintk("%s: freeing layout segment %p\n", __func__, lseg); + + if (unlikely(!lseg)) + return; + + objio_free_lseg(lseg); +} + +/* + * I/O Operations + */ +static inline u64 +end_offset(u64 start, u64 len) +{ + u64 end; + + end = start + len; + return end >= start ? end : NFS4_MAX_UINT64; +} + +/* last octet in a range */ +static inline u64 +last_byte_offset(u64 start, u64 len) +{ + u64 end; + + BUG_ON(!len); + end = start + len; + return end > start ? end - 1 : NFS4_MAX_UINT64; +} + +static struct objlayout_io_state * +objlayout_alloc_io_state(struct pnfs_layout_hdr *pnfs_layout_type, + struct page **pages, + unsigned pgbase, + loff_t offset, + size_t count, + struct pnfs_layout_segment *lseg, + void *rpcdata, + gfp_t gfp_flags) +{ + struct objlayout_io_state *state; + u64 lseg_end_offset; + + dprintk("%s: allocating io_state\n", __func__); + if (objio_alloc_io_state(lseg, &state, gfp_flags)) + return NULL; + + BUG_ON(offset < lseg->pls_range.offset); + lseg_end_offset = end_offset(lseg->pls_range.offset, + lseg->pls_range.length); + BUG_ON(offset >= lseg_end_offset); + if (offset + count > lseg_end_offset) { + count = lseg->pls_range.length - + (offset - lseg->pls_range.offset); + dprintk("%s: truncated count %Zd\n", __func__, count); + } + + if (pgbase > PAGE_SIZE) { + pages += pgbase >> PAGE_SHIFT; + pgbase &= ~PAGE_MASK; + } + + INIT_LIST_HEAD(&state->err_list); + state->lseg = lseg; + state->rpcdata = rpcdata; + state->pages = pages; + state->pgbase = pgbase; + state->nr_pages = (pgbase + count + PAGE_SIZE - 1) >> PAGE_SHIFT; + state->offset = offset; + state->count = count; + state->sync = 0; + + return state; +} + +static void +objlayout_free_io_state(struct objlayout_io_state *state) +{ + dprintk("%s: freeing io_state\n", __func__); + if (unlikely(!state)) + return; + + objio_free_io_state(state); +} + +/* + * I/O done common code + */ +static void +objlayout_iodone(struct objlayout_io_state *state) +{ + dprintk("%s: state %p status\n", __func__, state); + + if (likely(state->status >= 0)) { + objlayout_free_io_state(state); + } else { + struct objlayout *objlay = OBJLAYOUT(state->lseg->pls_layout); + + spin_lock(&objlay->lock); + objlay->delta_space_valid = OBJ_DSU_INVALID; + list_add(&objlay->err_list, &state->err_list); + spin_unlock(&objlay->lock); + } +} + +/* + * objlayout_io_set_result - Set an osd_error code on a specific osd comp. + * + * The @index component IO failed (error returned from target). Register + * the error for later reporting at layout-return. + */ +void +objlayout_io_set_result(struct objlayout_io_state *state, unsigned index, + struct pnfs_osd_objid *pooid, int osd_error, + u64 offset, u64 length, bool is_write) +{ + struct pnfs_osd_ioerr *ioerr = &state->ioerrs[index]; + + BUG_ON(index >= state->num_comps); + if (osd_error) { + ioerr->oer_component = *pooid; + ioerr->oer_comp_offset = offset; + ioerr->oer_comp_length = length; + ioerr->oer_iswrite = is_write; + ioerr->oer_errno = osd_error; + + dprintk("%s: err[%d]: errno=%d is_write=%d dev(%llx:%llx) " + "par=0x%llx obj=0x%llx offset=0x%llx length=0x%llx\n", + __func__, index, ioerr->oer_errno, + ioerr->oer_iswrite, + _DEVID_LO(&ioerr->oer_component.oid_device_id), + _DEVID_HI(&ioerr->oer_component.oid_device_id), + ioerr->oer_component.oid_partition_id, + ioerr->oer_component.oid_object_id, + ioerr->oer_comp_offset, + ioerr->oer_comp_length); + } else { + /* User need not call if no error is reported */ + ioerr->oer_errno = 0; + } +} + +/* Function scheduled on rpc workqueue to call ->nfs_readlist_complete(). + * This is because the osd completion is called with ints-off from + * the block layer + */ +static void _rpc_read_complete(struct work_struct *work) +{ + struct rpc_task *task; + struct nfs_read_data *rdata; + + dprintk("%s enter\n", __func__); + task = container_of(work, struct rpc_task, u.tk_work); + rdata = container_of(task, struct nfs_read_data, task); + + pnfs_ld_read_done(rdata); +} + +void +objlayout_read_done(struct objlayout_io_state *state, ssize_t status, bool sync) +{ + int eof = state->eof; + struct nfs_read_data *rdata; + + state->status = status; + dprintk("%s: Begin status=%ld eof=%d\n", __func__, status, eof); + rdata = state->rpcdata; + rdata->task.tk_status = status; + if (status >= 0) { + rdata->res.count = status; + rdata->res.eof = eof; + } + objlayout_iodone(state); + /* must not use state after this point */ + + if (sync) + pnfs_ld_read_done(rdata); + else { + INIT_WORK(&rdata->task.u.tk_work, _rpc_read_complete); + schedule_work(&rdata->task.u.tk_work); + } +} + +/* + * Perform sync or async reads. + */ +enum pnfs_try_status +objlayout_read_pagelist(struct nfs_read_data *rdata) +{ + loff_t offset = rdata->args.offset; + size_t count = rdata->args.count; + struct objlayout_io_state *state; + ssize_t status = 0; + loff_t eof; + + dprintk("%s: Begin inode %p offset %llu count %d\n", + __func__, rdata->inode, offset, (int)count); + + eof = i_size_read(rdata->inode); + if (unlikely(offset + count > eof)) { + if (offset >= eof) { + status = 0; + rdata->res.count = 0; + rdata->res.eof = 1; + goto out; + } + count = eof - offset; + } + + state = objlayout_alloc_io_state(NFS_I(rdata->inode)->layout, + rdata->args.pages, rdata->args.pgbase, + offset, count, + rdata->lseg, rdata, + GFP_KERNEL); + if (unlikely(!state)) { + status = -ENOMEM; + goto out; + } + + state->eof = state->offset + state->count >= eof; + + status = objio_read_pagelist(state); + out: + dprintk("%s: Return status %Zd\n", __func__, status); + rdata->pnfs_error = status; + return PNFS_ATTEMPTED; +} + +/* Function scheduled on rpc workqueue to call ->nfs_writelist_complete(). + * This is because the osd completion is called with ints-off from + * the block layer + */ +static void _rpc_write_complete(struct work_struct *work) +{ + struct rpc_task *task; + struct nfs_write_data *wdata; + + dprintk("%s enter\n", __func__); + task = container_of(work, struct rpc_task, u.tk_work); + wdata = container_of(task, struct nfs_write_data, task); + + pnfs_ld_write_done(wdata); +} + +void +objlayout_write_done(struct objlayout_io_state *state, ssize_t status, + bool sync) +{ + struct nfs_write_data *wdata; + + dprintk("%s: Begin\n", __func__); + wdata = state->rpcdata; + state->status = status; + wdata->task.tk_status = status; + if (status >= 0) { + wdata->res.count = status; + wdata->verf.committed = state->committed; + dprintk("%s: Return status %d committed %d\n", + __func__, wdata->task.tk_status, + wdata->verf.committed); + } else + dprintk("%s: Return status %d\n", + __func__, wdata->task.tk_status); + objlayout_iodone(state); + /* must not use state after this point */ + + if (sync) + pnfs_ld_write_done(wdata); + else { + INIT_WORK(&wdata->task.u.tk_work, _rpc_write_complete); + schedule_work(&wdata->task.u.tk_work); + } +} + +/* + * Perform sync or async writes. + */ +enum pnfs_try_status +objlayout_write_pagelist(struct nfs_write_data *wdata, + int how) +{ + struct objlayout_io_state *state; + ssize_t status; + + dprintk("%s: Begin inode %p offset %llu count %u\n", + __func__, wdata->inode, wdata->args.offset, wdata->args.count); + + state = objlayout_alloc_io_state(NFS_I(wdata->inode)->layout, + wdata->args.pages, + wdata->args.pgbase, + wdata->args.offset, + wdata->args.count, + wdata->lseg, wdata, + GFP_NOFS); + if (unlikely(!state)) { + status = -ENOMEM; + goto out; + } + + state->sync = how & FLUSH_SYNC; + + status = objio_write_pagelist(state, how & FLUSH_STABLE); + out: + dprintk("%s: Return status %Zd\n", __func__, status); + wdata->pnfs_error = status; + return PNFS_ATTEMPTED; +} + +void +objlayout_encode_layoutcommit(struct pnfs_layout_hdr *pnfslay, + struct xdr_stream *xdr, + const struct nfs4_layoutcommit_args *args) +{ + struct objlayout *objlay = OBJLAYOUT(pnfslay); + struct pnfs_osd_layoutupdate lou; + __be32 *start; + + dprintk("%s: Begin\n", __func__); + + spin_lock(&objlay->lock); + lou.dsu_valid = (objlay->delta_space_valid == OBJ_DSU_VALID); + lou.dsu_delta = objlay->delta_space_used; + objlay->delta_space_used = 0; + objlay->delta_space_valid = OBJ_DSU_INIT; + lou.olu_ioerr_flag = !list_empty(&objlay->err_list); + spin_unlock(&objlay->lock); + + start = xdr_reserve_space(xdr, 4); + + BUG_ON(pnfs_osd_xdr_encode_layoutupdate(xdr, &lou)); + + *start = cpu_to_be32((xdr->p - start - 1) * 4); + + dprintk("%s: Return delta_space_used %lld err %d\n", __func__, + lou.dsu_delta, lou.olu_ioerr_flag); +} + +static int +err_prio(u32 oer_errno) +{ + switch (oer_errno) { + case 0: + return 0; + + case PNFS_OSD_ERR_RESOURCE: + return OSD_ERR_PRI_RESOURCE; + case PNFS_OSD_ERR_BAD_CRED: + return OSD_ERR_PRI_BAD_CRED; + case PNFS_OSD_ERR_NO_ACCESS: + return OSD_ERR_PRI_NO_ACCESS; + case PNFS_OSD_ERR_UNREACHABLE: + return OSD_ERR_PRI_UNREACHABLE; + case PNFS_OSD_ERR_NOT_FOUND: + return OSD_ERR_PRI_NOT_FOUND; + case PNFS_OSD_ERR_NO_SPACE: + return OSD_ERR_PRI_NO_SPACE; + default: + WARN_ON(1); + /* fallthrough */ + case PNFS_OSD_ERR_EIO: + return OSD_ERR_PRI_EIO; + } +} + +static void +merge_ioerr(struct pnfs_osd_ioerr *dest_err, + const struct pnfs_osd_ioerr *src_err) +{ + u64 dest_end, src_end; + + if (!dest_err->oer_errno) { + *dest_err = *src_err; + /* accumulated device must be blank */ + memset(&dest_err->oer_component.oid_device_id, 0, + sizeof(dest_err->oer_component.oid_device_id)); + + return; + } + + if (dest_err->oer_component.oid_partition_id != + src_err->oer_component.oid_partition_id) + dest_err->oer_component.oid_partition_id = 0; + + if (dest_err->oer_component.oid_object_id != + src_err->oer_component.oid_object_id) + dest_err->oer_component.oid_object_id = 0; + + if (dest_err->oer_comp_offset > src_err->oer_comp_offset) + dest_err->oer_comp_offset = src_err->oer_comp_offset; + + dest_end = end_offset(dest_err->oer_comp_offset, + dest_err->oer_comp_length); + src_end = end_offset(src_err->oer_comp_offset, + src_err->oer_comp_length); + if (dest_end < src_end) + dest_end = src_end; + + dest_err->oer_comp_length = dest_end - dest_err->oer_comp_offset; + + if ((src_err->oer_iswrite == dest_err->oer_iswrite) && + (err_prio(src_err->oer_errno) > err_prio(dest_err->oer_errno))) { + dest_err->oer_errno = src_err->oer_errno; + } else if (src_err->oer_iswrite) { + dest_err->oer_iswrite = true; + dest_err->oer_errno = src_err->oer_errno; + } +} + +static void +encode_accumulated_error(struct objlayout *objlay, __be32 *p) +{ + struct objlayout_io_state *state, *tmp; + struct pnfs_osd_ioerr accumulated_err = {.oer_errno = 0}; + + list_for_each_entry_safe(state, tmp, &objlay->err_list, err_list) { + unsigned i; + + for (i = 0; i < state->num_comps; i++) { + struct pnfs_osd_ioerr *ioerr = &state->ioerrs[i]; + + if (!ioerr->oer_errno) + continue; + + printk(KERN_ERR "%s: err[%d]: errno=%d is_write=%d " + "dev(%llx:%llx) par=0x%llx obj=0x%llx " + "offset=0x%llx length=0x%llx\n", + __func__, i, ioerr->oer_errno, + ioerr->oer_iswrite, + _DEVID_LO(&ioerr->oer_component.oid_device_id), + _DEVID_HI(&ioerr->oer_component.oid_device_id), + ioerr->oer_component.oid_partition_id, + ioerr->oer_component.oid_object_id, + ioerr->oer_comp_offset, + ioerr->oer_comp_length); + + merge_ioerr(&accumulated_err, ioerr); + } + list_del(&state->err_list); + objlayout_free_io_state(state); + } + + pnfs_osd_xdr_encode_ioerr(p, &accumulated_err); +} + +void +objlayout_encode_layoutreturn(struct pnfs_layout_hdr *pnfslay, + struct xdr_stream *xdr, + const struct nfs4_layoutreturn_args *args) +{ + struct objlayout *objlay = OBJLAYOUT(pnfslay); + struct objlayout_io_state *state, *tmp; + __be32 *start; + + dprintk("%s: Begin\n", __func__); + start = xdr_reserve_space(xdr, 4); + BUG_ON(!start); + + spin_lock(&objlay->lock); + + list_for_each_entry_safe(state, tmp, &objlay->err_list, err_list) { + __be32 *last_xdr = NULL, *p; + unsigned i; + int res = 0; + + for (i = 0; i < state->num_comps; i++) { + struct pnfs_osd_ioerr *ioerr = &state->ioerrs[i]; + + if (!ioerr->oer_errno) + continue; + + dprintk("%s: err[%d]: errno=%d is_write=%d " + "dev(%llx:%llx) par=0x%llx obj=0x%llx " + "offset=0x%llx length=0x%llx\n", + __func__, i, ioerr->oer_errno, + ioerr->oer_iswrite, + _DEVID_LO(&ioerr->oer_component.oid_device_id), + _DEVID_HI(&ioerr->oer_component.oid_device_id), + ioerr->oer_component.oid_partition_id, + ioerr->oer_component.oid_object_id, + ioerr->oer_comp_offset, + ioerr->oer_comp_length); + + p = pnfs_osd_xdr_ioerr_reserve_space(xdr); + if (unlikely(!p)) { + res = -E2BIG; + break; /* accumulated_error */ + } + + last_xdr = p; + pnfs_osd_xdr_encode_ioerr(p, &state->ioerrs[i]); + } + + /* TODO: use xdr_write_pages */ + if (unlikely(res)) { + /* no space for even one error descriptor */ + BUG_ON(!last_xdr); + + /* we've encountered a situation with lots and lots of + * errors and no space to encode them all. Use the last + * available slot to report the union of all the + * remaining errors. + */ + encode_accumulated_error(objlay, last_xdr); + goto loop_done; + } + list_del(&state->err_list); + objlayout_free_io_state(state); + } +loop_done: + spin_unlock(&objlay->lock); + + *start = cpu_to_be32((xdr->p - start - 1) * 4); + dprintk("%s: Return\n", __func__); +} + + +/* + * Get Device Info API for io engines + */ +struct objlayout_deviceinfo { + struct page *page; + struct pnfs_osd_deviceaddr da; /* This must be last */ +}; + +/* Initialize and call nfs_getdeviceinfo, then decode and return a + * "struct pnfs_osd_deviceaddr *" Eventually objlayout_put_deviceinfo() + * should be called. + */ +int objlayout_get_deviceinfo(struct pnfs_layout_hdr *pnfslay, + struct nfs4_deviceid *d_id, struct pnfs_osd_deviceaddr **deviceaddr, + gfp_t gfp_flags) +{ + struct objlayout_deviceinfo *odi; + struct pnfs_device pd; + struct super_block *sb; + struct page *page, **pages; + u32 *p; + int err; + + page = alloc_page(gfp_flags); + if (!page) + return -ENOMEM; + + pages = &page; + pd.pages = pages; + + memcpy(&pd.dev_id, d_id, sizeof(*d_id)); + pd.layout_type = LAYOUT_OSD2_OBJECTS; + pd.pages = &page; + pd.pgbase = 0; + pd.pglen = PAGE_SIZE; + pd.mincount = 0; + + sb = pnfslay->plh_inode->i_sb; + err = nfs4_proc_getdeviceinfo(NFS_SERVER(pnfslay->plh_inode), &pd); + dprintk("%s nfs_getdeviceinfo returned %d\n", __func__, err); + if (err) + goto err_out; + + p = page_address(page); + odi = kzalloc(sizeof(*odi), gfp_flags); + if (!odi) { + err = -ENOMEM; + goto err_out; + } + pnfs_osd_xdr_decode_deviceaddr(&odi->da, p); + odi->page = page; + *deviceaddr = &odi->da; + return 0; + +err_out: + __free_page(page); + return err; +} + +void objlayout_put_deviceinfo(struct pnfs_osd_deviceaddr *deviceaddr) +{ + struct objlayout_deviceinfo *odi = container_of(deviceaddr, + struct objlayout_deviceinfo, + da); + + __free_page(odi->page); + kfree(odi); +} diff --git a/fs/nfs/objlayout/objlayout.h b/fs/nfs/objlayout/objlayout.h new file mode 100644 index 00000000000..a8244c8e042 --- /dev/null +++ b/fs/nfs/objlayout/objlayout.h @@ -0,0 +1,187 @@ +/* + * Data types and function declerations for interfacing with the + * pNFS standard object layout driver. + * + * Copyright (C) 2007 Panasas Inc. [year of first publication] + * All rights reserved. + * + * Benny Halevy <bhalevy@panasas.com> + * Boaz Harrosh <bharrosh@panasas.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * See the file COPYING included with this distribution for more details. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Panasas company nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _OBJLAYOUT_H +#define _OBJLAYOUT_H + +#include <linux/nfs_fs.h> +#include <linux/pnfs_osd_xdr.h> +#include "../pnfs.h" + +/* + * per-inode layout + */ +struct objlayout { + struct pnfs_layout_hdr pnfs_layout; + + /* for layout_commit */ + enum osd_delta_space_valid_enum { + OBJ_DSU_INIT = 0, + OBJ_DSU_VALID, + OBJ_DSU_INVALID, + } delta_space_valid; + s64 delta_space_used; /* consumed by write ops */ + + /* for layout_return */ + spinlock_t lock; + struct list_head err_list; +}; + +static inline struct objlayout * +OBJLAYOUT(struct pnfs_layout_hdr *lo) +{ + return container_of(lo, struct objlayout, pnfs_layout); +} + +/* + * per-I/O operation state + * embedded in objects provider io_state data structure + */ +struct objlayout_io_state { + struct pnfs_layout_segment *lseg; + + struct page **pages; + unsigned pgbase; + unsigned nr_pages; + unsigned long count; + loff_t offset; + bool sync; + + void *rpcdata; + int status; /* res */ + int eof; /* res */ + int committed; /* res */ + + /* Error reporting (layout_return) */ + struct list_head err_list; + unsigned num_comps; + /* Pointer to array of error descriptors of size num_comps. + * It should contain as many entries as devices in the osd_layout + * that participate in the I/O. It is up to the io_engine to allocate + * needed space and set num_comps. + */ + struct pnfs_osd_ioerr *ioerrs; +}; + +/* + * Raid engine I/O API + */ +extern int objio_alloc_lseg(struct pnfs_layout_segment **outp, + struct pnfs_layout_hdr *pnfslay, + struct pnfs_layout_range *range, + struct xdr_stream *xdr, + gfp_t gfp_flags); +extern void objio_free_lseg(struct pnfs_layout_segment *lseg); + +extern int objio_alloc_io_state( + struct pnfs_layout_segment *lseg, + struct objlayout_io_state **outp, + gfp_t gfp_flags); +extern void objio_free_io_state(struct objlayout_io_state *state); + +extern ssize_t objio_read_pagelist(struct objlayout_io_state *ol_state); +extern ssize_t objio_write_pagelist(struct objlayout_io_state *ol_state, + bool stable); + +/* + * callback API + */ +extern void objlayout_io_set_result(struct objlayout_io_state *state, + unsigned index, struct pnfs_osd_objid *pooid, + int osd_error, u64 offset, u64 length, bool is_write); + +static inline void +objlayout_add_delta_space_used(struct objlayout_io_state *state, s64 space_used) +{ + struct objlayout *objlay = OBJLAYOUT(state->lseg->pls_layout); + + /* If one of the I/Os errored out and the delta_space_used was + * invalid we render the complete report as invalid. Protocol mandate + * the DSU be accurate or not reported. + */ + spin_lock(&objlay->lock); + if (objlay->delta_space_valid != OBJ_DSU_INVALID) { + objlay->delta_space_valid = OBJ_DSU_VALID; + objlay->delta_space_used += space_used; + } + spin_unlock(&objlay->lock); +} + +extern void objlayout_read_done(struct objlayout_io_state *state, + ssize_t status, bool sync); +extern void objlayout_write_done(struct objlayout_io_state *state, + ssize_t status, bool sync); + +extern int objlayout_get_deviceinfo(struct pnfs_layout_hdr *pnfslay, + struct nfs4_deviceid *d_id, struct pnfs_osd_deviceaddr **deviceaddr, + gfp_t gfp_flags); +extern void objlayout_put_deviceinfo(struct pnfs_osd_deviceaddr *deviceaddr); + +/* + * exported generic objects function vectors + */ + +extern struct pnfs_layout_hdr *objlayout_alloc_layout_hdr(struct inode *, gfp_t gfp_flags); +extern void objlayout_free_layout_hdr(struct pnfs_layout_hdr *); + +extern struct pnfs_layout_segment *objlayout_alloc_lseg( + struct pnfs_layout_hdr *, + struct nfs4_layoutget_res *, + gfp_t gfp_flags); +extern void objlayout_free_lseg(struct pnfs_layout_segment *); + +extern enum pnfs_try_status objlayout_read_pagelist( + struct nfs_read_data *); + +extern enum pnfs_try_status objlayout_write_pagelist( + struct nfs_write_data *, + int how); + +extern void objlayout_encode_layoutcommit( + struct pnfs_layout_hdr *, + struct xdr_stream *, + const struct nfs4_layoutcommit_args *); + +extern void objlayout_encode_layoutreturn( + struct pnfs_layout_hdr *, + struct xdr_stream *, + const struct nfs4_layoutreturn_args *); + +#endif /* _OBJLAYOUT_H */ diff --git a/fs/nfs/objlayout/pnfs_osd_xdr_cli.c b/fs/nfs/objlayout/pnfs_osd_xdr_cli.c new file mode 100644 index 00000000000..16fc758e912 --- /dev/null +++ b/fs/nfs/objlayout/pnfs_osd_xdr_cli.c @@ -0,0 +1,412 @@ +/* + * Object-Based pNFS Layout XDR layer + * + * Copyright (C) 2007 Panasas Inc. [year of first publication] + * All rights reserved. + * + * Benny Halevy <bhalevy@panasas.com> + * Boaz Harrosh <bharrosh@panasas.