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2010-11-26Merge commit 'v2.6.37-rc3' into perf/coreIngo Molnar
Merge reason: Pick up latest fixes. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-11-26perf bench: Add feature that measures the performance of the ↵Hitoshi Mitake
arch/x86/lib/memcpy_64.S memcpy routines via 'perf bench mem' This patch ports arch/x86/lib/memcpy_64.S to perf bench mem memcpy for benchmarking memcpy() in userland with tricky and dirty way. util/include/asm/cpufeature.h, util/include/asm/dwarf2.h, and util/include/linux/linkage.h are mostly dummy files with small wrappers, so that we are able to include memcpy_64.S unmodified. Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: h.mitake@gmail.com Cc: Miao Xie <miaox@cn.fujitsu.com> Cc: Ma Ling <ling.ma@intel.com> Cc: Zhao Yakui <yakui.zhao@intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Andi Kleen <andi@firstfloor.org> LKML-Reference: <1290668693-27068-2-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-11-26perf bench: Print both of prefaulted and no prefaulted results by defaultHitoshi Mitake
After applying this patch, perf bench mem memcpy prints both of prefualted and without prefaulted score of memcpy(). New options --no-prefault and --only-prefault are added to print single result, mainly for scripting usage. Usage example: | mitake@X201i:~/linux/.../tools/perf% ./perf bench mem memcpy -l 500MB | # Running mem/memcpy benchmark... | # Copying 500MB Bytes ... | | 634.969014 MB/Sec | 4.828062 GB/Sec (with prefault) | mitake@X201i:~/linux/.../tools/perf% ./perf bench mem memcpy -l 500MB --only-prefault | # Running mem/memcpy benchmark... | # Copying 500MB Bytes ... | | 4.705192 GB/Sec (with prefault) | mitake@X201i:~/linux/.../tools/perf% ./perf bench mem memcpy -l 500MB --no-prefault | # Running mem/memcpy benchmark... | # Copying 500MB Bytes ... | | 642.725568 MB/Sec Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> Cc: h.mitake@gmail.com Cc: Miao Xie <miaox@cn.fujitsu.com> Cc: Ma Ling <ling.ma@intel.com> Cc: Zhao Yakui <yakui.zhao@intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Andi Kleen <andi@firstfloor.org> LKML-Reference: <1290668693-27068-1-git-send-email-mitake@dcl.info.waseda.ac.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-11-21Linux 2.6.37-rc3v2.6.37-rc3Linus Torvalds
2010-11-20perf stat: Change and clean up sys_perf_event_open error handlingCorey Ashford
This patch makes several changes to "perf stat": - "perf stat" will no longer go ahead and run the application when one or more of the specified events could not be opened. - Use error() and die() instead of pr_err() so that the output is more consistent with "perf top" and "perf record". - Handle permission errors in a more robust way, and in a similar way to "perf record" and "perf top". In addition, the sys_perf_event_open() error handling of "perf top" and "perf record" is made more consistent and adds the following phrase when an event doesn't open (with something ther than an access or permission error): "/bin/dmesg may provide additional information." This is added because kernel code doesn't have a good way of expressing detailed errors to user space, so its only avenue is to use printk's. However, many users may not think of looking at dmesg to find out why an event is being rejected. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <fweisbec@gmail.com> Cc: Ian Munsie <ianmunsi@au1.ibm.com> Cc: Michael Ellerman <michaele@au1.ibm.com> LKML-Reference: <1290217044-26293-1-git-send-email-cjashfor@linux.vnet.ibm.com> Signed-off-by: Corey Ashford <cjashfor@linux.vnet.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-11-19Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: Add EXT4_IOC_TRIM ioctl to handle batched discard fs: Do not dispatch FITRIM through separate super_operation ext4: ext4_fill_super shouldn't return 0 on corruption jbd2: fix /proc/fs/jbd2/<dev> when using an external journal ext4: missing unlock in ext4_clear_request_list() ext4: fix setting random pages PageUptodate
2010-11-19ext4: Add EXT4_IOC_TRIM ioctl to handle batched discardLukas Czerner
Filesystem independent ioctl was rejected as not common enough to be in core vfs ioctl. Since we still need to access to this functionality this commit adds ext4 specific ioctl EXT4_IOC_TRIM to dispatch ext4_trim_fs(). It takes fstrim_range structure as an argument. fstrim_range is definec in the include/linux/fs.h and its definition is as follows. struct fstrim_range { __u64 start; __u64 len; __u64 minlen; } start - first Byte to trim len - number of Bytes to trim from start minlen - minimum extent length to trim, free extents shorter than this number of Bytes will be ignored. This will be rounded up to fs block size. After the FITRIM is done, the number of actually discarded Bytes is stored in fstrim_range.len to give the user better insight on how much storage space has been really released for wear-leveling. Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2010-11-19fs: Do not dispatch FITRIM through separate super_operationLukas Czerner
There was concern that FITRIM ioctl is not common enough to be included in core vfs ioctl, as Christoph Hellwig pointed out there's no real point in dispatching this out to a separate vector instead of just through ->ioctl. So this commit removes ioctl_fstrim() from vfs ioctl and trim_fs from super_operation structure. Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2010-11-19Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: ceph: fix readdir EOVERFLOW on 32-bit archs ceph: fix frag offset for non-leftmost frags ceph: fix dangling pointer ceph: explicitly specify page alignment in network messages ceph: make page alignment explicit in osd interface ceph: fix comment, remove extraneous args ceph: fix update of ctime from MDS ceph: fix version check on racing inode updates ceph: fix uid/gid on resent mds requests ceph: fix rdcache_gen usage and invalidate ceph: re-request max_size if cap auth changes ceph: only let auth caps update max_size ceph: fix open for write on clustered mds ceph: fix bad pointer dereference in ceph_fill_trace ceph: fix small seq message skipping Revert "ceph: update issue_seq on cap grant"
2010-11-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (31 commits) net: fix kernel-doc for sk_filter_rcu_release be2net: Fix to avoid firmware update when interface is not open. netfilter: fix IP_VS dependencies net: irda: irttp: sync error paths of data- and udata-requests ipv6: Expose reachable and retrans timer values as msecs ipv6: Expose IFLA_PROTINFO timer values in msecs instead of jiffies 3c59x: fix build failure on !CONFIG_PCI ipg.c: remove id [SUNDANCE, 0x1021] net: caif: spi: fix potential NULL dereference ath9k_htc: Avoid setting QoS control for non-QoS frames net: zero kobject in rx_queue_release net: Fix duplicate volatile warning. MAINTAINERS: Add stmmac maintainer bonding: fix a race in IGMP handling cfg80211: fix can_beacon_sec_chan, reenable HT40 gianfar: fix signedness issue net: bnx2x: fix error value sign 8139cp: fix checksum broken r8169: fix checksum broken rds: Integer overflow in RDS cmsg handling ...
2010-11-19Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: sata_via: apply magic FIFO fix to vt6420 too
2010-11-19Revert "kernel: make /proc/kallsyms mode 400 to reduce ease of attacking"Linus Torvalds
This reverts commit 59365d136d205cc20fe666ca7f89b1c5001b0d5a. It turns out that this can break certain existing user land setups. Quoth Sarah Sharp: "On Wednesday, I updated my branch to commit 460781b from linus' tree, and my box would not boot. klogd segfaulted, which stalled the whole system. At first I thought it actually hung the box, but it continued booting after 5 minutes, and I was able to log in. It dropped back to the text console instead of the graphical bootup display for that period of time. dmesg surprisingly still works. I've bisected the problem down to this commit (commit 59365d136d205cc20fe666ca7f89b1c5001b0d5a) The box is running klogd 1.5.5ubuntu3 (from Jaunty). Yes, I know that's old. I read the bit in the commit about changing the permissions of kallsyms after boot, but if I can't boot that doesn't help." So let's just keep the old default, and encourage distributions to do the "chmod -r /proc/kallsyms" in their bootup scripts. This is not worth a kernel option to change default behavior, since it's so easily done in user space. Reported-and-bisected-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: Marcus Meissner <meissner@suse.de> Cc: Tejun Heo <tj@kernel.org> Cc: Eugene Teo <eugeneteo@kernel.org> Cc: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-19perf tools: Change my maintainer addressArnaldo Carvalho de Melo
Also remove old snail mail address from CREDITS, moved years ago. LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-11-19perf tools: Remove hardcoded include paths for elfutilsRobert Morell
This change removes the use of hardcoded absolute "/usr/include/elfutils" paths from the perf build. The problem with hardcoded paths is that it prevents them from being overridden by $prefix or by -I in CFLAGS (e.g., for cross-compiling purposes). Instead, just include the "elfutils/" subdirectory as a relative path when files are needed from that directory. Tested by building perf: - Cross-compiled for ARM on x86_64 - Built natively on x86_64 - Built on x86_64 with /usr/include/elfutils moved to another location and manually included in CFLAGS Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> LKML-Reference: <1289945793-31441-1-git-send-email-rmorell@nvidia.com> Signed-off-by: Robert Morell <rmorell@nvidia.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-11-19Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: fix typo in keycode validation supporting large scancodes Input: aiptek - tighten up permissions on sysfs attributes Input: sysrq - pass along lone Alt + SysRq