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * See the file COPYING included with this distribution for more details. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Panasas company nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/pnfs_osd_xdr.h> + +#define NFSDBG_FACILITY NFSDBG_PNFS_LD + +/* + * The following implementation is based on RFC5664 + */ + +/* + * struct pnfs_osd_objid { + * struct nfs4_deviceid oid_device_id; + * u64 oid_partition_id; + * u64 oid_object_id; + * }; // xdr size 32 bytes + */ +static __be32 * +_osd_xdr_decode_objid(__be32 *p, struct pnfs_osd_objid *objid) +{ + p = xdr_decode_opaque_fixed(p, objid->oid_device_id.data, + sizeof(objid->oid_device_id.data)); + + p = xdr_decode_hyper(p, &objid->oid_partition_id); + p = xdr_decode_hyper(p, &objid->oid_object_id); + return p; +} +/* + * struct pnfs_osd_opaque_cred { + * u32 cred_len; + * void *cred; + * }; // xdr size [variable] + * The return pointers are from the xdr buffer + */ +static int +_osd_xdr_decode_opaque_cred(struct pnfs_osd_opaque_cred *opaque_cred, + struct xdr_stream *xdr) +{ + __be32 *p = xdr_inline_decode(xdr, 1); + + if (!p) + return -EINVAL; + + opaque_cred->cred_len = be32_to_cpu(*p++); + + p = xdr_inline_decode(xdr, opaque_cred->cred_len); + if (!p) + return -EINVAL; + + opaque_cred->cred = p; + return 0; +} + +/* + * struct pnfs_osd_object_cred { + * struct pnfs_osd_objid oc_object_id; + * u32 oc_osd_version; + * u32 oc_cap_key_sec; + * struct pnfs_osd_opaque_cred oc_cap_key + * struct pnfs_osd_opaque_cred oc_cap; + * }; // xdr size 32 + 4 + 4 + [variable] + [variable] + */ +static int +_osd_xdr_decode_object_cred(struct pnfs_osd_object_cred *comp, + struct xdr_stream *xdr) +{ + __be32 *p = xdr_inline_decode(xdr, 32 + 4 + 4); + int ret; + + if (!p) + return -EIO; + + p = _osd_xdr_decode_objid(p, &comp->oc_object_id); + comp->oc_osd_version = be32_to_cpup(p++); + comp->oc_cap_key_sec = be32_to_cpup(p); + + ret = _osd_xdr_decode_opaque_cred(&comp->oc_cap_key, xdr); + if (unlikely(ret)) + return ret; + + ret = _osd_xdr_decode_opaque_cred(&comp->oc_cap, xdr); + return ret; +} + +/* + * struct pnfs_osd_data_map { + * u32 odm_num_comps; + * u64 odm_stripe_unit; + * u32 odm_group_width; + * u32 odm_group_depth; + * u32 odm_mirror_cnt; + * u32 odm_raid_algorithm; + * }; // xdr size 4 + 8 + 4 + 4 + 4 + 4 + */ +static inline int +_osd_data_map_xdr_sz(void) +{ + return 4 + 8 + 4 + 4 + 4 + 4; +} + +static __be32 * +_osd_xdr_decode_data_map(__be32 *p, struct pnfs_osd_data_map *data_map) +{ + data_map->odm_num_comps = be32_to_cpup(p++); + p = xdr_decode_hyper(p, &data_map->odm_stripe_unit); + data_map->odm_group_width = be32_to_cpup(p++); + data_map->odm_group_depth = be32_to_cpup(p++); + data_map->odm_mirror_cnt = be32_to_cpup(p++); + data_map->odm_raid_algorithm = be32_to_cpup(p++); + dprintk("%s: odm_num_comps=%u odm_stripe_unit=%llu odm_group_width=%u " + "odm_group_depth=%u odm_mirror_cnt=%u odm_raid_algorithm=%u\n", + __func__, + data_map->odm_num_comps, + (unsigned long long)data_map->odm_stripe_unit, + data_map->odm_group_width, + data_map->odm_group_depth, + data_map->odm_mirror_cnt, + data_map->odm_raid_algorithm); + return p; +} + +int pnfs_osd_xdr_decode_layout_map(struct pnfs_osd_layout *layout, + struct pnfs_osd_xdr_decode_layout_iter *iter, struct xdr_stream *xdr) +{ + __be32 *p; + + memset(iter, 0, sizeof(*iter)); + + p = xdr_inline_decode(xdr, _osd_data_map_xdr_sz() + 4 + 4); + if (unlikely(!p)) + return -EINVAL; + + p = _osd_xdr_decode_data_map(p, &layout->olo_map); + layout->olo_comps_index = be32_to_cpup(p++); + layout->olo_num_comps = be32_to_cpup(p++); + iter->total_comps = layout->olo_num_comps; + return 0; +} + +bool pnfs_osd_xdr_decode_layout_comp(struct pnfs_osd_object_cred *comp, + struct pnfs_osd_xdr_decode_layout_iter *iter, struct xdr_stream *xdr, + int *err) +{ + BUG_ON(iter->decoded_comps > iter->total_comps); + if (iter->decoded_comps == iter->total_comps) + return false; + + *err = _osd_xdr_decode_object_cred(comp, xdr); + if (unlikely(*err)) { + dprintk("%s: _osd_xdr_decode_object_cred=>%d decoded_comps=%d " + "total_comps=%d\n", __func__, *err, + iter->decoded_comps, iter->total_comps); + return false; /* stop the loop */ + } + dprintk("%s: dev(%llx:%llx) par=0x%llx obj=0x%llx " + "key_len=%u cap_len=%u\n", + __func__, + _DEVID_LO(&comp->oc_object_id.oid_device_id), + _DEVID_HI(&comp->oc_object_id.oid_device_id), + comp->oc_object_id.oid_partition_id, + comp->oc_object_id.oid_object_id, + comp->oc_cap_key.cred_len, comp->oc_cap.cred_len); + + iter->decoded_comps++; + return true; +} + +/* + * Get Device Information Decoding + * + * Note: since Device Information is currently done synchronously, all + * variable strings fields are left inside the rpc buffer and are only + * pointed to by the pnfs_osd_deviceaddr members. So the read buffer + * should not be freed while the returned information is in use. + */ +/* + *struct nfs4_string { + * unsigned int len; + * char *data; + *}; // size [variable] + * NOTE: Returned string points to inside the XDR buffer + */ +static __be32 * +__read_u8_opaque(__be32 *p, struct nfs4_string *str) +{ + str->len = be32_to_cpup(p++); + str->data = (char *)p; + + p += XDR_QUADLEN(str->len); + return p; +} + +/* + * struct pnfs_osd_targetid { + * u32 oti_type; + * struct nfs4_string oti_scsi_device_id; + * };// size 4 + [variable] + */ +static __be32 * +__read_targetid(__be32 *p, struct pnfs_osd_targetid* targetid) +{ + u32 oti_type; + + oti_type = be32_to_cpup(p++); + targetid->oti_type = oti_type; + + switch (oti_type) { + case OBJ_TARGET_SCSI_NAME: + case OBJ_TARGET_SCSI_DEVICE_ID: + p = __read_u8_opaque(p, &targetid->oti_scsi_device_id); + } + + return p; +} + +/* + * struct pnfs_osd_net_addr { + * struct nfs4_string r_netid; + * struct nfs4_string r_addr; + * }; + */ +static __be32 * +__read_net_addr(__be32 *p, struct pnfs_osd_net_addr* netaddr) +{ + p = __read_u8_opaque(p, &netaddr->r_netid); + p = __read_u8_opaque(p, &netaddr->r_addr); + + return p; +} + +/* + * struct pnfs_osd_targetaddr { + * u32 ota_available; + * struct pnfs_osd_net_addr ota_netaddr; + * }; + */ +static __be32 * +__read_targetaddr(__be32 *p, struct pnfs_osd_targetaddr *targetaddr) +{ + u32 ota_available; + + ota_available = be32_to_cpup(p++); + targetaddr->ota_available = ota_available; + + if (ota_available) + p = __read_net_addr(p, &targetaddr->ota_netaddr); + + + return p; +} + +/* + * struct pnfs_osd_deviceaddr { + * struct pnfs_osd_targetid oda_targetid; + * struct pnfs_osd_targetaddr oda_targetaddr; + * u8 oda_lun[8]; + * struct nfs4_string oda_systemid; + * struct pnfs_osd_object_cred oda_root_obj_cred; + * struct nfs4_string oda_osdname; + * }; + */ + +/* We need this version for the pnfs_osd_xdr_decode_deviceaddr which does + * not have an xdr_stream + */ +static __be32 * +__read_opaque_cred(__be32 *p, + struct pnfs_osd_opaque_cred *opaque_cred) +{ + opaque_cred->cred_len = be32_to_cpu(*p++); + opaque_cred->cred = p; + return p + XDR_QUADLEN(opaque_cred->cred_len); +} + +static __be32 * +__read_object_cred(__be32 *p, struct pnfs_osd_object_cred *comp) +{ + p = _osd_xdr_decode_objid(p, &comp->oc_object_id); + comp->oc_osd_version = be32_to_cpup(p++); + comp->oc_cap_key_sec = be32_to_cpup(p++); + + p = __read_opaque_cred(p, &comp->oc_cap_key); + p = __read_opaque_cred(p, &comp->oc_cap); + return p; +} + +void pnfs_osd_xdr_decode_deviceaddr( + struct pnfs_osd_deviceaddr *deviceaddr, __be32 *p) +{ + p = __read_targetid(p, &deviceaddr->oda_targetid); + + p = __read_targetaddr(p, &deviceaddr->oda_targetaddr); + + p = xdr_decode_opaque_fixed(p, deviceaddr->oda_lun, + sizeof(deviceaddr->oda_lun)); + + p = __read_u8_opaque(p, &deviceaddr->oda_systemid); + + p = __read_object_cred(p, &deviceaddr->oda_root_obj_cred); + + p = __read_u8_opaque(p, &deviceaddr->oda_osdname); + + /* libosd likes this terminated in dbg. It's last, so no problems */ + deviceaddr->oda_osdname.data[deviceaddr->oda_osdname.len] = 0; +} + +/* + * struct pnfs_osd_layoutupdate { + * u32 dsu_valid; + * s64 dsu_delta; + * u32 olu_ioerr_flag; + * }; xdr size 4 + 8 + 4 + */ +int +pnfs_osd_xdr_encode_layoutupdate(struct xdr_stream *xdr, + struct pnfs_osd_layoutupdate *lou) +{ + __be32 *p = xdr_reserve_space(xdr, 4 + 8 + 4); + + if (!p) + return -E2BIG; + + *p++ = cpu_to_be32(lou->dsu_valid); + if (lou->dsu_valid) + p = xdr_encode_hyper(p, lou->dsu_delta); + *p++ = cpu_to_be32(lou->olu_ioerr_flag); + return 0; +} + +/* + * struct pnfs_osd_objid { + * struct nfs4_deviceid oid_device_id; + * u64 oid_partition_id; + * u64 oid_object_id; + * }; // xdr size 32 bytes + */ +static inline __be32 * +pnfs_osd_xdr_encode_objid(__be32 *p, struct pnfs_osd_objid *object_id) +{ + p = xdr_encode_opaque_fixed(p, &object_id->oid_device_id.data, + sizeof(object_id->oid_device_id.data)); + p = xdr_encode_hyper(p, object_id->oid_partition_id); + p = xdr_encode_hyper(p, object_id->oid_object_id); + + return p; +} + +/* + * struct pnfs_osd_ioerr { + * struct pnfs_osd_objid oer_component; + * u64 oer_comp_offset; + * u64 oer_comp_length; + * u32 oer_iswrite; + * u32 oer_errno; + * }; // xdr size 32 + 24 bytes + */ +void pnfs_osd_xdr_encode_ioerr(__be32 *p, struct pnfs_osd_ioerr *ioerr) +{ + p = pnfs_osd_xdr_encode_objid(p, &ioerr->oer_component); + p = xdr_encode_hyper(p, ioerr->oer_comp_offset); + p = xdr_encode_hyper(p, ioerr->oer_comp_length); + *p++ = cpu_to_be32(ioerr->oer_iswrite); + *p = cpu_to_be32(ioerr->oer_errno); +} + +__be32 *pnfs_osd_xdr_ioerr_reserve_space(struct xdr_stream *xdr) +{ + __be32 *p; + + p = xdr_reserve_space(xdr, 32 + 24); + if (unlikely(!p)) + dprintk("%s: out of xdr space\n", __func__); + + return p; +} diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index c80add6e221..7913961aff2 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -204,6 +204,21 @@ nfs_wait_on_request(struct nfs_page *req) TASK_UNINTERRUPTIBLE); } +static bool nfs_generic_pg_test(struct nfs_pageio_descriptor *desc, struct nfs_page *prev, struct nfs_page *req) +{ + /* + * FIXME: ideally we should be able to coalesce all requests + * that are not block boundary aligned, but currently this + * is problematic for the case of bsize < PAGE_CACHE_SIZE, + * since nfs_flush_multi and nfs_pagein_multi assume you + * can have only one struct nfs_page. + */ + if (desc->pg_bsize < PAGE_SIZE) + return 0; + + return desc->pg_count + req->wb_bytes <= desc->pg_bsize; +} + /** * nfs_pageio_init - initialise a page io descriptor * @desc: pointer to descriptor @@ -229,6 +244,8 @@ void nfs_pageio_init(struct nfs_pageio_descriptor *desc, desc->pg_ioflags = io_flags; desc->pg_error = 0; desc->pg_lseg = NULL; + desc->pg_test = nfs_generic_pg_test; + pnfs_pageio_init(desc, inode); } /** @@ -242,29 +259,23 @@ void nfs_pageio_init(struct nfs_pageio_descriptor *desc, * * Return 'true' if this is the case, else return 'false'. */ -static int nfs_can_coalesce_requests(struct nfs_page *prev, - struct nfs_page *req, - struct nfs_pageio_descriptor *pgio) +static bool nfs_can_coalesce_requests(struct nfs_page *prev, + struct nfs_page *req, + struct nfs_pageio_descriptor *pgio) { if (req->wb_context->cred != prev->wb_context->cred) - return 0; + return false; if (req->wb_lock_context->lockowner != prev->wb_lock_context->lockowner) - return 0; + return false; if (req->wb_context->state != prev->wb_context->state) - return 0; + return false; if (req->wb_index != (prev->wb_index + 1)) - return 0; + return false; if (req->wb_pgbase != 0) - return 0; + return false; if (prev->wb_pgbase + prev->wb_bytes != PAGE_CACHE_SIZE) - return 0; - /* - * Non-whole file layouts need to check that req is inside of - * pgio->pg_lseg. - */ - if (pgio->pg_test && !pgio->pg_test(pgio, prev, req)) - return 0; - return 1; + return false; + return pgio->pg_test(pgio, prev, req); } /** @@ -278,31 +289,18 @@ static int nfs_can_coalesce_requests(struct nfs_page *prev, static int nfs_pageio_do_add_request(struct nfs_pageio_descriptor *desc, struct nfs_page *req) { - size_t newlen = req->wb_bytes; - if (desc->pg_count != 0) { struct nfs_page *prev; - /* - * FIXME: ideally we should be able to coalesce all requests - * that are not block boundary aligned, but currently this - * is problematic for the case of bsize < PAGE_CACHE_SIZE, - * since nfs_flush_multi and nfs_pagein_multi assume you - * can have only one struct nfs_page. - */ - if (desc->pg_bsize < PAGE_SIZE) - return 0; - newlen += desc->pg_count; - if (newlen > desc->pg_bsize) - return 0; prev = nfs_list_entry(desc->pg_list.prev); if (!nfs_can_coalesce_requests(prev, req, desc)) return 0; - } else + } else { desc->pg_base = req->wb_pgbase; + } nfs_list_remove_request(req); nfs_list_add_request(req, &desc->pg_list); - desc->pg_count = newlen; + desc->pg_count += req->wb_bytes; return 1; } diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index f57f5281a52..8c1309d852a 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -177,13 +177,28 @@ get_layout_hdr(struct pnfs_layout_hdr *lo) atomic_inc(&lo->plh_refcount); } +static struct pnfs_layout_hdr * +pnfs_alloc_layout_hdr(struct inode *ino, gfp_t gfp_flags) +{ + struct pnfs_layoutdriver_type *ld = NFS_SERVER(ino)->pnfs_curr_ld; + return ld->alloc_layout_hdr ? ld->alloc_layout_hdr(ino, gfp_flags) : + kzalloc(sizeof(struct pnfs_layout_hdr), gfp_flags); +} + +static void +pnfs_free_layout_hdr(struct pnfs_layout_hdr *lo) +{ + struct pnfs_layoutdriver_type *ld = NFS_SERVER(lo->plh_inode)->pnfs_curr_ld; + return ld->alloc_layout_hdr ? ld->free_layout_hdr(lo) : kfree(lo); +} + static void destroy_layout_hdr(struct pnfs_layout_hdr *lo) { dprintk("%s: freeing layout cache %p\n", __func__, lo); BUG_ON(!list_empty(&lo->plh_layouts)); NFS_I(lo->plh_inode)->layout = NULL; - kfree(lo); + pnfs_free_layout_hdr(lo); } static void @@ -228,7 +243,7 @@ put_lseg_common(struct pnfs_layout_segment *lseg) { struct inode *inode = lseg->pls_layout->plh_inode; - BUG_ON(test_bit(NFS_LSEG_VALID, &lseg->pls_flags)); + WARN_ON(test_bit(NFS_LSEG_VALID, &lseg->pls_flags)); list_del_init(&lseg->pls_list); if (list_empty(&lseg->pls_layout->plh_segs)) { set_bit(NFS_LAYOUT_DESTROYED, &lseg->pls_layout->plh_flags); @@ -261,11 +276,72 @@ put_lseg(struct pnfs_layout_segment *lseg) } EXPORT_SYMBOL_GPL(put_lseg); +static inline u64 +end_offset(u64 start, u64 len) +{ + u64 end; + + end = start + len; + return end >= start ? end : NFS4_MAX_UINT64; +} + +/* last octet in a range */ +static inline u64 +last_byte_offset(u64 start, u64 len) +{ + u64 end; + + BUG_ON(!len); + end = start + len; + return end > start ? end - 1 : NFS4_MAX_UINT64; +} + +/* + * is l2 fully contained in l1? + * start1 end1 + * [----------------------------------) + * start2 end2 + * [----------------) + */ +static inline int +lo_seg_contained(struct pnfs_layout_range *l1, + struct pnfs_layout_range *l2) +{ + u64 start1 = l1->offset; + u64 end1 = end_offset(start1, l1->length); + u64 start2 = l2->offset; + u64 end2 = end_offset(start2, l2->length); + + return (start1 <= start2) && (end1 >= end2); +} + +/* + * is l1 and l2 intersecting? + * start1 end1 + * [----------------------------------) + * start2 end2 + * [----------------) + */ +static inline int +lo_seg_intersecting(struct pnfs_layout_range *l1, + struct pnfs_layout_range *l2) +{ + u64 start1 = l1->offset; + u64 end1 = end_offset(start1, l1->length); + u64 start2 = l2->offset; + u64 end2 = end_offset(start2, l2->length); + + return (end1 == NFS4_MAX_UINT64 || end1 > start2) && + (end2 == NFS4_MAX_UINT64 || end2 > start1); +} + static bool -should_free_lseg(u32 lseg_iomode, u32 recall_iomode) +should_free_lseg(struct pnfs_layout_range *lseg_range, + struct pnfs_layout_range *recall_range) { - return (recall_iomode == IOMODE_ANY || - lseg_iomode == recall_iomode); + return (recall_range->iomode == IOMODE_ANY || + lseg_range->iomode == recall_range->iomode) && + lo_seg_intersecting(lseg_range, recall_range); } /* Returns 1 if lseg is removed from list, 0 otherwise */ @@ -296,7 +372,7 @@ static int mark_lseg_invalid(struct pnfs_layout_segment *lseg, int mark_matching_lsegs_invalid(struct pnfs_layout_hdr *lo, struct list_head *tmp_list, - u32 iomode) + struct pnfs_layout_range *recall_range) { struct pnfs_layout_segment *lseg, *next; int invalid = 0, removed = 0; @@ -309,7 +385,8 @@ mark_matching_lsegs_invalid(struct pnfs_layout_hdr *lo, return 0; } list_for_each_entry_safe(lseg, next, &lo->plh_segs, pls_list) - if (should_free_lseg(lseg->pls_range.iomode, iomode)) { + if (!recall_range || + should_free_lseg(&lseg->pls_range, recall_range)) { dprintk("%s: freeing lseg %p iomode %d " "offset %llu length %llu\n", __func__, lseg, lseg->pls_range.iomode, lseg->pls_range.offset, @@ -358,7 +435,7 @@ pnfs_destroy_layout(struct nfs_inode *nfsi) lo = nfsi->layout; if (lo) { lo->plh_block_lgets++; /* permanently block new LAYOUTGETs */ - mark_matching_lsegs_invalid(lo, &tmp_list, IOMODE_ANY); + mark_matching_lsegs_invalid(lo, &tmp_list, NULL); } spin_unlock(&nfsi->vfs_inode.i_lock); pnfs_free_lseg_list(&tmp_list); @@ -467,7 +544,7 @@ pnfs_choose_layoutget_stateid(nfs4_stateid *dst, struct pnfs_layout_hdr *lo, static struct pnfs_layout_segment * send_layoutget(struct pnfs_layout_hdr *lo, struct nfs_open_context *ctx, - u32 iomode, + struct pnfs_layout_range *range, gfp_t gfp_flags) { struct inode *ino = lo->plh_inode; @@ -499,11 +576,11 @@ send_layoutget(struct pnfs_layout_hdr *lo, goto out_err_free; } - lgp->args.minlength = NFS4_MAX_UINT64; + lgp->args.minlength = PAGE_CACHE_SIZE; + if (lgp->args.minlength > range->length) + lgp->args.minlength = range->length; lgp->args.maxcount = PNFS_LAYOUT_MAXSIZE; - lgp->args.range.iomode = iomode; - lgp->args.range.offset = 0; - lgp->args.range.length = NFS4_MAX_UINT64; + lgp->args.range = *range; lgp->args.type = server->pnfs_curr_ld->id; lgp->args.inode = ino; lgp->args.ctx = get_nfs_open_context(ctx); @@ -518,7 +595,7 @@ send_layoutget(struct pnfs_layout_hdr *lo, nfs4_proc_layoutget(lgp); if (!lseg) { /* remember that LAYOUTGET failed and suspend trying */ - set_bit(lo_fail_bit(iomode), &lo->plh_flags); + set_bit(lo_fail_bit(range->iomode), &lo->plh_flags); } /* free xdr pages */ @@ -542,6 +619,51 @@ out_err_free: return NULL; } +/* Initiates a LAYOUTRETURN(FILE) */ +int +_pnfs_return_layout(struct inode *ino) +{ + struct pnfs_layout_hdr *lo = NULL; + struct nfs_inode *nfsi = NFS_I(ino); + LIST_HEAD(tmp_list); + struct nfs4_layoutreturn *lrp; + nfs4_stateid stateid; + int status = 0; + + dprintk("--> %s\n", __func__); + + spin_lock(&ino->i_lock); + lo = nfsi->layout; + if (!lo || !mark_matching_lsegs_invalid(lo, &tmp_list, NULL)) { + spin_unlock(&ino->i_lock); + dprintk("%s: no layout segments to return\n", __func__); + goto out; + } + stateid = nfsi->layout->plh_stateid; + /* Reference matched in nfs4_layoutreturn_release */ + get_layout_hdr(lo); + spin_unlock(&ino->i_lock); + pnfs_free_lseg_list(&tmp_list); + + WARN_ON(test_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags)); + + lrp = kzalloc(sizeof(*lrp), GFP_KERNEL); + if (unlikely(lrp == NULL)) { + status = -ENOMEM; + goto out; + } + + lrp->args.stateid = stateid; + lrp->args.layout_type = NFS_SERVER(ino)->pnfs_curr_ld->id; + lrp->args.inode = ino; + lrp->clp = NFS_SERVER(ino)->nfs_client; + + status = nfs4_proc_layoutreturn(lrp); +out: + dprintk("<-- %s status: %d\n", __func__, status); + return status; +} + bool pnfs_roc(struct inode *ino) { struct pnfs_layout_hdr *lo; @@ -625,10 +747,23 @@ bool pnfs_roc_drain(struct inode *ino, u32 *barrier) * are seen first. */ static s64 -cmp_layout(u32 iomode1, u32 iomode2) +cmp_layout(struct pnfs_layout_range *l1, + struct pnfs_layout_range *l2) { + s64 d; + + /* high offset > low offset */ + d = l1->offset - l2->offset; + if (d) + return d; + + /* short length > long length */ + d = l2->length - l1->length; + if (d) + return d; + /* read > read/write */ - return (int)(iomode2 == IOMODE_READ) - (int)(iomode1 == IOMODE_READ); + return (int)(l1->iomode == IOMODE_READ) - (int)(l2->iomode == IOMODE_READ); } static void @@ -636,13 +771,12 @@ pnfs_insert_layout(struct pnfs_layout_hdr *lo, struct pnfs_layout_segment *lseg) { struct pnfs_layout_segment *lp; - int found = 0; dprintk("%s:Begin\n", __func__); assert_spin_locked(&lo->plh_inode->i_lock); list_for_each_entry(lp, &lo->plh_segs, pls_list) { - if (cmp_layout(lp->pls_range.iomode, lseg->pls_range.iomode) > 0) + if (cmp_layout(&lseg->pls_range, &lp->pls_range) > 0) continue; list_add_tail(&lseg->pls_list, &lp->pls_list); dprintk("%s: inserted lseg %p " @@ -652,16 +786,14 @@ pnfs_insert_layout(struct pnfs_layout_hdr *lo, lseg->pls_range.offset, lseg->pls_range.length, lp, lp->pls_range.iomode, lp->pls_range.offset, lp->pls_range.length); - found = 1; - break; - } - if (!found) { - list_add_tail(&lseg->pls_list, &lo->plh_segs); - dprintk("%s: inserted lseg %p " - "iomode %d offset %llu length %llu at tail\n", - __func__, lseg, lseg->pls_range.iomode, - lseg->pls_range.offset, lseg->pls_range.length); + goto out; } + list_add_tail(&lseg->pls_list, &lo->plh_segs); + dprintk("%s: inserted lseg %p " + "iomode %d offset %llu length %llu at tail\n", + __func__, lseg, lseg->pls_range.iomode, + lseg->pls_range.offset, lseg->pls_range.length); +out: get_layout_hdr(lo); dprintk("%s:Return\n", __func__); @@ -672,7 +804,7 @@ alloc_init_layout_hdr(struct inode *ino, gfp_t gfp_flags) { struct pnfs_layout_hdr *lo; - lo = kzalloc(sizeof(struct pnfs_layout_hdr), gfp_flags); + lo = pnfs_alloc_layout_hdr(ino, gfp_flags); if (!lo) return NULL; atomic_set(&lo->plh_refcount, 1); @@ -705,7 +837,7 @@ pnfs_find_alloc_layout(struct inode *ino, gfp_t gfp_flags) if (likely(nfsi->layout == NULL)) /* Won the race? */ nfsi->layout = new; else - kfree(new); + pnfs_free_layout_hdr(new); return nfsi->layout; } @@ -721,16 +853,28 @@ pnfs_find_alloc_layout(struct inode *ino, gfp_t gfp_flags) * READ RW true */ static int -is_matching_lseg(struct pnfs_layout_segment *lseg, u32 iomode) +is_matching_lseg(struct pnfs_layout_range *ls_range, + struct pnfs_layout_range *range) { - return (iomode != IOMODE_RW || lseg->pls_range.iomode == IOMODE_RW); + struct pnfs_layout_range range1; + + if ((range->iomode == IOMODE_RW && + ls_range->iomode != IOMODE_RW) || + !lo_seg_intersecting(ls_range, range)) + return 0; + + /* range1 covers only the first byte in the range */ + range1 = *range; + range1.length = 1; + return lo_seg_contained(ls_range, &range1); } /* * lookup range in layout */ static struct pnfs_layout_segment * -pnfs_find_lseg(struct pnfs_layout_hdr *lo, u32 iomode) +pnfs_find_lseg(struct pnfs_layout_hdr *lo, + struct pnfs_layout_range *range) { struct pnfs_layout_segment *lseg, *ret = NULL; @@ -739,11 +883,11 @@ pnfs_find_lseg(struct pnfs_layout_hdr *lo, u32 iomode) assert_spin_locked(&lo->plh_inode->i_lock); list_for_each_entry(lseg, &lo->plh_segs, pls_list) { if (test_bit(NFS_LSEG_VALID, &lseg->pls_flags) && - is_matching_lseg(lseg, iomode)) { + is_matching_lseg(&lseg->pls_range, range)) { ret = get_lseg(lseg); break; } - if (cmp_layout(iomode, lseg->pls_range.iomode) > 0) + if (cmp_layout(range, &lseg->pls_range) > 0) break; } @@ -759,9 +903,17 @@ pnfs_find_lseg(struct pnfs_layout_hdr *lo, u32 iomode) struct pnfs_layout_segment * pnfs_update_layout(struct inode *ino, struct nfs_open_context *ctx, + loff_t pos, + u64 count, enum pnfs_iomode iomode, gfp_t gfp_flags) { + struct pnfs_layout_range arg = { + .iomode = iomode, + .offset = pos, + .length = count, + }; + unsigned pg_offset; struct nfs_inode *nfsi = NFS_I(ino); struct nfs_client *clp = NFS_SERVER(ino)->nfs_client; struct pnfs_layout_hdr *lo; @@ -789,7 +941,7 @@ pnfs_update_layout(struct inode *ino, goto out_unlock; /* Check to see if the layout for the given range already exists */ - lseg = pnfs_find_lseg(lo, iomode); + lseg = pnfs_find_lseg(lo, &arg); if (lseg) goto out_unlock; @@ -811,7 +963,14 @@ pnfs_update_layout(struct inode *ino, spin_unlock(&clp->cl_lock); } - lseg = send_layoutget(lo, ctx, iomode, gfp_flags); + pg_offset = arg.offset & ~PAGE_CACHE_MASK; + if (pg_offset) { + arg.offset -= pg_offset; + arg.length += pg_offset; + } + arg.length = PAGE_CACHE_ALIGN(arg.length); + + lseg = send_layoutget(lo, ctx, &arg, gfp_flags); if (!lseg && first) { spin_lock(&clp->cl_lock); list_del_init(&lo->plh_layouts); @@ -838,17 +997,6 @@ pnfs_layout_process(struct nfs4_layoutget *lgp) struct nfs_client *clp = NFS_SERVER(ino)->nfs_client; int status = 0; - /* Verify we got what we asked for. - * Note that because the xdr parsing only accepts a single - * element array, this can fail even if the server is behaving - * correctly. - */ - if (lgp->args.range.iomode > res->range.iomode || - res->range.offset != 0 || - res->range.length != NFS4_MAX_UINT64) { - status = -EINVAL; - goto out; - } /* Inject layout blob into I/O device driver */ lseg = NFS_SERVER(ino)->pnfs_curr_ld->alloc_lseg(lo, res, lgp->gfp_flags); if (!lseg || IS_ERR(lseg)) { @@ -895,51 +1043,64 @@ out_forget_reply: goto out; } -static int pnfs_read_pg_test(struct nfs_pageio_descriptor *pgio, - struct nfs_page *prev, - struct nfs_page *req) +bool +pnfs_generic_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev, + struct nfs_page *req) { + enum pnfs_iomode access_type; + gfp_t gfp_flags; + + /* We assume that pg_ioflags == 0 iff we're reading a page */ + if (pgio->pg_ioflags == 0) { + access_type = IOMODE_READ; + gfp_flags = GFP_KERNEL; + } else { + access_type = IOMODE_RW; + gfp_flags = GFP_NOFS; + } + if (pgio->pg_count == prev->wb_bytes) { /* This is first coelesce call for a series of nfs_pages */ pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode, prev->wb_context, - IOMODE_READ, - GFP_KERNEL); + req_offset(req), + pgio->pg_count, + access_type, + gfp_flags); + return true; } - return NFS_SERVER(pgio->pg_inode)->pnfs_curr_ld->pg_test(pgio, prev, req); -} -void -pnfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *inode) -{ - struct pnfs_layoutdriver_type *ld; + if (pgio->pg_lseg && + req_offset(req) > end_offset(pgio->pg_lseg->pls_range.offset, + pgio->pg_lseg->pls_range.length)) + return false; - ld = NFS_SERVER(inode)->pnfs_curr_ld; - pgio->pg_test = (ld && ld->pg_test) ? pnfs_read_pg_test : NULL; + return true; } +EXPORT_SYMBOL_GPL(pnfs_generic_pg_test); -static int pnfs_write_pg_test(struct nfs_pageio_descriptor *pgio, - struct nfs_page *prev, - struct nfs_page *req) +/* + * Called by non rpc-based layout drivers + */ +int +pnfs_ld_write_done(struct nfs_write_data *data) { - if (pgio->pg_count == prev->wb_bytes) { - /* This is first coelesce call for a series of nfs_pages */ - pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode, - prev->wb_context, - IOMODE_RW, - GFP_NOFS); - } - return NFS_SERVER(pgio->pg_inode)->pnfs_curr_ld->pg_test(pgio, prev, req); -} + int status; -void -pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *inode) -{ - struct pnfs_layoutdriver_type *ld; + if (!data->pnfs_error) { + pnfs_set_layoutcommit(data); + data->mds_ops->rpc_call_done(&data->task, data); + data->mds_ops->rpc_release(data); + return 0; + } - ld = NFS_SERVER(inode)->pnfs_curr_ld; - pgio->pg_test = (ld && ld->pg_test) ? pnfs_write_pg_test : NULL; + dprintk("%s: pnfs_error=%d, retry via MDS\n", __func__, + data->pnfs_error); + status = nfs_initiate_write(data, NFS_CLIENT(data->inode), + data->mds_ops, NFS_FILE_SYNC); + return status ? : -EAGAIN; } +EXPORT_SYMBOL_GPL(pnfs_ld_write_done); enum pnfs_try_status pnfs_try_to_write_data(struct nfs_write_data *wdata, @@ -966,6 +1127,29 @@ pnfs_try_to_write_data(struct nfs_write_data *wdata, } /* + * Called by non rpc-based layout drivers + */ +int +pnfs_ld_read_done(struct nfs_read_data *data) +{ + int status; + + if (!data->pnfs_error) { + __nfs4_read_done_cb(data); + data->mds_ops->rpc_call_done(&data->task, data); + data->mds_ops->rpc_release(data); + return 0; + } + + dprintk("%s: pnfs_error=%d, retry via MDS\n", __func__, + data->pnfs_error); + status = nfs_initiate_read(data, NFS_CLIENT(data->inode), + data->mds_ops); + return status ? : -EAGAIN; +} +EXPORT_SYMBOL_GPL(pnfs_ld_read_done); + +/* * Call the appropriate parallel I/O subsystem read function. */ enum pnfs_try_status @@ -1009,7 +1193,7 @@ void pnfs_set_layoutcommit(struct nfs_write_data *wdata) { struct nfs_inode *nfsi = NFS_I(wdata->inode); - loff_t end_pos = wdata->args.offset + wdata->res.count; + loff_t end_pos = wdata->mds_offset + wdata->res.count; bool mark_as_dirty = false; spin_lock(&nfsi->vfs_inode.i_lock); diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 0c015bad9e7..48d0a8e4d06 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -30,6 +30,7 @@ #ifndef FS_NFS_PNFS_H #define FS_NFS_PNFS_H +#include <linux/nfs_fs.h> #include <linux/nfs_page.h> enum { @@ -64,17 +65,29 @@ enum { NFS_LAYOUT_DESTROYED, /* no new use of layout allowed */ }; +enum layoutdriver_policy_flags { + /* Should the pNFS client commit and return the layout upon a setattr */ + PNFS_LAYOUTRET_ON_SETATTR = 1 << 0, +}; + +struct nfs4_deviceid_node; + /* Per-layout driver specific registration structure */ struct pnfs_layoutdriver_type { struct list_head pnfs_tblid; const u32 id; const char *name; struct module *owner; + unsigned flags; + + struct pnfs_layout_hdr * (*alloc_layout_hdr) (struct inode *inode, gfp_t gfp_flags); + void (*free_layout_hdr) (struct pnfs_layout_hdr *); + struct pnfs_layout_segment * (*alloc_lseg) (struct pnfs_layout_hdr *layoutid, struct nfs4_layoutget_res *lgr, gfp_t gfp_flags); void (*free_lseg) (struct pnfs_layout_segment *lseg); /* test for nfs page cache coalescing */ - int (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, struct nfs_page *); + bool (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, struct nfs_page *); /* Returns true if layoutdriver wants to divert this request to * driver's commit routine. @@ -89,6 +102,16 @@ struct pnfs_layoutdriver_type { */ enum pnfs_try_status (*read_pagelist) (struct nfs_read_data *nfs_data); enum pnfs_try_status (*write_pagelist) (struct nfs_write_data *nfs_data, int how); + + void (*free_deviceid_node) (struct nfs4_deviceid_node *); + + void (*encode_layoutreturn) (struct pnfs_layout_hdr *layoutid, + struct xdr_stream *xdr, + const struct nfs4_layoutreturn_args *args); + + void (*encode_layoutcommit) (struct pnfs_layout_hdr *layoutid, + struct xdr_stream *xdr, + const struct nfs4_layoutcommit_args *args); }; struct pnfs_layout_hdr { @@ -120,21 +143,22 @@ extern void pnfs_unregister_layoutdriver(struct pnfs_layoutdriver_type *); extern int nfs4_proc_getdeviceinfo(struct nfs_server *server, struct pnfs_device *dev); extern int nfs4_proc_layoutget(struct nfs4_layoutget *lgp); +extern int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp); /* pnfs.c */ void get_layout_hdr(struct pnfs_layout_hdr *lo); void put_lseg(struct pnfs_layout_segment *lseg); struct pnfs_layout_segment * pnfs_update_layout(struct inode *ino, struct nfs_open_context *ctx, - enum pnfs_iomode access_type, gfp_t gfp_flags); + loff_t pos, u64 count, enum pnfs_iomode access_type, + gfp_t gfp_flags); void set_pnfs_layoutdriver(struct nfs_server *, u32 id); void unset_pnfs_layoutdriver(struct nfs_server *); enum pnfs_try_status pnfs_try_to_write_data(struct nfs_write_data *, const struct rpc_call_ops *, int); enum pnfs_try_status pnfs_try_to_read_data(struct nfs_read_data *, const struct rpc_call_ops *); -void pnfs_pageio_init_read(struct nfs_pageio_descriptor *, struct inode *); -void pnfs_pageio_init_write(struct nfs_pageio_descriptor *, struct inode *); +bool pnfs_generic_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev, struct nfs_page *req); int pnfs_layout_process(struct nfs4_layoutget *lgp); void pnfs_free_lseg_list(struct list_head *tmp_list); void pnfs_destroy_layout(struct nfs_inode *); @@ -148,13 +172,37 @@ int pnfs_choose_layoutget_stateid(nfs4_stateid *dst, struct nfs4_state *open_state); int mark_matching_lsegs_invalid(struct pnfs_layout_hdr *lo, struct list_head *tmp_list, - u32 iomode); + struct pnfs_layout_range *recall_range); bool pnfs_roc(struct inode *ino); void pnfs_roc_release(struct inode *ino); void pnfs_roc_set_barrier(struct inode *ino, u32 barrier); bool pnfs_roc_drain(struct inode *ino, u32 *barrier); void pnfs_set_layoutcommit(struct nfs_write_data *wdata); int pnfs_layoutcommit_inode(struct inode *inode, bool sync); +int _pnfs_return_layout(struct inode *); +int pnfs_ld_write_done(struct nfs_write_data *); +int pnfs_ld_read_done(struct nfs_read_data *); + +/* pnfs_dev.c */ +struct nfs4_deviceid_node { + struct hlist_node node; + const struct pnfs_layoutdriver_type *ld; + const struct nfs_client *nfs_client; + struct nfs4_deviceid deviceid; + atomic_t ref; +}; + +void nfs4_print_deviceid(const struct nfs4_deviceid *dev_id); +struct nfs4_deviceid_node *nfs4_find_get_deviceid(const struct pnfs_layoutdriver_type *, const struct nfs_client *, const struct nfs4_deviceid *); +struct nfs4_deviceid_node *nfs4_unhash_put_deviceid(const struct pnfs_layoutdriver_type *, const struct nfs_client *, const struct nfs4_deviceid *); +void nfs4_delete_deviceid(const struct pnfs_layoutdriver_type *, const struct nfs_client *, const struct nfs4_deviceid *); +void nfs4_init_deviceid_node(struct nfs4_deviceid_node *, + const struct pnfs_layoutdriver_type *, + const struct nfs_client *, + const struct nfs4_deviceid *); +struct nfs4_deviceid_node *nfs4_insert_deviceid_node(struct nfs4_deviceid_node *); +bool nfs4_put_deviceid_node(struct nfs4_deviceid_node *); +void nfs4_deviceid_purge_client(const struct nfs_client *); static inline int lo_fail_bit(u32 iomode) { @@ -223,6 +271,36 @@ static inline void pnfs_clear_request_commit(struct nfs_page *req) put_lseg(req->wb_commit_lseg); } +/* Should the pNFS client commit and return the layout upon a setattr */ +static inline bool +pnfs_ld_layoutret_on_setattr(struct inode *inode) +{ + if (!pnfs_enabled_sb(NFS_SERVER(inode))) + return false; + return NFS_SERVER(inode)->pnfs_curr_ld->flags & + PNFS_LAYOUTRET_ON_SETATTR; +} + +static inline int pnfs_return_layout(struct inode *ino) +{ + struct nfs_inode *nfsi = NFS_I(ino); + struct nfs_server *nfss = NFS_SERVER(ino); + + if (pnfs_enabled_sb(nfss) && nfsi->layout) + return _pnfs_return_layout(ino); + + return 0; +} + +static inline void pnfs_pageio_init(struct nfs_pageio_descriptor *pgio, + struct inode *inode) +{ + struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld; + + if (ld) + pgio->pg_test = ld->pg_test; +} + #else /* CONFIG_NFS_V4_1 */ static inline void pnfs_destroy_all_layouts(struct nfs_client *clp) @@ -245,7 +323,8 @@ static inline void put_lseg(struct pnfs_layout_segment *lseg) static inline struct pnfs_layout_segment * pnfs_update_layout(struct inode *ino, struct nfs_open_context *ctx, - enum pnfs_iomode access_type, gfp_t gfp_flags) + loff_t pos, u64 count, enum pnfs_iomode access_type, + gfp_t gfp_flags) { return NULL; } @@ -264,6 +343,17 @@ pnfs_try_to_write_data(struct nfs_write_data *data, return PNFS_NOT_ATTEMPTED; } +static inline int pnfs_return_layout(struct inode *ino) +{ + return 0; +} + +static inline bool +pnfs_ld_layoutret_on_setattr(struct inode *inode) +{ + return false; +} + static inline bool pnfs_roc(struct inode *ino) { @@ -294,16 +384,9 @@ static inline void unset_pnfs_layoutdriver(struct nfs_server *s) { } -static inline void -pnfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *ino) -{ - pgio->pg_test = NULL; -} - -static inline void -pnfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, struct inode *ino) +static inline void pnfs_pageio_init(struct nfs_pageio_descriptor *pgio, + struct inode *inode) { - pgio->pg_test = NULL; } static inline void @@ -331,6 +414,10 @@ static inline int pnfs_layoutcommit_inode(struct inode *inode, bool sync) { return 0; } + +static inline void nfs4_deviceid_purge_client(struct nfs_client *ncl) +{ +} #endif /* CONFIG_NFS_V4_1 */ #endif /* FS_NFS_PNFS_H */ diff --git a/fs/nfs/pnfs_dev.c b/fs/nfs/pnfs_dev.c new file mode 100644 index 00000000000..c65e133ce9c --- /dev/null +++ b/fs/nfs/pnfs_dev.c @@ -0,0 +1,270 @@ +/* + * Device operations for the pnfs client. + * + * Copyright (c) 2002 + * The Regents of the University of Michigan + * All Rights Reserved + * + * Dean Hildebrand <dhildebz@umich.edu> + * Garth Goodson <Garth.Goodson@netapp.com> + * + * Permission is granted to use, copy, create derivative works, and + * redistribute this software and such derivative works for any purpose, + * so long as the name of the University of Michigan is not used in + * any advertising or publicity pertaining to the use or distribution + * of this software without specific, written prior authorization. If + * the above copyright notice or any other identification of the + * University of Michigan is included in any copy of any portion of + * this software, then the disclaimer below must also be included. + * + * This software is provided as is, without representation or warranty + * of any kind either express or implied, including without limitation + * the implied warranties of merchantability, fitness for a particular + * purpose, or noninfringement. The Regents of the University of + * Michigan shall not be liable for any damages, including special, + * indirect, incidental, or consequential damages, with respect to any + * claim arising out of or in connection with the use of the software, + * even if it has been or is hereafter advised of the possibility of + * such damages. + */ + +#include "pnfs.h" + +#define NFSDBG_FACILITY NFSDBG_PNFS + +/* + * Device ID RCU cache. A device ID is unique per server and layout type. + */ +#define NFS4_DEVICE_ID_HASH_BITS 5 +#define NFS4_DEVICE_ID_HASH_SIZE (1 << NFS4_DEVICE_ID_HASH_BITS) +#define NFS4_DEVICE_ID_HASH_MASK (NFS4_DEVICE_ID_HASH_SIZE - 1) + +static struct hlist_head nfs4_deviceid_cache[NFS4_DEVICE_ID_HASH_SIZE]; +static DEFINE_SPINLOCK(nfs4_deviceid_lock); + +void +nfs4_print_deviceid(const struct nfs4_deviceid *id) +{ + u32 *p = (u32 *)id; + + dprintk("%s: device id= [%x%x%x%x]\n", __func__, + p[0], p[1], p[2], p[3]); +} +EXPORT_SYMBOL_GPL(nfs4_print_deviceid); + +static inline u32 +nfs4_deviceid_hash(const struct nfs4_deviceid *id) +{ + unsigned char *cptr = (unsigned char *)id->data; + unsigned int nbytes = NFS4_DEVICEID4_SIZE; + u32 x = 0; + + while (nbytes--) { + x *= 37; + x += *cptr++; + } + return x & NFS4_DEVICE_ID_HASH_MASK; +} + +static struct nfs4_deviceid_node * +_lookup_deviceid(const struct pnfs_layoutdriver_type *ld, + const struct nfs_client *clp, const struct nfs4_deviceid *id, + long hash) +{ + struct nfs4_deviceid_node *d; + struct hlist_node *n; + + hlist_for_each_entry_rcu(d, n, &nfs4_deviceid_cache[hash], node) + if (d->ld == ld && d->nfs_client == clp && + !memcmp(&d->deviceid, id, sizeof(*id))) { + if (atomic_read(&d->ref)) + return d; + else + continue; + } + return NULL; +} + +/* + * Lookup a deviceid in cache and get a reference count on it if found + * + * @clp nfs_client associated with deviceid + * @id deviceid to look up + */ +struct nfs4_deviceid_node * +_find_get_deviceid(const struct pnfs_layoutdriver_type *ld, + const struct nfs_client *clp, const struct nfs4_deviceid *id, + long hash) +{ + struct nfs4_deviceid_node *d; + + rcu_read_lock(); + d = _lookup_deviceid(ld, clp, id, hash); + if (d && !atomic_inc_not_zero(&d->ref)) + d = NULL; + rcu_read_unlock(); + return d; +} + +struct nfs4_deviceid_node * +nfs4_find_get_deviceid(const struct pnfs_layoutdriver_type *ld, + const struct nfs_client *clp, const struct nfs4_deviceid *id) +{ + return _find_get_deviceid(ld, clp, id, nfs4_deviceid_hash(id)); +} +EXPORT_SYMBOL_GPL(nfs4_find_get_deviceid); + +/* + * Unhash and put deviceid + * + * @clp nfs_client associated with deviceid + * @id the deviceid to unhash + * + * @ret the unhashed node, if found and dereferenced to zero, NULL otherwise. + */ +struct nfs4_deviceid_node * +nfs4_unhash_put_deviceid(const struct pnfs_layoutdriver_type *ld, + const struct nfs_client *clp, const struct nfs4_deviceid *id) +{ + struct nfs4_deviceid_node *d; + + spin_lock(&nfs4_deviceid_lock); + rcu_read_lock(); + d = _lookup_deviceid(ld, clp, id, nfs4_deviceid_hash(id)); + rcu_read_unlock(); + if (!d) { + spin_unlock(&nfs4_deviceid_lock); + return NULL; + } + hlist_del_init_rcu(&d->node); + spin_unlock(&nfs4_deviceid_lock); + synchronize_rcu(); + + /* balance the initial ref set in pnfs_insert_deviceid */ + if (atomic_dec_and_test(&d->ref)) + return d; + + return NULL; +} +EXPORT_SYMBOL_GPL(nfs4_unhash_put_deviceid); + +/* + * Delete a deviceid from cache + * + * @clp struct nfs_client qualifying the deviceid + * @id deviceid to delete + */ +void +nfs4_delete_deviceid(const struct pnfs_layoutdriver_type *ld, + const struct nfs_client *clp, const struct nfs4_deviceid *id) +{ + struct nfs4_deviceid_node *d; + + d = nfs4_unhash_put_deviceid(ld, clp, id); + if (!d) + return; + d->ld->free_deviceid_node(d); +} +EXPORT_SYMBOL_GPL(nfs4_delete_deviceid); + +void +nfs4_init_deviceid_node(struct nfs4_deviceid_node *d, + const struct pnfs_layoutdriver_type *ld, + const struct nfs_client *nfs_client, + const struct nfs4_deviceid *id) +{ + INIT_HLIST_NODE(&d->node); + d->ld = ld; + d->nfs_client = nfs_client; + d->deviceid = *id; + atomic_set(&d->ref, 1); +} +EXPORT_SYMBOL_GPL(nfs4_init_deviceid_node); + +/* + * Uniquely initialize and insert a deviceid node into cache + * + * @new new deviceid node + * Note that the caller must set up the following members: + * new->ld + * new->nfs_client + * new->deviceid + * + * @ret the inserted node, if none found, otherwise, the found entry. + */ +struct nfs4_deviceid_node * +nfs4_insert_deviceid_node(struct nfs4_deviceid_node *new) +{ + struct nfs4_deviceid_node *d; + long hash; + + spin_lock(&nfs4_deviceid_lock); + hash = nfs4_deviceid_hash(&new->deviceid); + d = _find_get_deviceid(new->ld, new->nfs_client, &new->deviceid, hash); + if (d) { + spin_unlock(&nfs4_deviceid_lock); + return d; + } + + hlist_add_head_rcu(&new->node, &nfs4_deviceid_cache[hash]); + spin_unlock(&nfs4_deviceid_lock); + + return new; +} +EXPORT_SYMBOL_GPL(nfs4_insert_deviceid_node); + +/* + * Dereference a deviceid node and delete it when its reference count drops + * to zero. + * + * @d deviceid node to put + * + * @ret true iff the node was deleted + */ +bool +nfs4_put_deviceid_node(struct nfs4_deviceid_node *d) +{ + if (!atomic_dec_and_lock(&d->ref, &nfs4_deviceid_lock)) + return false; + hlist_del_init_rcu(&d->node); + spin_unlock(&nfs4_deviceid_lock); + synchronize_rcu(); + d->ld->free_deviceid_node(d); + return true; +} +EXPORT_SYMBOL_GPL(nfs4_put_deviceid_node); + +static void +_deviceid_purge_client(const struct nfs_client *clp, long hash) +{ + struct nfs4_deviceid_node *d; + struct hlist_node *n, *next; + HLIST_HEAD(tmp); + + rcu_read_lock(); + hlist_for_each_entry_rcu(d, n, &nfs4_deviceid_cache[hash], node) + if (d->nfs_client == clp && atomic_read(&d->ref)) { + hlist_del_init_rcu(&d->node); + hlist_add_head(&d->node, &tmp); + } + rcu_read_unlock(); + + if (hlist_empty(&tmp)) + return; + + synchronize_rcu(); + hlist_for_each_entry_safe(d, n, next, &tmp, node) + if (atomic_dec_and_test(&d->ref)) + d->ld->free_deviceid_node(d); +} + +void +nfs4_deviceid_purge_client(const struct nfs_client *clp) +{ + long h; + + spin_lock(&nfs4_deviceid_lock); + for (h = 0; h < NFS4_DEVICE_ID_HASH_SIZE; h++) + _deviceid_purge_client(clp, h); + spin_unlock(&nfs4_deviceid_lock); +} diff --git a/fs/nfs/read.c b/fs/nfs/read.c index 2bcf0dc306a..20a7f952e24 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -288,7 +288,9 @@ static int nfs_pagein_multi(struct nfs_pageio_descriptor *desc) atomic_set(&req->wb_complete, requests); BUG_ON(desc->pg_lseg != NULL); - lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_READ, GFP_KERNEL); + lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, + req_offset(req), desc->pg_count, + IOMODE_READ, GFP_KERNEL); ClearPageError(page); offset = 0; nbytes = desc->pg_count; @@ -351,7 +353,9 @@ static int nfs_pagein_one(struct nfs_pageio_descriptor *desc) } req = nfs_list_entry(data->pages.next); if ((!lseg) && list_is_singular(&data->pages)) - lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_READ, GFP_KERNEL); + lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, + req_offset(req), desc->pg_count, + IOMODE_READ, GFP_KERNEL); ret = nfs_read_rpcsetup(req, data, &nfs_read_full_ops, desc->pg_count, 0, lseg); @@ -660,7 +664,6 @@ int nfs_readpages(struct file *filp, struct address_space *mapping, if (ret == 0) goto read_complete; /* all pages were read */ - pnfs_pageio_init_read(&pgio, inode); if (rsize < PAGE_CACHE_SIZE) nfs_pageio_init(&pgio, inode, nfs_pagein_multi, rsize, 0); else diff --git a/fs/nfs/super.c b/fs/nfs/super.c index e288f06d3fa..ce40e5c568b 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -63,6 +63,7 @@ #include "iostat.h" #include "internal.h" #include "fscache.h" +#include "pnfs.h" #define NFSDBG_FACILITY NFSDBG_VFS @@ -732,6 +733,28 @@ static int nfs_show_options(struct seq_file *m, struct vfsmount *mnt) return 0; } +#ifdef CONFIG_NFS_V4_1 +void show_sessions(struct seq_file *m, struct nfs_server *server) +{ + if (nfs4_has_session(server->nfs_client)) + seq_printf(m, ",sessions"); +} +#else +void show_sessions(struct seq_file *m, struct nfs_server *server) {} +#endif + +#ifdef CONFIG_NFS_V4_1 +void show_pnfs(struct seq_file *m, struct nfs_server *server) +{ + seq_printf(m, ",pnfs="); + if (server->pnfs_curr_ld) + seq_printf(m, "%s", server->pnfs_curr_ld->name); + else + seq_printf(m, "not configured"); +} +#else /* CONFIG_NFS_V4_1 */ +void show_pnfs(struct seq_file *m, struct nfs_server *server) {} +#endif /* CONFIG_NFS_V4_1 */ static int nfs_show_devname(struct seq_file *m, struct vfsmount *mnt) { @@ -792,6 +815,8 @@ static int nfs_show_stats(struct seq_file *m, struct vfsmount *mnt) seq_printf(m, "bm0=0x%x", nfss->attr_bitmask[0]); seq_printf(m, ",bm1=0x%x", nfss->attr_bitmask[1]); seq_printf(m, ",acl=0x%x", nfss->acl_bitmask); + show_sessions(m, nfss); + show_pnfs(m, nfss); } #endif diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 49c715b4ac9..e268e3b2349 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -939,7 +939,9 @@ static int nfs_flush_multi(struct nfs_pageio_descriptor *desc) atomic_set(&req->wb_complete, requests); BUG_ON(desc->pg_lseg); - lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_RW, GFP_NOFS); + lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, + req_offset(req), desc->pg_count, + IOMODE_RW, GFP_NOFS); ClearPageError(page); offset = 0; nbytes = desc->pg_count; @@ -1013,7 +1015,9 @@ static int nfs_flush_one(struct nfs_pageio_descriptor *desc) } req = nfs_list_entry(data->pages.next); if ((!lseg) && list_is_singular(&data->pages)) - lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_RW, GFP_NOFS); + lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, + req_offset(req), desc->pg_count, + IOMODE_RW, GFP_NOFS); if ((desc->pg_ioflags & FLUSH_COND_STABLE) && (desc->pg_moreio || NFS_I(desc->pg_inode)->ncommit)) @@ -1032,8 +1036,6 @@ static void nfs_pageio_init_write(struct nfs_pageio_descriptor *pgio, { size_t wsize = NFS_SERVER(inode)->wsize; - pnfs_pageio_init_write(pgio, inode); - if (wsize < PAGE_CACHE_SIZE) nfs_pageio_init(pgio, inode, nfs_flush_multi, wsize, ioflags); else diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c index ad000aeb21a..b9566e46219 100644 --- a/fs/nfsd/export.c +++ b/fs/nfsd/export.c @@ -1354,12 +1354,6 @@ exp_pseudoroot(struct svc_rqst *rqstp, struct svc_fh *fhp) if (IS_ERR(exp)) return nfserrno(PTR_ERR(exp)); rv = fh_compose(fhp, exp, exp->ex_path.dentry, NULL); - if (rv) - goto out; - rv = check_nfsd_access(exp, rqstp); - if (rv) - fh_put(fhp); -out: exp_put(exp); return rv; } diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c index 2247fc91d5e..9095f3c21df 100644 --- a/fs/nfsd/nfs3proc.c +++ b/fs/nfsd/nfs3proc.c @@ -245,7 +245,7 @@ nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp, } /* Now create the file and set attributes */ - nfserr = nfsd_create_v3(rqstp, dirfhp, argp->name, argp->len, + nfserr = do_nfsd_create(rqstp, dirfhp, argp->name, argp->len, attr, newfhp, argp->createmode, argp->verf, NULL, NULL); diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c index ad48faca20f..08c6e36ab2e 100644 --- a/fs/nfsd/nfs3xdr.c +++ b/fs/nfsd/nfs3xdr.c @@ -842,7 +842,7 @@ out: return rv; } -__be32 *encode_entryplus_baggage(struct nfsd3_readdirres *cd, __be32 *p, const char *name, int namlen) +static __be32 *encode_entryplus_baggage(struct nfsd3_readdirres *cd, __be32 *p, const char *name, int namlen) { struct svc_fh fh; int err; diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 5fcb1396a7e..3a6dbd70b34 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -196,9 +196,9 @@ do_open_lookup(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_o /* * Note: create modes (UNCHECKED,GUARDED...) are the same - * in NFSv4 as in v3. + * in NFSv4 as in v3 except EXCLUSIVE4_1. */ - status = nfsd_create_v3(rqstp, current_fh, open->op_fname.data, + status = do_nfsd_create(rqstp, current_fh, open->op_fname.data, open->op_fname.len, &open->op_iattr, &resfh, open->op_createmode, (u32 *)open->op_verf.data, @@ -403,7 +403,7 @@ nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, cstate->current_fh.fh_handle.fh_size = putfh->pf_fhlen; memcpy(&cstate->current_fh.fh_handle.fh_base, putfh->pf_fhval, putfh->pf_fhlen); - return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_NOP); + return fh_verify(rqstp, &cstate->current_fh, 0, NFSD_MAY_BYPASS_GSS); } static __be32 @@ -762,6 +762,9 @@ nfsd4_secinfo(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, __be32 err; fh_init(&resfh, NFS4_FHSIZE); + err = fh_verify(rqstp, &cstate->current_fh, S_IFDIR, NFSD_MAY_EXEC); + if (err) + return err; err = nfsd_lookup_dentry(rqstp, &cstate->current_fh, secinfo->si_name, secinfo->si_namelen, &exp, &dentry); @@ -986,6 +989,9 @@ enum nfsd4_op_flags { ALLOWED_WITHOUT_FH = 1 << 0, /* No current filehandle required */ ALLOWED_ON_ABSENT_FS = 1 << 1, /* ops processed on absent fs */ ALLOWED_AS_FIRST_OP = 1 << 2, /* ops reqired first in compound */ + /* For rfc 5661 section 2.6.3.1.1: */ + OP_HANDLES_WRONGSEC = 1 << 3, + OP_IS_PUTFH_LIKE = 1 << 4, }; struct nfsd4_operation { @@ -1031,6 +1037,44 @@ static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args) return nfs_ok; } +static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op) +{ + return &nfsd4_ops[op->opnum]; +} + +static bool need_wrongsec_check(struct svc_rqst *rqstp) +{ + struct nfsd4_compoundres *resp = rqstp->rq_resp; + struct nfsd4_compoundargs *argp = rqstp->rq_argp; + struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; + struct nfsd4_op *next = &argp->ops[resp->opcnt]; + struct nfsd4_operation *thisd; + struct nfsd4_operation *nextd; + + thisd = OPDESC(this); + /* + * Most ops check wronsec on our own; only the putfh-like ops + * have special rules. + */ + if (!(thisd->op_flags & OP_IS_PUTFH_LIKE)) + return false; + /* + * rfc 5661 2.6.3.1.1.6: don't bother erroring out a + * put-filehandle operation if we're not going to use the + * result: + */ + if (argp->opcnt == resp->opcnt) + return false; + + nextd = OPDESC(next); + /* + * Rest of 2.6.3.1.1: certain operations will return WRONGSEC + * errors themselves as necessary; others should check for them + * now: + */ + return !(nextd->op_flags & OP_HANDLES_WRONGSEC); +} + /* * COMPOUND call. */ @@ -1108,7 +1152,7 @@ nfsd4_proc_compound(struct svc_rqst *rqstp, goto encode_op; } - opdesc = &nfsd4_ops[op->opnum]; + opdesc = OPDESC(op); if (!cstate->current_fh.fh_dentry) { if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) { @@ -1126,6 +1170,9 @@ nfsd4_proc_compound(struct svc_rqst *rqstp, else BUG_ON(op->status == nfs_ok); + if (!op->status && need_wrongsec_check(rqstp)) + op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp); + encode_op: /* Only from SEQUENCE */ if (resp->cstate.status == nfserr_replay_cache) { @@ -1217,10 +1264,12 @@ static struct nfsd4_operation nfsd4_ops[] = { }, [OP_LOOKUP] = { .op_func = (nfsd4op_func)nfsd4_lookup, + .op_flags = OP_HANDLES_WRONGSEC, .op_name = "OP_LOOKUP", }, [OP_LOOKUPP] = { .op_func = (nfsd4op_func)nfsd4_lookupp, + .op_flags = OP_HANDLES_WRONGSEC, .op_name = "OP_LOOKUPP", }, [OP_NVERIFY] = { @@ -1229,6 +1278,7 @@ static struct nfsd4_operation nfsd4_ops[] = { }, [OP_OPEN] = { .op_func = (nfsd4op_func)nfsd4_open, + .op_flags = OP_HANDLES_WRONGSEC, .op_name = "OP_OPEN", }, [OP_OPEN_CONFIRM] = { @@ -1241,17 +1291,20 @@ static struct nfsd4_operation nfsd4_ops[] = { }, [OP_PUTFH] = { .op_func = (nfsd4op_func)nfsd4_putfh, - .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, + .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS + | OP_IS_PUTFH_LIKE, .op_name = "OP_PUTFH", }, [OP_PUTPUBFH] = { .op_func = (nfsd4op_func)nfsd4_putrootfh, - .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, + .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS + | OP_IS_PUTFH_LIKE, .op_name = "OP_PUTPUBFH", }, [OP_PUTROOTFH] = { .op_func = (nfsd4op_func)nfsd4_putrootfh, - .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, + .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS + | OP_IS_PUTFH_LIKE, .op_name = "OP_PUTROOTFH", }, [OP_READ] = { @@ -1281,15 +1334,18 @@ static struct nfsd4_operation nfsd4_ops[] = { }, [OP_RESTOREFH] = { .op_func = (nfsd4op_func)nfsd4_restorefh, - .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS, + .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS + | OP_IS_PUTFH_LIKE, .op_name = "OP_RESTOREFH", }, [OP_SAVEFH] = { .op_func = (nfsd4op_func)nfsd4_savefh, + .op_flags = OP_HANDLES_WRONGSEC, .op_name = "OP_SAVEFH", }, [OP_SECINFO] = { .op_func = (nfsd4op_func)nfsd4_secinfo, + .op_flags = OP_HANDLES_WRONGSEC, .op_name = "OP_SECINFO", }, [OP_SETATTR] = { @@ -1353,6 +1409,7 @@ static struct nfsd4_operation nfsd4_ops[] = { }, [OP_SECINFO_NO_NAME] = { .op_func = (nfsd4op_func)nfsd4_secinfo_no_name, + .op_flags = OP_HANDLES_WRONGSEC, .op_name = "OP_SECINFO_NO_NAME", }, }; diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 4cf04e11c66..e98f3c2e949 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -1519,6 +1519,9 @@ nfsd4_create_session(struct svc_rqst *rqstp, bool confirm_me = false; int status = 0; + if (cr_ses->flags & ~SESSION4_FLAG_MASK_A) + return nfserr_inval; + nfs4_lock_state(); unconf = find_unconfirmed_client(&cr_ses->clientid); conf = find_confirmed_client(&cr_ses->clientid); @@ -1637,8 +1640,9 @@ __be32 nfsd4_bind_conn_to_session(struct svc_rqst *rqstp, return nfserr_badsession; status = nfsd4_map_bcts_dir(&bcts->dir); - nfsd4_new_conn(rqstp, cstate->session, bcts->dir); - return nfs_ok; + if (!status) + nfsd4_new_conn(rqstp, cstate->session, bcts->dir); + return status; } static bool nfsd4_compound_in_session(struct nfsd4_session *session, struct nfs4_sessionid *sid) @@ -1725,6 +1729,13 @@ static void nfsd4_sequence_check_conn(struct nfsd4_conn *new, struct nfsd4_sessi return; } +static bool nfsd4_session_too_many_ops(struct svc_rqst *rqstp, struct nfsd4_session *session) +{ + struct nfsd4_compoundargs *args = rqstp->rq_argp; + + return args->opcnt > session->se_fchannel.maxops; +} + __be32 nfsd4_sequence(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, @@ -1753,6 +1764,10 @@ nfsd4_sequence(struct svc_rqst *rqstp, if (!session) goto out; + status = nfserr_too_many_ops; + if (nfsd4_session_too_many_ops(rqstp, session)) + goto out; + status = nfserr_badslot; if (seq->slotid >= session->se_fchannel.maxreqs) goto out; @@ -1808,6 +1823,8 @@ out: __be32 nfsd4_reclaim_complete(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_reclaim_complete *rc) { + int status = 0; + if (rc->rca_one_fs) { if (!cstate->current_fh.fh_dentry) return nfserr_nofilehandle; @@ -1817,9 +1834,14 @@ nfsd4_reclaim_complete(struct svc_rqst *rqstp, struct nfsd4_compound_state *csta */ return nfs_ok; } + nfs4_lock_state(); - if (is_client_expired(cstate->session->se_client)) { - nfs4_unlock_state(); + status = nfserr_complete_already; + if (cstate->session->se_client->cl_firststate) + goto out; + + status = nfserr_stale_clientid; + if (is_client_expired(cstate->session->se_client)) /* * The following error isn't really legal. * But we only get here if the client just explicitly @@ -1827,11 +1849,13 @@ nfsd4_reclaim_complete(struct svc_rqst *rqstp, struct nfsd4_compound_state *csta * error it gets back on an operation for the dead * client. */ - return nfserr_stale_clientid; - } + goto out; + + status = nfs_ok; nfsd4_create_clid_dir(cstate->session->se_client); +out: nfs4_unlock_state(); - return nfs_ok; + return status; } __be32 @@ -2462,7 +2486,7 @@ find_delegation_file(struct nfs4_file *fp, stateid_t *stid) return NULL; } -int share_access_to_flags(u32 share_access) +static int share_access_to_flags(u32 share_access) { share_access &= ~NFS4_SHARE_WANT_MASK; @@ -2882,7 +2906,7 @@ out: return status; } -struct lock_manager nfsd4_manager = { +static struct lock_manager nfsd4_manager = { }; static void diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index c6766af00d9..99018110321 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -424,15 +424,12 @@ nfsd4_decode_access(struct nfsd4_compoundargs *argp, struct nfsd4_access *access static __be32 nfsd4_decode_bind_conn_to_session(struct nfsd4_compoundargs *argp, struct nfsd4_bind_conn_to_session *bcts) { DECODE_HEAD; - u32 dummy; READ_BUF(NFS4_MAX_SESSIONID_LEN + 8); COPYMEM(bcts->sessionid.data, NFS4_MAX_SESSIONID_LEN); READ32(bcts->dir); - /* XXX: Perhaps Tom Tucker could help us figure out how we - * should be using ctsa_use_conn_in_rdma_mode: */ - READ32(dummy); - + /* XXX: skipping ctsa_use_conn_in_rdma_mode. Perhaps Tom Tucker + * could help us figure out we should be using it. */ DECODE_TAIL; } @@ -588,8 +585,6 @@ nfsd4_decode_lockt(struct nfsd4_compoundargs *argp, struct nfsd4_lockt *lockt) READ_BUF(lockt->lt_owner.len); READMEM(lockt->lt_owner.data, lockt->lt_owner.len); - if (argp->minorversion && !zero_clientid(&lockt->lt_clientid)) - return nfserr_inval; DECODE_TAIL; } @@ -3120,7 +3115,7 @@ nfsd4_encode_destroy_session(struct nfsd4_compoundres *resp, int nfserr, return nfserr; } -__be32 +static __be32 nfsd4_encode_sequence(struct nfsd4_compoundres *resp, int nfserr, struct nfsd4_sequence *seq) { diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c index 55c8e63af0b..90c6aa6d5e0 100644 --- a/fs/nfsd/nfsfh.c +++ b/fs/nfsd/nfsfh.c @@ -344,7 +344,7 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access) * which clients virtually always use auth_sys for, * even while using RPCSEC_GSS for NFS. */ - if (access & NFSD_MAY_LOCK) + if (access & NFSD_MAY_LOCK || access & NFSD_MAY_BYPASS_GSS) goto skip_pseudoflavor_check; /* * Clients may expect to be able to use auth_sys during mount, diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 129f3c9f62d..d5718273bb3 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -181,16 +181,10 @@ nfsd_lookup_dentry(struct svc_rqst *rqstp, struct svc_fh *fhp, struct svc_export *exp; struct dentry *dparent; struct dentry *dentry; - __be32 err; int host_err; dprintk("nfsd: nfsd_lookup(fh %s, %.*s)\n", SVCFH_fmt(fhp), len,name); - /* Obtain dentry and export. */ - err = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_EXEC); - if (err) - return err; - dparent = fhp->fh_dentry; exp = fhp->fh_export; exp_get(exp); @@ -254,6 +248,9 @@ nfsd_lookup(struct svc_rqst *rqstp, struct svc_fh *fhp, const char *name, struct dentry *dentry; __be32 err; + err = fh_verify(rqstp, fhp, S_IFDIR, NFSD_MAY_EXEC); + if (err) + return err; err = nfsd_lookup_dentry(rqstp, fhp, name, len, &exp, &dentry); if (err) return err; @@ -877,13 +874,11 @@ static __be32 nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file, loff_t offset, struct kvec *vec, int vlen, unsigned long *count) { - struct inode *inode; mm_segment_t oldfs; __be32 err; int host_err; err = nfserr_perm; - inode = file->f_path.dentry->d_inode; if (file->f_op->splice_read && rqstp->rq_splice_ok) { struct splice_desc sd = { @@ -1340,11 +1335,18 @@ out_nfserr: } #ifdef CONFIG_NFSD_V3 + +static inline int nfsd_create_is_exclusive(int createmode) +{ + return createmode == NFS3_CREATE_EXCLUSIVE + || createmode == NFS4_CREATE_EXCLUSIVE4_1; +} + /* - * NFSv3 version of nfsd_create + * NFSv3 and NFSv4 version of nfsd_create */ __be32 -nfsd_create_v3(struct svc_rqst *rqstp, struct svc_fh *fhp, +do_nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp, char *fname, int flen, struct iattr *iap, struct svc_fh *resfhp, int createmode, u32 *verifier, int *truncp, int *created) @@ -1396,7 +1398,7 @@ nfsd_create_v3(struct svc_rqst *rqstp, struct svc_fh *fhp, if (err) goto out; - if (createmode == NFS3_CREATE_EXCLUSIVE) { + if (nfsd_create_is_exclusive(createmode)) { /* solaris7 gets confused (bugid 4218508) if these have * the high bit set, so just clear the high bits. If this is * ever changed to use different attrs for storing the @@ -1437,6 +1439,11 @@ nfsd_create_v3(struct svc_rqst *rqstp, struct svc_fh *fhp, && dchild->d_inode->i_atime.tv_sec == v_atime && dchild->d_inode->i_size == 0 ) break; + case NFS4_CREATE_EXCLUSIVE4_1: + if ( dchild->d_inode->i_mtime.tv_sec == v_mtime + && dchild->d_inode->i_atime.tv_sec == v_atime + && dchild->d_inode->i_size == 0 ) + goto set_attr; /* fallthru */ case NFS3_CREATE_GUARDED: err = nfserr_exist; @@ -1455,7 +1462,7 @@ nfsd_create_v3(struct svc_rqst *rqstp, struct svc_fh *fhp, nfsd_check_ignore_resizing(iap); - if (createmode == NFS3_CREATE_EXCLUSIVE) { + if (nfsd_create_is_exclusive(createmode)) { /* Cram the verifier into atime/mtime */ iap->ia_valid = ATTR_MTIME|ATTR_ATIME | ATTR_MTIME_SET|ATTR_ATIME_SET; @@ -2034,7 +2041,7 @@ nfsd_permission(struct svc_rqst *rqstp, struct svc_export *exp, struct inode *inode = dentry->d_inode; int err; - if (acc == NFSD_MAY_NOP) + if ((acc & NFSD_MAY_MASK) == NFSD_MAY_NOP) return 0; #if 0 dprintk("nfsd: permission 0x%x%s%s%s%s%s%s%s mode 0%o%s%s%s\n", diff --git a/fs/nfsd/vfs.h b/fs/nfsd/vfs.h index 9a370a5e36b..e0bbac04d1d 100644 --- a/fs/nfsd/vfs.h +++ b/fs/nfsd/vfs.h @@ -17,10 +17,14 @@ #define NFSD_MAY_SATTR 8 #define NFSD_MAY_TRUNC 16 #define NFSD_MAY_LOCK 32 +#define NFSD_MAY_MASK 63 + +/* extra hints to permission and open routines: */ #define NFSD_MAY_OWNER_OVERRIDE 64 #define NFSD_MAY_LOCAL_ACCESS 128 /* IRIX doing local access check on device special file*/ #define NFSD_MAY_BYPASS_GSS_ON_ROOT 256 #define NFSD_MAY_NOT_BREAK_LEASE 512 +#define NFSD_MAY_BYPASS_GSS 1024 #define NFSD_MAY_CREATE (NFSD_MAY_EXEC|NFSD_MAY_WRITE) #define NFSD_MAY_REMOVE (NFSD_MAY_EXEC|NFSD_MAY_WRITE|NFSD_MAY_TRUNC) @@ -54,7 +58,7 @@ __be32 nfsd_create(struct svc_rqst *, struct svc_fh *, int type, dev_t rdev, struct svc_fh *res); #ifdef CONFIG_NFSD_V3 __be32 nfsd_access(struct svc_rqst *, struct svc_fh *, u32 *, u32 *); -__be32 nfsd_create_v3(struct svc_rqst *, struct svc_fh *, +__be32 do_nfsd_create(struct svc_rqst *, struct svc_fh *, char *name, int len, struct iattr *attrs, struct svc_fh *res, int createmode, u32 *verifier, int *truncp, int *created); diff --git a/fs/proc/base.c b/fs/proc/base.c index 4ede550517a..14def991d9d 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -83,6 +83,9 @@ #include <linux/pid_namespace.h> #include <linux/fs_struct.h> #include <linux/slab.h> +#ifdef CONFIG_HARDWALL +#include <asm/hardwall.h> +#endif #include "internal.h" /* NOTE: @@ -2842,6 +2845,9 @@ static const struct pid_entry tgid_base_stuff[] = { #ifdef CONFIG_TASK_IO_ACCOUNTING INF("io", S_IRUGO, proc_tgid_io_accounting), #endif +#ifdef CONFIG_HARDWALL + INF("hardwall", S_IRUGO, proc_pid_hardwall), +#endif }; static int proc_tgid_base_readdir(struct file * filp, @@ -3181,6 +3187,9 @@ static const struct pid_entry tid_base_stuff[] = { #ifdef CONFIG_TASK_IO_ACCOUNTING INF("io", S_IRUGO, proc_tid_io_accounting), #endif +#ifdef CONFIG_HARDWALL + INF("hardwall", S_IRUGO, proc_pid_hardwall), +#endif }; static int proc_tid_base_readdir(struct file * filp, diff --git a/fs/squashfs/export.c b/fs/squashfs/export.c index 730c56248c9..5e1101ff276 100644 --- a/fs/squashfs/export.c +++ b/fs/squashfs/export.c @@ -147,7 +147,7 @@ __le64 *squashfs_read_inode_lookup_table(struct super_block *sb, * table[0] points to the first inode lookup table metadata block, * this should be less than lookup_table_start */ - if (!IS_ERR(table) && table[0] >= lookup_table_start) { + if (!IS_ERR(table) && le64_to_cpu(table[0]) >= lookup_table_start) { kfree(table); return ERR_PTR(-EINVAL); } diff --git a/fs/squashfs/fragment.c b/fs/squashfs/fragment.c index 1516a6490bf..0ed6edbc5c7 100644 --- a/fs/squashfs/fragment.c +++ b/fs/squashfs/fragment.c @@ -90,7 +90,7 @@ __le64 *squashfs_read_fragment_index_table(struct super_block *sb, * table[0] points to the first fragment table metadata block, this * should be less than fragment_table_start */ - if (!IS_ERR(table) && table[0] >= fragment_table_start) { + if (!IS_ERR(table) && le64_to_cpu(table[0]) >= fragment_table_start) { kfree(table); return ERR_PTR(-EINVAL); } diff --git a/fs/squashfs/id.c b/fs/squashfs/id.c index a70858e0fb4..d38ea3dab95 100644 --- a/fs/squashfs/id.c +++ b/fs/squashfs/id.c @@ -93,7 +93,7 @@ __le64 *squashfs_read_id_index_table(struct super_block *sb, * table[0] points to the first id lookup table metadata block, this * should be less than id_table_start */ - if (!IS_ERR(table) && table[0] >= id_table_start) { + if (!IS_ERR(table) && le64_to_cpu(table[0]) >= id_table_start) { kfree(table); return ERR_PTR(-EINVAL); } diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c index 6f26abee359..7438850c62d 100644 --- a/fs/squashfs/super.c +++ b/fs/squashfs/super.c @@ -245,7 +245,7 @@ allocate_id_index_table: msblk->id_table = NULL; goto failed_mount; } - next_table = msblk->id_table[0]; + next_table = le64_to_cpu(msblk->id_table[0]); /* Handle inode lookup table */ lookup_table_start = le64_to_cpu(sblk->lookup_table_start); @@ -261,7 +261,7 @@ allocate_id_index_table: msblk->inode_lookup_table = NULL; goto failed_mount; } - next_table = msblk->inode_lookup_table[0]; + next_table = le64_to_cpu(msblk->inode_lookup_table[0]); sb->s_export_op = &squashfs_export_ops; @@ -286,7 +286,7 @@ handle_fragments: msblk->fragment_index = NULL; goto failed_mount; } - next_table = msblk->fragment_index[0]; + next_table = le64_to_cpu(msblk->fragment_index[0]); check_directory_table: /* Sanity check directory_table */ diff --git a/fs/ubifs/shrinker.c b/fs/ubifs/shrinker.c index 46961c00323..ca953a94502 100644 --- a/fs/ubifs/shrinker.c +++ b/fs/ubifs/shrinker.c @@ -277,8 +277,9 @@ static int kick_a_thread(void) return 0; } -int ubifs_shrinker(struct shrinker *shrink, int nr, gfp_t gfp_mask) +int ubifs_shrinker(struct shrinker *shrink, struct shrink_control *sc) { + int nr = sc->nr_to_scan; int freed, contention = 0; long clean_zn_cnt = atomic_long_read(&ubifs_clean_zn_cnt); diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index 93d1412a06f..a70d7b4ffb2 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -1614,7 +1614,7 @@ int ubifs_tnc_start_commit(struct ubifs_info *c, struct ubifs_zbranch *zroot); int ubifs_tnc_end_commit(struct ubifs_info *c); /* shrinker.c */ -int ubifs_shrinker(struct shrinker *shrink, int nr_to_scan, gfp_t gfp_mask); +int ubifs_shrinker(struct shrinker *shrink, struct shrink_control *sc); /* commit.c */ int ubifs_bg_thread(void *info); diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h index a3252a5ead6..a756bc8d866 100644 --- a/include/acpi/acpiosxf.h +++ b/include/acpi/acpiosxf.h @@ -98,6 +98,9 @@ acpi_os_table_override(struct acpi_table_header *existing_table, /* * Spinlock primitives */ +acpi_status +acpi_os_create_lock(acpi_spinlock *out_handle); + void acpi_os_delete_lock(acpi_spinlock handle); acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle); diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index f6ad63d25b7..2ed0a8486c1 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -47,7 +47,7 @@ /* Current ACPICA subsystem version in YYYYMMDD format */ -#define ACPI_CA_VERSION 0x20110316 +#define ACPI_CA_VERSION 0x20110413 #include "actypes.h" #include "actbl.h" diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index 64f838beaab..b67231bef63 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -501,8 +501,9 @@ typedef u64 acpi_integer; #define ACPI_STATE_D1 (u8) 1 #define ACPI_STATE_D2 (u8) 2 #define ACPI_STATE_D3 (u8) 3 -#define ACPI_D_STATES_MAX ACPI_STATE_D3 -#define ACPI_D_STATE_COUNT 4 +#define ACPI_STATE_D3_COLD (u8) 4 +#define ACPI_D_STATES_MAX ACPI_STATE_D3_COLD +#define ACPI_D_STATE_COUNT 5 #define ACPI_STATE_C0 (u8) 0 #define ACPI_STATE_C1 (u8) 1 @@ -712,8 +713,24 @@ typedef u8 acpi_adr_space_type; #define ACPI_ADR_SPACE_CMOS (acpi_adr_space_type) 5 #define ACPI_ADR_SPACE_PCI_BAR_TARGET (acpi_adr_space_type) 6 #define ACPI_ADR_SPACE_IPMI (acpi_adr_space_type) 7 -#define ACPI_ADR_SPACE_DATA_TABLE (acpi_adr_space_type) 8 -#define ACPI_ADR_SPACE_FIXED_HARDWARE (acpi_adr_space_type) 127 + +#define ACPI_NUM_PREDEFINED_REGIONS 8 + +/* + * Special Address Spaces + * + * Note: A Data Table region is a special type of operation region + * that has its own AML opcode. However, internally, the AML + * interpreter simply creates an operation region with an an address + * space type of ACPI_ADR_SPACE_DATA_TABLE. + */ +#define ACPI_ADR_SPACE_DATA_TABLE (acpi_adr_space_type) 0x7E /* Internal to ACPICA only */ +#define ACPI_ADR_SPACE_FIXED_HARDWARE (acpi_adr_space_type) 0x7F + +/* Values for _REG connection code */ + +#define ACPI_REG_DISCONNECT 0 +#define ACPI_REG_CONNECT 1 /* * bit_register IDs diff --git a/include/acpi/processor.h b/include/acpi/processor.h index 55192ac0ced..ba4928cae47 100644 --- a/include/acpi/processor.h +++ b/include/acpi/processor.h @@ -310,14 +310,7 @@ static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit) /* in processor_core.c */ void acpi_processor_set_pdc(acpi_handle handle); -#ifdef CONFIG_SMP int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id); -#else -static inline int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id) -{ - return -1; -} -#endif /* in processor_throttling.c */ int acpi_processor_tstate_has_changed(struct acpi_processor *pr); diff --git a/include/linux/acpi.h b/include/linux/acpi.h index a2e910e0129..1deb2a73c2d 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -150,8 +150,7 @@ extern int ec_read(u8 addr, u8 *val); extern int ec_write(u8 addr, u8 val); extern int ec_transaction(u8 command, const u8 *wdata, unsigned wdata_len, - u8 *rdata, unsigned rdata_len, - int force_poll); + u8 *rdata, unsigned rdata_len); #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE) diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index 32a4423710f..4427e045405 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -191,6 +191,12 @@ struct dm_target { /* Used to provide an error string from the ctr */ char *error; + + /* + * Set if this target needs to receive discards regardless of + * whether or not its underlying devices have support. + */ + unsigned discards_supported:1; }; /* Each target can link one of these into the table */ diff --git a/include/linux/dm-io.h b/include/linux/dm-io.h index 5c9186b93ff..f4b0aa3126f 100644 --- a/include/linux/dm-io.h +++ b/include/linux/dm-io.h @@ -69,8 +69,7 @@ struct dm_io_request { * * Create/destroy may block. */ -struct dm_io_client *dm_io_client_create(unsigned num_pages); -int dm_io_client_resize(unsigned num_pages, struct dm_io_client *client); +struct dm_io_client *dm_io_client_create(void); void dm_io_client_destroy(struct dm_io_client *client); /* diff --git a/include/linux/dm-kcopyd.h b/include/linux/dm-kcopyd.h index 5db21631169..298d587e349 100644 --- a/include/linux/dm-kcopyd.h +++ b/include/linux/dm-kcopyd.h @@ -25,8 +25,7 @@ * To use kcopyd you must first create a dm_kcopyd_client object. */ struct dm_kcopyd_client; -int dm_kcopyd_client_create(unsigned num_pages, - struct dm_kcopyd_client **result); +struct dm_kcopyd_client *dm_kcopyd_client_create(void); void dm_kcopyd_client_destroy(struct dm_kcopyd_client *kc); /* diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 2a78aae78c6..027935c86c6 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -264,6 +264,8 @@ struct mm_struct { struct linux_binfmt *binfmt; + cpumask_var_t cpu_vm_mask_var; + /* Architecture-specific MM context */ mm_context_t context; @@ -311,10 +313,18 @@ struct mm_struct { #ifdef CONFIG_TRANSPARENT_HUGEPAGE pgtable_t pmd_huge_pte; /* protected by page_table_lock */ #endif - - cpumask_var_t cpu_vm_mask_var; +#ifdef CONFIG_CPUMASK_OFFSTACK + struct cpumask cpumask_allocation; +#endif }; +static inline void mm_init_cpumask(struct mm_struct *mm) +{ +#ifdef CONFIG_CPUMASK_OFFSTACK + mm->cpu_vm_mask_var = &mm->cpumask_allocation; +#endif +} + /* Future-safe accessor for struct mm_struct's cpu_vm_mask. */ static inline cpumask_t *mm_cpumask(struct mm_struct *mm) { diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h index 178fafe0ff9..504b289ba68 100644 --- a/include/linux/nfs4.h +++ b/include/linux/nfs4.h @@ -562,6 +562,7 @@ enum { NFSPROC4_CLNT_LAYOUTGET, NFSPROC4_CLNT_GETDEVICEINFO, NFSPROC4_CLNT_LAYOUTCOMMIT, + NFSPROC4_CLNT_LAYOUTRETURN, }; /* nfs41 types */ @@ -570,9 +571,11 @@ struct nfs4_sessionid { }; /* Create Session Flags */ -#define SESSION4_PERSIST 0x001 -#define SESSION4_BACK_CHAN 0x002 -#define SESSION4_RDMA 0x004 +#define SESSION4_PERSIST 0x001 +#define SESSION4_BACK_CHAN 0x002 +#define SESSION4_RDMA 0x004 + +#define SESSION4_FLAG_MASK_A 0x007 enum state_protect_how4 { SP4_NONE = 0, diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index 91af2e49fa3..3a34e80ae92 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -68,7 +68,7 @@ struct nfs_pageio_descriptor { int pg_ioflags; int pg_error; struct pnfs_layout_segment *pg_lseg; - int (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, struct nfs_page *); + bool (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, struct nfs_page *); }; #define NFS_WBACK_BUSY(req) (test_bit(PG_BUSY,&(req)->wb_flags)) diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 7e371f7df9c..5e8444a11ad 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -269,6 +269,27 @@ struct nfs4_layoutcommit_data { struct nfs4_layoutcommit_res res; }; +struct nfs4_layoutreturn_args { + __u32 layout_type; + struct inode *inode; + nfs4_stateid stateid; + struct nfs4_sequence_args seq_args; +}; + +struct nfs4_layoutreturn_res { + struct nfs4_sequence_res seq_res; + u32 lrs_present; + nfs4_stateid stateid; +}; + +struct nfs4_layoutreturn { + struct nfs4_layoutreturn_args args; + struct nfs4_layoutreturn_res res; + struct rpc_cred *cred; + struct nfs_client *clp; + int rpc_status; +}; + /* * Arguments to the open call. */ @@ -1087,6 +1108,7 @@ struct nfs_read_data { const struct rpc_call_ops *mds_ops; int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data); __u64 mds_offset; + int pnfs_error; struct page *page_array[NFS_PAGEVEC_SIZE]; }; @@ -1112,6 +1134,7 @@ struct nfs_write_data { unsigned long timestamp; /* For lease renewal */ #endif __u64 mds_offset; /* Filelayout dense stripe */ + int pnfs_error; struct page *page_array[NFS_PAGEVEC_SIZE]; }; diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 79a6700b716..6081493db68 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -308,7 +308,7 @@ static inline void SetPageUptodate(struct page *page) { #ifdef CONFIG_S390 if (!test_and_set_bit(PG_uptodate, &page->flags)) - page_set_storage_key(page_to_pfn(page), PAGE_DEFAULT_KEY, 0); + page_set_storage_key(page_to_phys(page), PAGE_DEFAULT_KEY, 0); #else /* * Memory barrier must be issued before setting the PG_uptodate bit, diff --git a/include/linux/pm_qos_params.h b/include/linux/pm_qos_params.h index 77cbddb3784..a7d87f911ca 100644 --- a/include/linux/pm_qos_params.h +++ b/include/linux/pm_qos_params.h @@ -16,6 +16,10 @@ #define PM_QOS_NUM_CLASSES 4 #define PM_QOS_DEFAULT_VALUE -1 +#define PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE (2000 * USEC_PER_SEC) +#define PM_QOS_NETWORK_LAT_DEFAULT_VALUE (2000 * USEC_PER_SEC) +#define PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE 0 + struct pm_qos_request_list { struct plist_node list; int pm_qos_class; diff --git a/include/linux/pnfs_osd_xdr.h b/include/linux/pnfs_osd_xdr.h new file mode 100644 index 00000000000..76efbdd0162 --- /dev/null +++ b/include/linux/pnfs_osd_xdr.h @@ -0,0 +1,345 @@ +/* + * pNFS-osd on-the-wire data structures + * + * Copyright (C) 2007 Panasas Inc. [year of first publication] + * All rights reserved. + * + * Benny Halevy <bhalevy@panasas.com> + * Boaz Harrosh <bharrosh@panasas.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * See the file COPYING included with this distribution for more details. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Panasas company nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef __PNFS_OSD_XDR_H__ +#define __PNFS_OSD_XDR_H__ + +#include <linux/nfs_fs.h> +#include <linux/nfs_page.h> +#include <scsi/osd_protocol.h> + +#define PNFS_OSD_OSDNAME_MAXSIZE 256 + +/* + * draft-ietf-nfsv4-minorversion-22 + * draft-ietf-nfsv4-pnfs-obj-12 + */ + +/* Layout Structure */ + +enum pnfs_osd_raid_algorithm4 { + PNFS_OSD_RAID_0 = 1, + PNFS_OSD_RAID_4 = 2, + PNFS_OSD_RAID_5 = 3, + PNFS_OSD_RAID_PQ = 4 /* Reed-Solomon P+Q */ +}; + +/* struct pnfs_osd_data_map4 { + * uint32_t odm_num_comps; + * length4 odm_stripe_unit; + * uint32_t odm_group_width; + * uint32_t odm_group_depth; + * uint32_t odm_mirror_cnt; + * pnfs_osd_raid_algorithm4 odm_raid_algorithm; + * }; + */ +struct pnfs_osd_data_map { + u32 odm_num_comps; + u64 odm_stripe_unit; + u32 odm_group_width; + u32 odm_group_depth; + u32 odm_mirror_cnt; + u32 odm_raid_algorithm; +}; + +/* struct pnfs_osd_objid4 { + * deviceid4 oid_device_id; + * uint64_t oid_partition_id; + * uint64_t oid_object_id; + * }; + */ +struct pnfs_osd_objid { + struct nfs4_deviceid oid_device_id; + u64 oid_partition_id; + u64 oid_object_id; +}; + +/* For printout. I use: + * kprint("dev(%llx:%llx)", _DEVID_LO(pointer), _DEVID_HI(pointer)); + * BE style + */ +#define _DEVID_LO(oid_device_id) \ + (unsigned long long)be64_to_cpup((__be64 *)(oid_device_id)->data) + +#define _DEVID_HI(oid_device_id) \ + (unsigned long long)be64_to_cpup(((__be64 *)(oid_device_id)->data) + 1) + +static inline int +pnfs_osd_objid_xdr_sz(void) +{ + return (NFS4_DEVICEID4_SIZE / 4) + 2 + 2; +} + +enum pnfs_osd_version { + PNFS_OSD_MISSING = 0, + PNFS_OSD_VERSION_1 = 1, + PNFS_OSD_VERSION_2 = 2 +}; + +struct pnfs_osd_opaque_cred { + u32 cred_len; + void *cred; +}; + +enum pnfs_osd_cap_key_sec { + PNFS_OSD_CAP_KEY_SEC_NONE = 0, + PNFS_OSD_CAP_KEY_SEC_SSV = 1, +}; + +/* struct pnfs_osd_object_cred4 { + * pnfs_osd_objid4 oc_object_id; + * pnfs_osd_version4 oc_osd_version; + * pnfs_osd_cap_key_sec4 oc_cap_key_sec; + * opaque oc_capability_key<>; + * opaque oc_capability<>; + * }; + */ +struct pnfs_osd_object_cred { + struct pnfs_osd_objid oc_object_id; + u32 oc_osd_version; + u32 oc_cap_key_sec; + struct pnfs_osd_opaque_cred oc_cap_key; + struct pnfs_osd_opaque_cred oc_cap; +}; + +/* struct pnfs_osd_layout4 { + * pnfs_osd_data_map4 olo_map; + * uint32_t olo_comps_index; + * pnfs_osd_object_cred4 olo_components<>; + * }; + */ +struct pnfs_osd_layout { + struct pnfs_osd_data_map olo_map; + u32 olo_comps_index; + u32 olo_num_comps; + struct pnfs_osd_object_cred *olo_comps; +}; + +/* Device Address */ +enum pnfs_osd_targetid_type { + OBJ_TARGET_ANON = 1, + OBJ_TARGET_SCSI_NAME = 2, + OBJ_TARGET_SCSI_DEVICE_ID = 3, +}; + +/* union pnfs_osd_targetid4 switch (pnfs_osd_targetid_type4 oti_type) { + * case OBJ_TARGET_SCSI_NAME: + * string oti_scsi_name<>; + * + * case OBJ_TARGET_SCSI_DEVICE_ID: + * opaque oti_scsi_device_id<>; + * + * default: + * void; + * }; + * + * union pnfs_osd_targetaddr4 switch (bool ota_available) { + * case TRUE: + * netaddr4 ota_netaddr; + * case FALSE: + * void; + * }; + * + * struct pnfs_osd_deviceaddr4 { + * pnfs_osd_targetid4 oda_targetid; + * pnfs_osd_targetaddr4 oda_targetaddr; + * uint64_t oda_lun; + * opaque oda_systemid<>; + * pnfs_osd_object_cred4 oda_root_obj_cred; + * opaque oda_osdname<>; + * }; + */ +struct pnfs_osd_targetid { + u32 oti_type; + struct nfs4_string oti_scsi_device_id; +}; + +enum { PNFS_OSD_TARGETID_MAX = 1 + PNFS_OSD_OSDNAME_MAXSIZE / 4 }; + +/* struct netaddr4 { + * // see struct rpcb in RFC1833 + * string r_netid<>; // network id + * string r_addr<>; // universal address + * }; + */ +struct pnfs_osd_net_addr { + struct nfs4_string r_netid; + struct nfs4_string r_addr; +}; + +struct pnfs_osd_targetaddr { + u32 ota_available; + struct pnfs_osd_net_addr ota_netaddr; +}; + +enum { + NETWORK_ID_MAX = 16 / 4, + UNIVERSAL_ADDRESS_MAX = 64 / 4, + PNFS_OSD_TARGETADDR_MAX = 3 + NETWORK_ID_MAX + UNIVERSAL_ADDRESS_MAX, +}; + +struct pnfs_osd_deviceaddr { + struct pnfs_osd_targetid oda_targetid; + struct pnfs_osd_targetaddr oda_targetaddr; + u8 oda_lun[8]; + struct nfs4_string oda_systemid; + struct pnfs_osd_object_cred oda_root_obj_cred; + struct nfs4_string oda_osdname; +}; + +enum { + ODA_OSDNAME_MAX = PNFS_OSD_OSDNAME_MAXSIZE / 4, + PNFS_OSD_DEVICEADDR_MAX = + PNFS_OSD_TARGETID_MAX + PNFS_OSD_TARGETADDR_MAX + + 2 /*oda_lun*/ + + 1 + OSD_SYSTEMID_LEN + + 1 + ODA_OSDNAME_MAX, +}; + +/* LAYOUTCOMMIT: layoutupdate */ + +/* union pnfs_osd_deltaspaceused4 switch (bool dsu_valid) { + * case TRUE: + * int64_t dsu_delta; + * case FALSE: + * void; + * }; + * + * struct pnfs_osd_layoutupdate4 { + * pnfs_osd_deltaspaceused4 olu_delta_space_used; + * bool olu_ioerr_flag; + * }; + */ +struct pnfs_osd_layoutupdate { + u32 dsu_valid; + s64 dsu_delta; + u32 olu_ioerr_flag; +}; + +/* LAYOUTRETURN: I/O Rrror Report */ + +enum pnfs_osd_errno { + PNFS_OSD_ERR_EIO = 1, + PNFS_OSD_ERR_NOT_FOUND = 2, + PNFS_OSD_ERR_NO_SPACE = 3, + PNFS_OSD_ERR_BAD_CRED = 4, + PNFS_OSD_ERR_NO_ACCESS = 5, + PNFS_OSD_ERR_UNREACHABLE = 6, + PNFS_OSD_ERR_RESOURCE = 7 +}; + +/* struct pnfs_osd_ioerr4 { + * pnfs_osd_objid4 oer_component; + * length4 oer_comp_offset; + * length4 oer_comp_length; + * bool oer_iswrite; + * pnfs_osd_errno4 oer_errno; + * }; + */ +struct pnfs_osd_ioerr { + struct pnfs_osd_objid oer_component; + u64 oer_comp_offset; + u64 oer_comp_length; + u32 oer_iswrite; + u32 oer_errno; +}; + +/* OSD XDR API */ +/* Layout helpers */ +/* Layout decoding is done in two parts: + * 1. First Call pnfs_osd_xdr_decode_layout_map to read in only the header part + * of the layout. @iter members need not be initialized. + * Returned: + * @layout members are set. (@layout->olo_comps set to NULL). + * + * Zero on success, or negative error if passed xdr is broken. + * + * 2. 2nd Call pnfs_osd_xdr_decode_layout_comp() in a loop until it returns + * false, to decode the next component. + * Returned: + * true if there is more to decode or false if we are done or error. + * + * Example: + * struct pnfs_osd_xdr_decode_layout_iter iter; + * struct pnfs_osd_layout layout; + * struct pnfs_osd_object_cred comp; + * int status; + * + * status = pnfs_osd_xdr_decode_layout_map(&layout, &iter, xdr); + * if (unlikely(status)) + * goto err; + * while(pnfs_osd_xdr_decode_layout_comp(&comp, &iter, xdr, &status)) { + * // All of @comp strings point to inside the xdr_buffer + * // or scrach buffer. Copy them out to user memory eg. + * copy_single_comp(dest_comp++, &comp); + * } + * if (unlikely(status)) + * goto err; + */ + +struct pnfs_osd_xdr_decode_layout_iter { + unsigned total_comps; + unsigned decoded_comps; +}; + +extern int pnfs_osd_xdr_decode_layout_map(struct pnfs_osd_layout *layout, + struct pnfs_osd_xdr_decode_layout_iter *iter, struct xdr_stream *xdr); + +extern bool pnfs_osd_xdr_decode_layout_comp(struct pnfs_osd_object_cred *comp, + struct pnfs_osd_xdr_decode_layout_iter *iter, struct xdr_stream *xdr, + int *err); + +/* Device Info helpers */ + +/* Note: All strings inside @deviceaddr point to space inside @p. + * @p should stay valid while @deviceaddr is in use. + */ +extern void pnfs_osd_xdr_decode_deviceaddr( + struct pnfs_osd_deviceaddr *deviceaddr, __be32 *p); + +/* layoutupdate (layout_commit) xdr helpers */ +extern int +pnfs_osd_xdr_encode_layoutupdate(struct xdr_stream *xdr, + struct pnfs_osd_layoutupdate *lou); + +/* osd_ioerror encoding/decoding (layout_return) */ +/* Client */ +extern __be32 *pnfs_osd_xdr_ioerr_reserve_space(struct xdr_stream *xdr); +extern void pnfs_osd_xdr_encode_ioerr(__be32 *p, struct pnfs_osd_ioerr *ioerr); + +#endif /* __PNFS_OSD_XDR_H__ */ diff --git a/include/linux/sched.h b/include/linux/sched.h index bcddd013810..2a8621c4be1 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -2194,7 +2194,6 @@ static inline void mmdrop(struct mm_struct * mm) if (unlikely(atomic_dec_and_test(&mm->mm_count))) __mmdrop(mm); } -extern int mm_init_cpumask(struct mm_struct *mm, struct mm_struct *oldmm); /* mmput gets rid of the mappings and all user-space */ extern void mmput(struct mm_struct *); diff --git a/include/linux/sunrpc/msg_prot.h b/include/linux/sunrpc/msg_prot.h index 77e62488339..c68a147939a 100644 --- a/include/linux/sunrpc/msg_prot.h +++ b/include/linux/sunrpc/msg_prot.h @@ -145,6 +145,7 @@ typedef __be32 rpc_fraghdr; #define RPCBIND_NETID_TCP "tcp" #define RPCBIND_NETID_UDP6 "udp6" #define RPCBIND_NETID_TCP6 "tcp6" +#define RPCBIND_NETID_LOCAL "local" /* * Note that RFC 1833 does not put any size restrictions on the diff --git a/include/linux/sunrpc/svcsock.h b/include/linux/sunrpc/svcsock.h index 04dba23c59f..85c50b40759 100644 --- a/include/linux/sunrpc/svcsock.h +++ b/include/linux/sunrpc/svcsock.h @@ -28,6 +28,7 @@ struct svc_sock { /* private TCP part */ u32 sk_reclen; /* length of record */ u32 sk_tcplen; /* current read length */ + struct page * sk_pages[RPCSVC_MAXPAGES]; /* received data */ }; /* diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h index fc84b7a19ca..a20970ef9e4 100644 --- a/include/linux/sunrpc/xdr.h +++ b/include/linux/sunrpc/xdr.h @@ -216,6 +216,8 @@ extern __be32 *xdr_reserve_space(struct xdr_stream *xdr, size_t nbytes); extern void xdr_write_pages(struct xdr_stream *xdr, struct page **pages, unsigned int base, unsigned int len); extern void xdr_init_decode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p); +extern void xdr_init_decode_pages(struct xdr_stream *xdr, struct xdr_buf *buf, + struct page **pages, unsigned int len); extern void xdr_set_scratch_buffer(struct xdr_stream *xdr, void *buf, size_t buflen); extern __be32 *xdr_inline_decode(struct xdr_stream *xdr, size_t nbytes); extern void xdr_read_pages(struct xdr_stream *xdr, unsigned int len); diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index a0f998c07c6..81cce3b3ee6 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -141,7 +141,8 @@ enum xprt_transports { XPRT_TRANSPORT_UDP = IPPROTO_UDP, XPRT_TRANSPORT_TCP = IPPROTO_TCP, XPRT_TRANSPORT_BC_TCP = IPPROTO_TCP | XPRT_TRANSPORT_BC, - XPRT_TRANSPORT_RDMA = 256 + XPRT_TRANSPORT_RDMA = 256, + XPRT_TRANSPORT_LOCAL = 257, }; struct rpc_xprt { diff --git a/init/main.c b/init/main.c index d2f1e086bf3..cafba67c13b 100644 --- a/init/main.c +++ b/init/main.c @@ -487,6 +487,7 @@ asmlinkage void __init start_kernel(void) printk(KERN_NOTICE "%s", linux_banner); setup_arch(&command_line); mm_init_owner(&init_mm, &init_task); + mm_init_cpumask(&init_mm); setup_command_line(command_line); setup_nr_cpu_ids(); setup_per_cpu_areas(); @@ -510,7 +511,6 @@ asmlinkage void __init start_kernel(void) sort_main_extable(); trap_init(); mm_init(); - BUG_ON(mm_init_cpumask(&init_mm, 0)); /* * Set up the scheduler prior starting any interrupts (such as the diff --git a/kernel/fork.c b/kernel/fork.c index ca406d91671..0276c30401a 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -484,20 +484,6 @@ static void mm_init_aio(struct mm_struct *mm) #endif } -int mm_init_cpumask(struct mm_struct *mm, struct mm_struct *oldmm) -{ -#ifdef CONFIG_CPUMASK_OFFSTACK - if (!alloc_cpumask_var(&mm->cpu_vm_mask_var, GFP_KERNEL)) - return -ENOMEM; - - if (oldmm) - cpumask_copy(mm_cpumask(mm), mm_cpumask(oldmm)); - else - memset(mm_cpumask(mm), 0, cpumask_size()); -#endif - return 0; -} - static struct mm_struct * mm_init(struct mm_struct * mm, struct task_struct *p) { atomic_set(&mm->mm_users, 1); @@ -538,17 +524,8 @@ struct mm_struct * mm_alloc(void) return NULL; memset(mm, 0, sizeof(*mm)); - mm = mm_init(mm, current); - if (!mm) - return NULL; - - if (mm_init_cpumask(mm, NULL)) { - mm_free_pgd(mm); - free_mm(mm); - return NULL; - } - - return mm; + mm_init_cpumask(mm); + return mm_init(mm, current); } /* @@ -559,7 +536,6 @@ struct mm_struct * mm_alloc(void) void __mmdrop(struct mm_struct *mm) { BUG_ON(mm == &init_mm); - free_cpumask_var(mm->cpu_vm_mask_var); mm_free_pgd(mm); destroy_context(mm); mmu_notifier_mm_destroy(mm); @@ -753,6 +729,7 @@ struct mm_struct *dup_mm(struct task_struct *tsk) goto fail_nomem; memcpy(mm, oldmm, sizeof(*mm)); + mm_init_cpumask(mm); /* Initializing for Swap token stuff */ mm->token_priority = 0; @@ -765,9 +742,6 @@ struct mm_struct *dup_mm(struct task_struct *tsk) if (!mm_init(mm, tsk)) goto fail_nomem; - if (mm_init_cpumask(mm, oldmm)) - goto fail_nocpumask; - if (init_new_context(tsk, mm)) goto fail_nocontext; @@ -794,9 +768,6 @@ fail_nomem: return NULL; fail_nocontext: - free_cpumask_var(mm->cpu_vm_mask_var); - -fail_nocpumask: /* * If init_new_context() failed, we cannot use mmput() to free the mm * because it calls destroy_context() @@ -1591,6 +1562,13 @@ void __init proc_caches_init(void) fs_cachep = kmem_cache_create("fs_cache", sizeof(struct fs_struct), 0, SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_NOTRACK, NULL); + /* + * FIXME! The "sizeof(struct mm_struct)" currently includes the + * whole struct cpumask for the OFFSTACK case. We could change + * this to *only* allocate as much of it as required by the + * maximum number of CPU's we can ever have. The cpumask_allocation + * is at the end of the structure, exactly for that reason. + */ mm_cachep = kmem_cache_create("mm_struct", sizeof(struct mm_struct), ARCH_MIN_MMSTRUCT_ALIGN, SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_NOTRACK, NULL); diff --git a/kernel/pm_qos_params.c b/kernel/pm_qos_params.c index fd8d1e035df..6824ca7d4d0 100644 --- a/kernel/pm_qos_params.c +++ b/kernel/pm_qos_params.c @@ -54,11 +54,17 @@ enum pm_qos_type { PM_QOS_MIN /* return the smallest value */ }; +/* + * Note: The lockless read path depends on the CPU accessing + * target_value atomically. Atomic access is only guaranteed on all CPU + * types linux supports for 32 bit quantites + */ struct pm_qos_object { struct plist_head requests; struct blocking_notifier_head *notifiers; struct miscdevice pm_qos_power_miscdev; char *name; + s32 target_value; /* Do not change to 64 bit */ s32 default_value; enum pm_qos_type type; }; @@ -71,7 +77,8 @@ static struct pm_qos_object cpu_dma_pm_qos = { .requests = PLIST_HEAD_INIT(cpu_dma_pm_qos.requests, pm_qos_lock), .notifiers = &cpu_dma_lat_notifier, .name = "cpu_dma_latency", - .default_value = 2000 * USEC_PER_SEC, + .target_value = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE, + .default_value = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE, .type = PM_QOS_MIN, }; @@ -80,7 +87,8 @@ static struct pm_qos_object network_lat_pm_qos = { .requests = PLIST_HEAD_INIT(network_lat_pm_qos.requests, pm_qos_lock), .notifiers = &network_lat_notifier, .name = "network_latency", - .default_value = 2000 * USEC_PER_SEC, + .target_value = PM_QOS_NETWORK_LAT_DEFAULT_VALUE, + .default_value = PM_QOS_NETWORK_LAT_DEFAULT_VALUE, .type = PM_QOS_MIN }; @@ -90,7 +98,8 @@ static struct pm_qos_object network_throughput_pm_qos = { .requests = PLIST_HEAD_INIT(network_throughput_pm_qos.requests, pm_qos_lock), .notifiers = &network_throughput_notifier, .name = "network_throughput", - .default_value = 0, + .target_value = PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE, + .default_value = PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE, .type = PM_QOS_MAX, }; @@ -136,6 +145,16 @@ static inline int pm_qos_get_value(struct pm_qos_object *o) } } +static inline s32 pm_qos_read_value(struct pm_qos_object *o) +{ + return o->target_value; +} + +static inline void pm_qos_set_value(struct pm_qos_object *o, s32 value) +{ + o->target_value = value; +} + static void update_target(struct pm_qos_object *o, struct plist_node *node, int del, int value) { @@ -160,6 +179,7 @@ static void update_target(struct pm_qos_object *o, struct plist_node *node, plist_add(node, &o->requests); } curr_value = pm_qos_get_value(o); + pm_qos_set_value(o, curr_value); spin_unlock_irqrestore(&pm_qos_lock, flags); if (prev_value != curr_value) @@ -194,18 +214,11 @@ static int find_pm_qos_object_by_minor(int minor) * pm_qos_request - returns current system wide qos expectation * @pm_qos_class: identification of which qos value is requested * - * This function returns the current target value in an atomic manner. + * This function returns the current target value. */ int pm_qos_request(int pm_qos_class) { - unsigned long flags; - int value; - - spin_lock_irqsave(&pm_qos_lock, flags); - value = pm_qos_get_value(pm_qos_array[pm_qos_class]); - spin_unlock_irqrestore(&pm_qos_lock, flags); - - return value; + return pm_qos_read_value(pm_qos_array[pm_qos_class]); } EXPORT_SYMBOL_GPL(pm_qos_request); diff --git a/mm/rmap.c b/mm/rmap.c index 6bada99cd61..0eb463ea88d 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -352,6 +352,11 @@ void __init anon_vma_init(void) * The page might have been remapped to a different anon_vma or the anon_vma * returned may already be freed (and even reused). * + * In case it was remapped to a different anon_vma, the new anon_vma will be a + * child of the old anon_vma, and the anon_vma lifetime rules will therefore + * ensure that any anon_vma obtained from the page will still be valid for as + * long as we observe page_mapped() [ hence all those page_mapped() tests ]. + * * All users of this function must be very careful when walking the anon_vma * chain and verify that the page in question is indeed mapped in it * [ something equivalent to page_mapped_in_vma() ]. @@ -421,7 +426,7 @@ struct anon_vma *page_lock_anon_vma(struct page *page) /* * If the page is still mapped, then this anon_vma is still * its anon_vma, and holding the mutex ensures that it will - * not go away, see __put_anon_vma(). + * not go away, see anon_vma_free(). */ if (!page_mapped(page)) { mutex_unlock(&root_anon_vma->mutex); diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 8d83f9d4871..b84d7395535 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -13,10 +13,6 @@ * and need to be refreshed, or when a packet was damaged in transit. * This may be have to be moved to the VFS layer. * - * NB: BSD uses a more intelligent approach to guessing when a request - * or reply has been lost by keeping the RTO estimate for each procedure. - * We currently make do with a constant timeout value. - * * Copyright (C) 1992,1993 Rick Sladkey <jrs@world.std.com> * Copyright (C) 1995,1996 Olaf Kirch <okir@monad.swb.de> */ @@ -32,7 +28,9 @@ #include <linux/slab.h> #include <linux/utsname.h> #include <linux/workqueue.h> +#include <linux/in.h> #include <linux/in6.h> +#include <linux/un.h> #include <linux/sunrpc/clnt.h> #include <linux/sunrpc/rpc_pipe_fs.h> @@ -298,22 +296,27 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args) * up a string representation of the passed-in address. */ if (args->servername == NULL) { + struct sockaddr_un *sun = + (struct sockaddr_un *)args->address; + struct sockaddr_in *sin = + (struct sockaddr_in *)args->address; + struct sockaddr_in6 *sin6 = + (struct sockaddr_in6 *)args->address; + servername[0] = '\0'; switch (args->address->sa_family) { - case AF_INET: { - struct sockaddr_in *sin = - (struct sockaddr_in *)args->address; + case AF_LOCAL: + snprintf(servername, sizeof(servername), "%s", + sun->sun_path); + break; + case AF_INET: snprintf(servername, sizeof(servername), "%pI4", &sin->sin_addr.s_addr); break; - } - case AF_INET6: { - struct sockaddr_in6 *sin = - (struct sockaddr_in6 *)args->address; + case AF_INET6: snprintf(servername, sizeof(servername), "%pI6", - &sin->sin6_addr); + &sin6->sin6_addr); break; - } default: /* caller wants default server name, but * address family isn't recognized. */ diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c index c652e4cc9fe..9a80a922c52 100644 --- a/net/sunrpc/rpcb_clnt.c +++ b/net/sunrpc/rpcb_clnt.c @@ -16,6 +16,7 @@ #include <linux/types.h> #include <linux/socket.h> +#include <linux/un.h> #include <linux/in.h> #include <linux/in6.h> #include <linux/kernel.h> @@ -32,6 +33,8 @@ # define RPCDBG_FACILITY RPCDBG_BIND #endif +#define RPCBIND_SOCK_PATHNAME "/var/run/rpcbind.sock" + #define RPCBIND_PROGRAM (100000u) #define RPCBIND_PORT (111u) @@ -158,20 +161,69 @@ static void rpcb_map_release(void *data) kfree(map); } -static const struct sockaddr_in rpcb_inaddr_loopback = { - .sin_family = AF_INET, - .sin_addr.s_addr = htonl(INADDR_LOOPBACK), - .sin_port = htons(RPCBIND_PORT), -}; +/* + * Returns zero on success, otherwise a negative errno value + * is returned. + */ +static int rpcb_create_local_unix(void) +{ + static const struct sockaddr_un rpcb_localaddr_rpcbind = { + .sun_family = AF_LOCAL, + .sun_path = RPCBIND_SOCK_PATHNAME, + }; + struct rpc_create_args args = { + .net = &init_net, + .protocol = XPRT_TRANSPORT_LOCAL, + .address = (struct sockaddr *)&rpcb_localaddr_rpcbind, + .addrsize = sizeof(rpcb_localaddr_rpcbind), + .servername = "localhost", + .program = &rpcb_program, + .version = RPCBVERS_2, + .authflavor = RPC_AUTH_NULL, + }; + struct rpc_clnt *clnt, *clnt4; + int result = 0; + + /* + * Because we requested an RPC PING at transport creation time, + * this works only if the user space portmapper is rpcbind, and + * it's listening on AF_LOCAL on the named socket. + */ + clnt = rpc_create(&args); + if (IS_ERR(clnt)) { + dprintk("RPC: failed to create AF_LOCAL rpcbind " + "client (errno %ld).\n", PTR_ERR(clnt)); + result = -PTR_ERR(clnt); + goto out; + } + + clnt4 = rpc_bind_new_program(clnt, &rpcb_program, RPCBVERS_4); + if (IS_ERR(clnt4)) { + dprintk("RPC: failed to bind second program to " + "rpcbind v4 client (errno %ld).\n", + PTR_ERR(clnt4)); + clnt4 = NULL; + } + + /* Protected by rpcb_create_local_mutex */ + rpcb_local_clnt = clnt; + rpcb_local_clnt4 = clnt4; -static DEFINE_MUTEX(rpcb_create_local_mutex); +out: + return result; +} /* * Returns zero on success, otherwise a negative errno value * is returned. */ -static int rpcb_create_local(void) +static int rpcb_create_local_net(void) { + static const struct sockaddr_in rpcb_inaddr_loopback = { + .sin_family = AF_INET, + .sin_addr.s_addr = htonl(INADDR_LOOPBACK), + .sin_port = htons(RPCBIND_PORT), + }; struct rpc_create_args args = { .net = &init_net, .protocol = XPRT_TRANSPORT_TCP, @@ -186,13 +238,6 @@ static int rpcb_create_local(void) struct rpc_clnt *clnt, *clnt4; int result = 0; - if (rpcb_local_clnt) - return result; - - mutex_lock(&rpcb_create_local_mutex); - if (rpcb_local_clnt) - goto out; - clnt = rpc_create(&args); if (IS_ERR(clnt)) { dprintk("RPC: failed to create local rpcbind " @@ -214,10 +259,34 @@ static int rpcb_create_local(void) clnt4 = NULL; } + /* Protected by rpcb_create_local_mutex */ rpcb_local_clnt = clnt; rpcb_local_clnt4 = clnt4; out: + return result; +} + +/* + * Returns zero on success, otherwise a negative errno value + * is returned. + */ +static int rpcb_create_local(void) +{ + static DEFINE_MUTEX(rpcb_create_local_mutex); + int result = 0; + + if (rpcb_local_clnt) + return result; + + mutex_lock(&rpcb_create_local_mutex); + if (rpcb_local_clnt) + goto out; + + if (rpcb_create_local_unix() != 0) + result = rpcb_create_local_net(); + +out: mutex_unlock(&rpcb_create_local_mutex); return result; } diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c index 08e05a8ce02..2b90292e950 100644 --- a/net/sunrpc/svc.c +++ b/net/sunrpc/svc.c @@ -942,6 +942,8 @@ static void svc_unregister(const struct svc_serv *serv) if (progp->pg_vers[i]->vs_hidden) continue; + dprintk("svc: attempting to unregister %sv%u\n", + progp->pg_name, i); __svc_unregister(progp->pg_prog, i, progp->pg_name); } } diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index b7d435c3f19..af04f779ce9 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -387,6 +387,33 @@ static int svc_recvfrom(struct svc_rqst *rqstp, struct kvec *iov, int nr, return len; } +static int svc_partial_recvfrom(struct svc_rqst *rqstp, + struct kvec *iov, int nr, + int buflen, unsigned int base) +{ + size_t save_iovlen; + void __user *save_iovbase; + unsigned int i; + int ret; + + if (base == 0) + return svc_recvfrom(rqstp, iov, nr, buflen); + + for (i = 0; i < nr; i++) { + if (iov[i].iov_len > base) + break; + base -= iov[i].iov_len; + } + save_iovlen = iov[i].iov_len; + save_iovbase = iov[i].iov_base; + iov[i].iov_len -= base; + iov[i].iov_base += base; + ret = svc_recvfrom(rqstp, &iov[i], nr - i, buflen); + iov[i].iov_len = save_iovlen; + iov[i].iov_base = save_iovbase; + return ret; +} + /* * Set socket snd and rcv buffer lengths */ @@ -409,7 +436,6 @@ static void svc_sock_setbufsize(struct socket *sock, unsigned int snd, lock_sock(sock->sk); sock->sk->sk_sndbuf = snd * 2; sock->sk->sk_rcvbuf = rcv * 2; - sock->sk->sk_userlocks |= SOCK_SNDBUF_LOCK|SOCK_RCVBUF_LOCK; sock->sk->sk_write_space(sock->sk); release_sock(sock->sk); #endif @@ -884,6 +910,56 @@ failed: return NULL; } +static unsigned int svc_tcp_restore_pages(struct svc_sock *svsk, struct svc_rqst *rqstp) +{ + unsigned int i, len, npages; + + if (svsk->sk_tcplen <= sizeof(rpc_fraghdr)) + return 0; + len = svsk->sk_tcplen - sizeof(rpc_fraghdr); + npages = (len + PAGE_SIZE - 1) >> PAGE_SHIFT; + for (i = 0; i < npages; i++) { + if (rqstp->rq_pages[i] != NULL) + put_page(rqstp->rq_pages[i]); + BUG_ON(svsk->sk_pages[i] == NULL); + rqstp->rq_pages[i] = svsk->sk_pages[i]; + svsk->sk_pages[i] = NULL; + } + rqstp->rq_arg.head[0].iov_base = page_address(rqstp->rq_pages[0]); + return len; +} + +static void svc_tcp_save_pages(struct svc_sock *svsk, struct svc_rqst *rqstp) +{ + unsigned int i, len, npages; + + if (svsk->sk_tcplen <= sizeof(rpc_fraghdr)) + return; + len = svsk->sk_tcplen - sizeof(rpc_fraghdr); + npages = (len + PAGE_SIZE - 1) >> PAGE_SHIFT; + for (i = 0; i < npages; i++) { + svsk->sk_pages[i] = rqstp->rq_pages[i]; + rqstp->rq_pages[i] = NULL; + } +} + +static void svc_tcp_clear_pages(struct svc_sock *svsk) +{ + unsigned int i, len, npages; + + if (svsk->sk_tcplen <= sizeof(rpc_fraghdr)) + goto out; + len = svsk->sk_tcplen - sizeof(rpc_fraghdr); + npages = (len + PAGE_SIZE - 1) >> PAGE_SHIFT; + for (i = 0; i < npages; i++) { + BUG_ON(svsk->sk_pages[i] == NULL); + put_page(svsk->sk_pages[i]); + svsk->sk_pages[i] = NULL; + } +out: + svsk->sk_tcplen = 0; +} + /* * Receive data. * If we haven't gotten the record length yet, get the next four bytes. @@ -893,31 +969,15 @@ failed: static int svc_tcp_recv_record(struct svc_sock *svsk, struct svc_rqst *rqstp) { struct svc_serv *serv = svsk->sk_xprt.xpt_server; + unsigned int want; int len; - if (test_and_clear_bit(XPT_CHNGBUF, &svsk->sk_xprt.xpt_flags)) - /* sndbuf needs to have room for one request - * per thread, otherwise we can stall even when the - * network isn't a bottleneck. - * - * We count all threads rather than threads in a - * particular pool, which provides an upper bound - * on the number of threads which will access the socket. - * - * rcvbuf just needs to be able to hold a few requests. - * Normally they will be removed from the queue - * as soon a a complete request arrives. - */ - svc_sock_setbufsize(svsk->sk_sock, - (serv->sv_nrthreads+3) * serv->sv_max_mesg, - 3 * serv->sv_max_mesg); - clear_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags); if (svsk->sk_tcplen < sizeof(rpc_fraghdr)) { - int want = sizeof(rpc_fraghdr) - svsk->sk_tcplen; struct kvec iov; + want = sizeof(rpc_fraghdr) - svsk->sk_tcplen; iov.iov_base = ((char *) &svsk->sk_reclen) + svsk->sk_tcplen; iov.iov_len = want; if ((len = svc_recvfrom(rqstp, &iov, 1, want)) < 0) @@ -927,7 +987,7 @@ static int svc_tcp_recv_record(struct svc_sock *svsk, struct svc_rqst *rqstp) if (len < want) { dprintk("svc: short recvfrom while reading record " "length (%d of %d)\n", len, want); - goto err_again; /* record header not complete */ + return -EAGAIN; } svsk->sk_reclen = ntohl(svsk->sk_reclen); @@ -954,83 +1014,75 @@ static int svc_tcp_recv_record(struct svc_sock *svsk, struct svc_rqst *rqstp) } } - /* Check whether enough data is available */ - len = svc_recv_available(svsk); - if (len < 0) - goto error; + if (svsk->sk_reclen < 8) + goto err_delete; /* client is nuts. */ - if (len < svsk->sk_reclen) { - dprintk("svc: incomplete TCP record (%d of %d)\n", - len, svsk->sk_reclen); - goto err_again; /* record not complete */ - } len = svsk->sk_reclen; - set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags); return len; - error: - if (len == -EAGAIN) - dprintk("RPC: TCP recv_record got EAGAIN\n"); +error: + dprintk("RPC: TCP recv_record got %d\n", len); return len; - err_delete: +err_delete: set_bit(XPT_CLOSE, &svsk->sk_xprt.xpt_flags); - err_again: return -EAGAIN; } -static int svc_process_calldir(struct svc_sock *svsk, struct svc_rqst *rqstp, - struct rpc_rqst **reqpp, struct kvec *vec) +static int receive_cb_reply(struct svc_sock *svsk, struct svc_rqst *rqstp) { + struct rpc_xprt *bc_xprt = svsk->sk_xprt.xpt_bc_xprt; struct rpc_rqst *req = NULL; - u32 *p; - u32 xid; - u32 calldir; - int len; - - len = svc_recvfrom(rqstp, vec, 1, 8); - if (len < 0) - goto error; + struct kvec *src, *dst; + __be32 *p = (__be32 *)rqstp->rq_arg.head[0].iov_base; + __be32 xid; + __be32 calldir; - p = (u32 *)rqstp->rq_arg.head[0].iov_base; xid = *p++; calldir = *p; - if (calldir == 0) { - /* REQUEST is the most common case */ - vec[0] = rqstp->rq_arg.head[0]; - } else { - /* REPLY */ - struct rpc_xprt *bc_xprt = svsk->sk_xprt.xpt_bc_xprt; - - if (bc_xprt) - req = xprt_lookup_rqst(bc_xprt, xid); - - if (!req) { - printk(KERN_NOTICE - "%s: Got unrecognized reply: " - "calldir 0x%x xpt_bc_xprt %p xid %08x\n", - __func__, ntohl(calldir), - bc_xprt, xid); - vec[0] = rqstp->rq_arg.head[0]; - goto out; - } + if (bc_xprt) + req = xprt_lookup_rqst(bc_xprt, xid); - memcpy(&req->rq_private_buf, &req->rq_rcv_buf, - sizeof(struct xdr_buf)); - /* copy the xid and call direction */ - memcpy(req->rq_private_buf.head[0].iov_base, - rqstp->rq_arg.head[0].iov_base, 8); - vec[0] = req->rq_private_buf.head[0]; + if (!req) { + printk(KERN_NOTICE + "%s: Got unrecognized reply: " + "calldir 0x%x xpt_bc_xprt %p xid %08x\n", + __func__, ntohl(calldir), + bc_xprt, xid); + return -EAGAIN; } - out: - vec[0].iov_base += 8; - vec[0].iov_len -= 8; - len = svsk->sk_reclen - 8; - error: - *reqpp = req; - return len; + + memcpy(&req->rq_private_buf, &req->rq_rcv_buf, sizeof(struct xdr_buf)); + /* + * XXX!: cheating for now! Only copying HEAD. + * But we know this is good enough for now (in fact, for any + * callback reply in the forseeable future). + */ + dst = &req->rq_private_buf.head[0]; + src = &rqstp->rq_arg.head[0]; + if (dst->iov_len < src->iov_len) + return -EAGAIN; /* whatever; just giving up. */ + memcpy(dst->iov_base, src->iov_base, src->iov_len); + xprt_complete_rqst(req->rq_task, svsk->sk_reclen); + rqstp->rq_arg.len = 0; + return 0; } +static int copy_pages_to_kvecs(struct kvec *vec, struct page **pages, int len) +{ + int i = 0; + int t = 0; + + while (t < len) { + vec[i].iov_base = page_address(pages[i]); + vec[i].iov_len = PAGE_SIZE; + i++; + t += PAGE_SIZE; + } + return i; +} + + /* * Receive data from a TCP socket. */ @@ -1041,8 +1093,10 @@ static int svc_tcp_recvfrom(struct svc_rqst *rqstp) struct svc_serv *serv = svsk->sk_xprt.xpt_server; int len; struct kvec *vec; - int pnum, vlen; - struct rpc_rqst *req = NULL; + unsigned int want, base; + __be32 *p; + __be32 calldir; + int pnum; dprintk("svc: tcp_recv %p data %d conn %d close %d\n", svsk, test_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags), @@ -1053,87 +1107,73 @@ static int svc_tcp_recvfrom(struct svc_rqst *rqstp) if (len < 0) goto error; + base = svc_tcp_restore_pages(svsk, rqstp); + want = svsk->sk_reclen - base; + vec = rqstp->rq_vec; - vec[0] = rqstp->rq_arg.head[0]; - vlen = PAGE_SIZE; - /* - * We have enough data for the whole tcp record. Let's try and read the - * first 8 bytes to get the xid and the call direction. We can use this - * to figure out if this is a call or a reply to a callback. If - * sk_reclen is < 8 (xid and calldir), then this is a malformed packet. - * In that case, don't bother with the calldir and just read the data. - * It will be rejected in svc_process. - */ - if (len >= 8) { - len = svc_process_calldir(svsk, rqstp, &req, vec); - if (len < 0) - goto err_again; - vlen -= 8; - } + pnum = copy_pages_to_kvecs(&vec[0], &rqstp->rq_pages[0], + svsk->sk_reclen); - pnum = 1; - while (vlen < len) { - vec[pnum].iov_base = (req) ? - page_address(req->rq_private_buf.pages[pnum - 1]) : - page_address(rqstp->rq_pages[pnum]); - vec[pnum].iov_len = PAGE_SIZE; - pnum++; - vlen += PAGE_SIZE; - } rqstp->rq_respages = &rqstp->rq_pages[pnum]; /* Now receive data */ - len = svc_recvfrom(rqstp, vec, pnum, len); - if (len < 0) - goto err_again; - - /* - * Account for the 8 bytes we read earlier - */ - len += 8; - - if (req) { - xprt_complete_rqst(req->rq_task, len); - len = 0; - goto out; + len = svc_partial_recvfrom(rqstp, vec, pnum, want, base); + if (len >= 0) + svsk->sk_tcplen += len; + if (len != want) { + if (len < 0 && len != -EAGAIN) + goto err_other; + svc_tcp_save_pages(svsk, rqstp); + dprintk("svc: incomplete TCP record (%d of %d)\n", + svsk->sk_tcplen, svsk->sk_reclen); + goto err_noclose; } - dprintk("svc: TCP complete record (%d bytes)\n", len); - rqstp->rq_arg.len = len; + + rqstp->rq_arg.len = svsk->sk_reclen; rqstp->rq_arg.page_base = 0; - if (len <= rqstp->rq_arg.head[0].iov_len) { - rqstp->rq_arg.head[0].iov_len = len; + if (rqstp->rq_arg.len <= rqstp->rq_arg.head[0].iov_len) { + rqstp->rq_arg.head[0].iov_len = rqstp->rq_arg.len; rqstp->rq_arg.page_len = 0; - } else { - rqstp->rq_arg.page_len = len - rqstp->rq_arg.head[0].iov_len; - } + } else + rqstp->rq_arg.page_len = rqstp->rq_arg.len - rqstp->rq_arg.head[0].iov_len; rqstp->rq_xprt_ctxt = NULL; rqstp->rq_prot = IPPROTO_TCP; -out: + p = (__be32 *)rqstp->rq_arg.head[0].iov_base; + calldir = p[1]; + if (calldir) + len = receive_cb_reply(svsk, rqstp); + /* Reset TCP read info */ svsk->sk_reclen = 0; svsk->sk_tcplen = 0; + /* If we have more data, signal svc_xprt_enqueue() to try again */ + if (svc_recv_available(svsk) > sizeof(rpc_fraghdr)) + set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags); + + if (len < 0) + goto error; svc_xprt_copy_addrs(rqstp, &svsk->sk_xprt); if (serv->sv_stats) serv->sv_stats->nettcpcnt++; - return len; + dprintk("svc: TCP complete record (%d bytes)\n", rqstp->rq_arg.len); + return rqstp->rq_arg.len; -err_again: - if (len == -EAGAIN) { - dprintk("RPC: TCP recvfrom got EAGAIN\n"); - return len; - } error: - if (len != -EAGAIN) { - printk(KERN_NOTICE "%s: recvfrom returned errno %d\n", - svsk->sk_xprt.xpt_server->sv_name, -len); - set_bit(XPT_CLOSE, &svsk->sk_xprt.xpt_flags); - } + if (len != -EAGAIN) + goto err_other; + dprintk("RPC: TCP recvfrom got EAGAIN\n"); return -EAGAIN; +err_other: + printk(KERN_NOTICE "%s: recvfrom returned errno %d\n", + svsk->sk_xprt.xpt_server->sv_name, -len); + set_bit(XPT_CLOSE, &svsk->sk_xprt.xpt_flags); +err_noclose: + return -EAGAIN; /* record not complete */ } /* @@ -1304,18 +1344,10 @@ static void svc_tcp_init(struct svc_sock *svsk, struct svc_serv *serv) svsk->sk_reclen = 0; svsk->sk_tcplen = 0; + memset(&svsk->sk_pages[0], 0, sizeof(svsk->sk_pages)); tcp_sk(sk)->nonagle |= TCP_NAGLE_OFF; - /* initialise setting must have enough space to - * receive and respond to one request. - * svc_tcp_recvfrom will re-adjust if necessary - */ - svc_sock_setbufsize(svsk->sk_sock, - 3 * svsk->sk_xprt.xpt_server->sv_max_mesg, - 3 * svsk->sk_xprt.xpt_server->sv_max_mesg); - - set_bit(XPT_CHNGBUF, &svsk->sk_xprt.xpt_flags); set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags); if (sk->sk_state != TCP_ESTABLISHED) set_bit(XPT_CLOSE, &svsk->sk_xprt.xpt_flags); @@ -1379,8 +1411,14 @@ static struct svc_sock *svc_setup_socket(struct svc_serv *serv, /* Initialize the socket */ if (sock->type == SOCK_DGRAM) svc_udp_init(svsk, serv); - else + else { + /* initialise setting must have enough space to + * receive and respond to one request. + */ + svc_sock_setbufsize(svsk->sk_sock, 4 * serv->sv_max_mesg, + 4 * serv->sv_max_mesg); svc_tcp_init(svsk, serv); + } dprintk("svc: svc_setup_socket created %p (inet %p)\n", svsk, svsk->sk_sk); @@ -1562,8 +1600,10 @@ static void svc_tcp_sock_detach(struct svc_xprt *xprt) svc_sock_detach(xprt); - if (!test_bit(XPT_LISTENER, &xprt->xpt_flags)) + if (!test_bit(XPT_LISTENER, &xprt->xpt_flags)) { + svc_tcp_clear_pages(svsk); kernel_sock_shutdown(svsk->sk_sock, SHUT_RDWR); + } } /* diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c index 679cd674b81..f008c14ad34 100644 --- a/net/sunrpc/xdr.c +++ b/net/sunrpc/xdr.c @@ -638,6 +638,25 @@ void xdr_init_decode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p) } EXPORT_SYMBOL_GPL(xdr_init_decode); +/** + * xdr_init_decode - Initialize an xdr_stream for decoding data. + * @xdr: pointer to xdr_stream struct + * @buf: pointer to XDR buffer from which to decode data + * @pages: list of pages to decode into + * @len: length in bytes of buffer in pages + */ +void xdr_init_decode_pages(struct xdr_stream *xdr, struct xdr_buf *buf, + struct page **pages, unsigned int len) +{ + memset(buf, 0, sizeof(*buf)); + buf->pages = pages; + buf->page_len = len; + buf->buflen = len; + buf->len = len; + xdr_init_decode(xdr, buf, NULL); +} +EXPORT_SYMBOL_GPL(xdr_init_decode_pages); + static __be32 * __xdr_inline_decode(struct xdr_stream *xdr, size_t nbytes) { __be32 *p = xdr->p; diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index bf005d3c65e..72abb735893 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -19,6 +19,7 @@ */ #include <linux/types.h> +#include <linux/string.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/capability.h> @@ -28,6 +29,7 @@ #include <linux/in.h> #include <linux/net.h> #include <linux/mm.h> +#include <linux/un.h> #include <linux/udp.h> #include <linux/tcp.h> #include <linux/sunrpc/clnt.h> @@ -45,6 +47,9 @@ #include <net/tcp.h> #include "sunrpc.h" + +static void xs_close(struct rpc_xprt *xprt); + /* * xprtsock tunables */ @@ -261,6 +266,11 @@ static inline struct sockaddr *xs_addr(struct rpc_xprt *xprt) return (struct sockaddr *) &xprt->addr; } +static inline struct sockaddr_un *xs_addr_un(struct rpc_xprt *xprt) +{ + return (struct sockaddr_un *) &xprt->addr; +} + static inline struct sockaddr_in *xs_addr_in(struct rpc_xprt *xprt) { return (struct sockaddr_in *) &xprt->addr; @@ -276,23 +286,34 @@ static void xs_format_common_peer_addresses(struct rpc_xprt *xprt) struct sockaddr *sap = xs_addr(xprt); struct sockaddr_in6 *sin6; struct sockaddr_in *sin; + struct sockaddr_un *sun; char buf[128]; - (void)rpc_ntop(sap, buf, sizeof(buf)); - xprt->address_strings[RPC_DISPLAY_ADDR] = kstrdup(buf, GFP_KERNEL); - switch (sap->sa_family) { + case AF_LOCAL: + sun = xs_addr_un(xprt); + strlcpy(buf, sun->sun_path, sizeof(buf)); + xprt->address_strings[RPC_DISPLAY_ADDR] = + kstrdup(buf, GFP_KERNEL); + break; case AF_INET: + (void)rpc_ntop(sap, buf, sizeof(buf)); + xprt->address_strings[RPC_DISPLAY_ADDR] = + kstrdup(buf, GFP_KERNEL); sin = xs_addr_in(xprt); snprintf(buf, sizeof(buf), "%08x", ntohl(sin->sin_addr.s_addr)); break; case AF_INET6: + (void)rpc_ntop(sap, buf, sizeof(buf)); + xprt->address_strings[RPC_DISPLAY_ADDR] = + kstrdup(buf, GFP_KERNEL); sin6 = xs_addr_in6(xprt); snprintf(buf, sizeof(buf), "%pi6", &sin6->sin6_addr); break; default: BUG(); } + xprt->address_strings[RPC_DISPLAY_HEX_ADDR] = kstrdup(buf, GFP_KERNEL); } @@ -495,6 +516,70 @@ static int xs_nospace(struct rpc_task *task) return ret; } +/* + * Construct a stream transport record marker in @buf. + */ +static inline void xs_encode_stream_record_marker(struct xdr_buf *buf) +{ + u32 reclen = buf->len - sizeof(rpc_fraghdr); + rpc_fraghdr *base = buf->head[0].iov_base; + *base = cpu_to_be32(RPC_LAST_STREAM_FRAGMENT | reclen); +} + +/** + * xs_local_send_request - write an RPC request to an AF_LOCAL socket + * @task: RPC task that manages the state of an RPC request + * + * Return values: + * 0: The request has been sent + * EAGAIN: The socket was blocked, please call again later to + * complete the request + * ENOTCONN: Caller needs to invoke connect logic then call again + * other: Some other error occured, the request was not sent + */ +static int xs_local_send_request(struct rpc_task *task) +{ + struct rpc_rqst *req = task->tk_rqstp; + struct rpc_xprt *xprt = req->rq_xprt; + struct sock_xprt *transport = + container_of(xprt, struct sock_xprt, xprt); + struct xdr_buf *xdr = &req->rq_snd_buf; + int status; + + xs_encode_stream_record_marker(&req->rq_snd_buf); + + xs_pktdump("packet data:", + req->rq_svec->iov_base, req->rq_svec->iov_len); + + status = xs_sendpages(transport->sock, NULL, 0, + xdr, req->rq_bytes_sent); + dprintk("RPC: %s(%u) = %d\n", + __func__, xdr->len - req->rq_bytes_sent, status); + if (likely(status >= 0)) { + req->rq_bytes_sent += status; + req->rq_xmit_bytes_sent += status; + if (likely(req->rq_bytes_sent >= req->rq_slen)) { + req->rq_bytes_sent = 0; + return 0; + } + status = -EAGAIN; + } + + switch (status) { + case -EAGAIN: + status = xs_nospace(task); + break; + default: + dprintk("RPC: sendmsg returned unrecognized error %d\n", + -status); + case -EPIPE: + xs_close(xprt); + status = -ENOTCONN; + } + + return status; +} + /** * xs_udp_send_request - write an RPC request to a UDP socket * @task: address of RPC task that manages the state of an RPC request @@ -574,13 +659,6 @@ static void xs_tcp_shutdown(struct rpc_xprt *xprt) kernel_sock_shutdown(sock, SHUT_WR); } -static inline void xs_encode_tcp_record_marker(struct xdr_buf *buf) -{ - u32 reclen = buf->len - sizeof(rpc_fraghdr); - rpc_fraghdr *base = buf->head[0].iov_base; - *base = htonl(RPC_LAST_STREAM_FRAGMENT | reclen); -} - /** * xs_tcp_send_request - write an RPC request to a TCP socket * @task: address of RPC task that manages the state of an RPC request @@ -603,7 +681,7 @@ static int xs_tcp_send_request(struct rpc_task *task) struct xdr_buf *xdr = &req->rq_snd_buf; int status; - xs_encode_tcp_record_marker(&req->rq_snd_buf); + xs_encode_stream_record_marker(&req->rq_snd_buf); xs_pktdump("packet data:", req->rq_svec->iov_base, @@ -785,6 +863,88 @@ static inline struct rpc_xprt *xprt_from_sock(struct sock *sk) return (struct rpc_xprt *) sk->sk_user_data; } +static int xs_local_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb) +{ + struct xdr_skb_reader desc = { + .skb = skb, + .offset = sizeof(rpc_fraghdr), + .count = skb->len - sizeof(rpc_fraghdr), + }; + + if (xdr_partial_copy_from_skb(xdr, 0, &desc, xdr_skb_read_bits) < 0) + return -1; + if (desc.count) + return -1; + return 0; +} + +/** + * xs_local_data_ready - "data ready" callback for AF_LOCAL sockets + * @sk: socket with data to read + * @len: how much data to read + * + * Currently this assumes we can read the whole reply in a single gulp. + */ +static void xs_local_data_ready(struct sock *sk, int len) +{ + struct rpc_task *task; + struct rpc_xprt *xprt; + struct rpc_rqst *rovr; + struct sk_buff *skb; + int err, repsize, copied; + u32 _xid; + __be32 *xp; + + read_lock_bh(&sk->sk_callback_lock); + dprintk("RPC: %s...\n", __func__); + xprt = xprt_from_sock(sk); + if (xprt == NULL) + goto out; + + skb = skb_recv_datagram(sk, 0, 1, &err); + if (skb == NULL) + goto out; + + if (xprt->shutdown) + goto dropit; + + repsize = skb->len - sizeof(rpc_fraghdr); + if (repsize < 4) { + dprintk("RPC: impossible RPC reply size %d\n", repsize); + goto dropit; + } + + /* Copy the XID from the skb... */ + xp = skb_header_pointer(skb, sizeof(rpc_fraghdr), sizeof(_xid), &_xid); + if (xp == NULL) + goto dropit; + + /* Look up and lock the request corresponding to the given XID */ + spin_lock(&xprt->transport_lock); + rovr = xprt_lookup_rqst(xprt, *xp); + if (!rovr) + goto out_unlock; + task = rovr->rq_task; + + copied = rovr->rq_private_buf.buflen; + if (copied > repsize) + copied = repsize; + + if (xs_local_copy_to_xdr(&rovr->rq_private_buf, skb)) { + dprintk("RPC: sk_buff copy failed\n"); + goto out_unlock; + } + + xprt_complete_rqst(task, copied); + + out_unlock: + spin_unlock(&xprt->transport_lock); + dropit: + skb_free_datagram(sk, skb); + out: + read_unlock_bh(&sk->sk_callback_lock); +} + /** * xs_udp_data_ready - "data ready" callback for UDP sockets * @sk: socket with data to read @@ -1344,7 +1504,6 @@ static void xs_tcp_state_change(struct sock *sk) case TCP_CLOSE_WAIT: /* The server initiated a shutdown of the socket */ xprt_force_disconnect(xprt); - case TCP_SYN_SENT: xprt->connect_cookie++; case TCP_CLOSING: /* @@ -1571,11 +1730,31 @@ static int xs_bind(struct sock_xprt *transport, struct socket *sock) return err; } +/* + * We don't support autobind on AF_LOCAL sockets + */ +static void xs_local_rpcbind(struct rpc_task *task) +{ + xprt_set_bound(task->tk_xprt); +} + +static void xs_local_set_port(struct rpc_xprt *xprt, unsigned short port) +{ +} #ifdef CONFIG_DEBUG_LOCK_ALLOC static struct lock_class_key xs_key[2]; static struct lock_class_key xs_slock_key[2]; +static inline void xs_reclassify_socketu(struct socket *sock) +{ + struct sock *sk = sock->sk; + + BUG_ON(sock_owned_by_user(sk)); + sock_lock_init_class_and_name(sk, "slock-AF_LOCAL-RPC", + &xs_slock_key[1], "sk_lock-AF_LOCAL-RPC", &xs_key[1]); +} + static inline void xs_reclassify_socket4(struct socket *sock) { struct sock *sk = sock->sk; @@ -1597,6 +1776,9 @@ static inline void xs_reclassify_socket6(struct socket *sock) static inline void xs_reclassify_socket(int family, struct socket *sock) { switch (family) { + case AF_LOCAL: + xs_reclassify_socketu(sock); + break; case AF_INET: xs_reclassify_socket4(sock); break; @@ -1606,6 +1788,10 @@ static inline void xs_reclassify_socket(int family, struct socket *sock) } } #else +static inline void xs_reclassify_socketu(struct socket *sock) +{ +} + static inline void xs_reclassify_socket4(struct socket *sock) { } @@ -1644,6 +1830,94 @@ out: return ERR_PTR(err); } +static int xs_local_finish_connecting(struct rpc_xprt *xprt, + struct socket *sock) +{ + struct sock_xprt *transport = container_of(xprt, struct sock_xprt, + xprt); + + if (!transport->inet) { + struct sock *sk = sock->sk; + + write_lock_bh(&sk->sk_callback_lock); + + xs_save_old_callbacks(transport, sk); + + sk->sk_user_data = xprt; + sk->sk_data_ready = xs_local_data_ready; + sk->sk_write_space = xs_udp_write_space; + sk->sk_error_report = xs_error_report; + sk->sk_allocation = GFP_ATOMIC; + + xprt_clear_connected(xprt); + + /* Reset to new socket */ + transport->sock = sock; + transport->inet = sk; + + write_unlock_bh(&sk->sk_callback_lock); + } + + /* Tell the socket layer to start connecting... */ + xprt->stat.connect_count++; + xprt->stat.connect_start = jiffies; + return kernel_connect(sock, xs_addr(xprt), xprt->addrlen, 0); +} + +/** + * xs_local_setup_socket - create AF_LOCAL socket, connect to a local endpoint + * @xprt: RPC transport to connect + * @transport: socket transport to connect + * @create_sock: function to create a socket of the correct type + * + * Invoked by a work queue tasklet. + */ +static void xs_local_setup_socket(struct work_struct *work) +{ + struct sock_xprt *transport = + container_of(work, struct sock_xprt, connect_worker.work); + struct rpc_xprt *xprt = &transport->xprt; + struct socket *sock; + int status = -EIO; + + if (xprt->shutdown) + goto out; + + clear_bit(XPRT_CONNECTION_ABORT, &xprt->state); + status = __sock_create(xprt->xprt_net, AF_LOCAL, + SOCK_STREAM, 0, &sock, 1); + if (status < 0) { + dprintk("RPC: can't create AF_LOCAL " + "transport socket (%d).\n", -status); + goto out; + } + xs_reclassify_socketu(sock); + + dprintk("RPC: worker connecting xprt %p via AF_LOCAL to %s\n", + xprt, xprt->address_strings[RPC_DISPLAY_ADDR]); + + status = xs_local_finish_connecting(xprt, sock); + switch (status) { + case 0: + dprintk("RPC: xprt %p connected to %s\n", + xprt, xprt->address_strings[RPC_DISPLAY_ADDR]); + xprt_set_connected(xprt); + break; + case -ENOENT: + dprintk("RPC: xprt %p: socket %s does not exist\n", + xprt, xprt->address_strings[RPC_DISPLAY_ADDR]); + break; + default: + printk(KERN_ERR "%s: unhandled error (%d) connecting to %s\n", + __func__, -status, + xprt->address_strings[RPC_DISPLAY_ADDR]); + } + +out: + xprt_clear_connecting(xprt); + xprt_wake_pending_tasks(xprt, status); +} + static void xs_udp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock) { struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt); @@ -1758,6 +2032,7 @@ static void xs_tcp_reuse_connection(struct sock_xprt *transport) static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock) { struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt); + int ret = -ENOTCONN; if (!transport->inet) { struct sock *sk = sock->sk; @@ -1789,12 +2064,22 @@ static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock) } if (!xprt_bound(xprt)) - return -ENOTCONN; + goto out; /* Tell the socket layer to start connecting... */ xprt->stat.connect_count++; xprt->stat.connect_start = jiffies; - return kernel_connect(sock, xs_addr(xprt), xprt->addrlen, O_NONBLOCK); + ret = kernel_connect(sock, xs_addr(xprt), xprt->addrlen, O_NONBLOCK); + switch (ret) { + case 0: + case -EINPROGRESS: + /* SYN_SENT! */ + xprt->connect_cookie++; + if (xprt->reestablish_timeout < XS_TCP_INIT_REEST_TO) + xprt->reestablish_timeout = XS_TCP_INIT_REEST_TO; + } +out: + return ret; } /** @@ -1917,6 +2202,32 @@ static void xs_connect(struct rpc_task *task) } /** + * xs_local_print_stats - display AF_LOCAL socket-specifc stats + * @xprt: rpc_xprt struct containing statistics + * @seq: output file + * + */ +static void xs_local_print_stats(struct rpc_xprt *xprt, struct seq_file *seq) +{ + long idle_time = 0; + + if (xprt_connected(xprt)) + idle_time = (long)(jiffies - xprt->last_used) / HZ; + + seq_printf(seq, "\txprt:\tlocal %lu %lu %lu %ld %lu %lu %lu " + "%llu %llu\n", + xprt->stat.bind_count, + xprt->stat.connect_count, + xprt->stat.connect_time, + idle_time, + xprt->stat.sends, + xprt->stat.recvs, + xprt->stat.bad_xids, + xprt->stat.req_u, + xprt->stat.bklog_u); +} + +/** * xs_udp_print_stats - display UDP socket-specifc stats * @xprt: rpc_xprt struct containing statistics * @seq: output file @@ -2014,10 +2325,7 @@ static int bc_sendto(struct rpc_rqst *req) unsigned long headoff; unsigned long tailoff; - /* - * Set up the rpc header and record marker stuff - */ - xs_encode_tcp_record_marker(xbufp); + xs_encode_stream_record_marker(xbufp); tailoff = (unsigned long)xbufp->tail[0].iov_base & ~PAGE_MASK; headoff = (unsigned long)xbufp->head[0].iov_base & ~PAGE_MASK; @@ -2089,6 +2397,21 @@ static void bc_destroy(struct rpc_xprt *xprt) { } +static struct rpc_xprt_ops xs_local_ops = { + .reserve_xprt = xprt_reserve_xprt, + .release_xprt = xs_tcp_release_xprt, + .rpcbind = xs_local_rpcbind, + .set_port = xs_local_set_port, + .connect = xs_connect, + .buf_alloc = rpc_malloc, + .buf_free = rpc_free, + .send_request = xs_local_send_request, + .set_retrans_timeout = xprt_set_retrans_timeout_def, + .close = xs_close, + .destroy = xs_destroy, + .print_stats = xs_local_print_stats, +}; + static struct rpc_xprt_ops xs_udp_ops = { .set_buffer_size = xs_udp_set_buffer_size, .reserve_xprt = xprt_reserve_xprt_cong, @@ -2150,6 +2473,8 @@ static int xs_init_anyaddr(const int family, struct sockaddr *sap) }; switch (family) { + case AF_LOCAL: + break; case AF_INET: memcpy(sap, &sin, sizeof(sin)); break; @@ -2197,6 +2522,70 @@ static struct rpc_xprt *xs_setup_xprt(struct xprt_create *args, return xprt; } +static const struct rpc_timeout xs_local_default_timeout = { + .to_initval = 10 * HZ, + .to_maxval = 10 * HZ, + .to_retries = 2, +}; + +/** + * xs_setup_local - Set up transport to use an AF_LOCAL socket + * @args: rpc transport creation arguments + * + * AF_LOCAL is a "tpi_cots_ord" transport, just like TCP + */ +static struct rpc_xprt *xs_setup_local(struct xprt_create *args) +{ + struct sockaddr_un *sun = (struct sockaddr_un *)args->dstaddr; + struct sock_xprt *transport; + struct rpc_xprt *xprt; + struct rpc_xprt *ret; + + xprt = xs_setup_xprt(args, xprt_tcp_slot_table_entries); + if (IS_ERR(xprt)) + return xprt; + transport = container_of(xprt, struct sock_xprt, xprt); + + xprt->prot = 0; + xprt->tsh_size = sizeof(rpc_fraghdr) / sizeof(u32); + xprt->max_payload = RPC_MAX_FRAGMENT_SIZE; + + xprt->bind_timeout = XS_BIND_TO; + xprt->reestablish_timeout = XS_TCP_INIT_REEST_TO; + xprt->idle_timeout = XS_IDLE_DISC_TO; + + xprt->ops = &xs_local_ops; + xprt->timeout = &xs_local_default_timeout; + + switch (sun->sun_family) { + case AF_LOCAL: + if (sun->sun_path[0] != '/') { + dprintk("RPC: bad AF_LOCAL address: %s\n", + sun->sun_path); + ret = ERR_PTR(-EINVAL); + goto out_err; + } + xprt_set_bound(xprt); + INIT_DELAYED_WORK(&transport->connect_worker, + xs_local_setup_socket); + xs_format_peer_addresses(xprt, "local", RPCBIND_NETID_LOCAL); + break; + default: + ret = ERR_PTR(-EAFNOSUPPORT); + goto out_err; + } + + dprintk("RPC: set up xprt to %s via AF_LOCAL\n", + xprt->address_strings[RPC_DISPLAY_ADDR]); + + if (try_module_get(THIS_MODULE)) + return xprt; + ret = ERR_PTR(-EINVAL); +out_err: + xprt_free(xprt); + return ret; +} + static const struct rpc_timeout xs_udp_default_timeout = { .to_initval = 5 * HZ, .to_maxval = 30 * HZ, @@ -2438,6 +2827,14 @@ out_err: return ret; } +static struct xprt_class xs_local_transport = { + .list = LIST_HEAD_INIT(xs_local_transport.list), + .name = "named UNIX socket", + .owner = THIS_MODULE, + .ident = XPRT_TRANSPORT_LOCAL, + .setup = xs_setup_local, +}; + static struct xprt_class xs_udp_transport = { .list = LIST_HEAD_INIT(xs_udp_transport.list), .name = "udp", @@ -2473,6 +2870,7 @@ int init_socket_xprt(void) sunrpc_table_header = register_sysctl_table(sunrpc_table); #endif + xprt_register_transport(&xs_local_transport); xprt_register_transport(&xs_udp_transport); xprt_register_transport(&xs_tcp_transport); xprt_register_transport(&xs_bc_tcp_transport); @@ -2493,6 +2891,7 @@ void cleanup_socket_xprt(void) } #endif + xprt_unregister_transport(&xs_local_transport); xprt_unregister_transport(&xs_udp_transport); xprt_unregister_transport(&xs_tcp_transport); xprt_unregister_transport(&xs_bc_tcp_transport); |