2010-11-19Merge branch 'drm-intel-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel * 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel: drm/i915: Disable FBC on Ironlake to save 1W drm/i915: Take advantage of auto-polling CRT hotplug detection on PCH hardware drm/i915/crt: Introduce struct intel_crt drm/i915: Do not hold mutex when faulting in user addresses drm: radeon: fix error value sign drm/radeon/kms: fix and unify tiled buffer alignment checking for r6xx/7xx drm/i915: Retire any pending operations on the old scanout when switching drm/i915: Fix I2C adapter registration
2010-11-19Merge branch 'drm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (40 commits) drm/radeon/kms: i2c s/sprintf/snprintf/g for safety drm/radeon/kms: fix i2c pad masks on rs4xx drm/ttm: Fix up a theoretical deadlock drm/radeon/kms: fix tiling info on evergreen drm/radeon/kms: fix alignment when allocating buffers drm/vmwgfx: Fix up an error path during bo creation drm/radeon/kms: register an i2c adapter name for the dp aux bus drm/radeon/kms/atom: add proper external encoders support drm/radeon/kms/atom: cleanup and unify DVO handling drm/radeon/kms: properly power up/down the eDP panel as needed (v4) drm/radeon/kms/atom: set sane defaults in atombios_get_encoder_mode() drm/radeon/kms: turn the backlight off explicitly for dpms drm/radeon/kms: fix typo in r600 cs checker drm: radeon: fix error value sign drm/radeon/kms: fix and unify tiled buffer alignment checking for r6xx/7xx nouveau: Acknowledge HPD irq in handler, not bottom half drm/nouveau: Fix a few confusions between "chipset" and "card_type". drm/nouveau: don't expose backlight control when available through ACPI drm/nouveau/pm: improve memtiming mappings drm/nouveau: Make PCIE GART size depend on the available RAMIN space. ...
2010-11-19perf stat: Add no-aggregation mode to -aStephane Eranian
This patch adds a new -A option to perf stat. If specified then perf stat does not aggregate counts across all monitored CPUs in system-wide mode, i.e., when using -a. This option is not supported in per-thread mode. Being able to get a per-cpu breakdown is useful to detect imbalances between CPUs when running a uniform workload than spans all monitored CPUs. The second version corrects the missing cpumap[] support, so that it works when the -C option is used. The third version fixes a missing cpumap[] in print_counter() and removes a stray patch in builtin-trace.c. Examples on a 4-way system: # perf stat -a -e cycles,instructions -- sleep 1 Performance counter stats for 'sleep 1': 9592808135 cycles 3490380006 instructions # 0.364 IPC 1.001584632 seconds time elapsed # perf stat -a -A -e cycles,instructions -- sleep 1 Performance counter stats for 'sleep 1': CPU0 2398163767 cycles CPU1 2398180817 cycles CPU2 2398217115 cycles CPU3 2398247483 cycles CPU0 872282046 instructions # 0.364 IPC CPU1 873481776 instructions # 0.364 IPC CPU2 872638127 instructions # 0.364 IPC CPU3 872437789 instructions # 0.364 IPC 1.001556052 seconds time elapsed Cc: David S. Miller <davem@davemloft.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Robert Richter <robert.richter@amd.com> LKML-Reference: <4ce257b5.1e07e30a.7b6b.3aa9@mx.google.com> Signed-off-by: Stephane Eranian <eranian@google.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-11-19sata_via: apply magic FIFO fix to vt6420 tooTejun Heo
vt6420 has the same FIFO overflow problem as vt6421 when combined with certain devices. This patch applies the magic fix to vt6420 too. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Martin Qvist <q@maq.dk> Reported-by: Peter Zijlstra <peterz@infradead.org> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: stable@kernel.org Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-11-19net: fix kernel-doc for sk_filter_rcu_releaseRandy Dunlap
Fix kernel-doc warning for sk_filter_rcu_release(): Warning(net/core/filter.c:586): missing initial short description on line: * sk_filter_rcu_release: Release a socket filter by rcu_head Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-19be2net: Fix to avoid firmware update when interface is not open.Sarveshwar Bandi
Since interrupts are enabled only when open is called on the interface, Attempting a firmware update operation when interface is down could lead to partial success or failure of operation. This fix fails the request if netif_running is false. Signed-off-by: Sarveshwar Bandi <Sarveshwar.Bandi@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-19ext4: ext4_fill_super shouldn't return 0 on corruptionDarrick J. Wong
At the start of ext4_fill_super, ret is set to -EINVAL, and any failure path out of that function returns ret. However, the generic_check_addressable clause sets ret = 0 (if it passes), which means that a subsequent failure (e.g. a group checksum error) returns 0 even though the mount should fail. This causes vfs_kern_mount in turn to think that the mount succeeded, leading to an oops. A simple fix is to avoid using ret for the generic_check_addressable check, which was last changed in commit 30ca22c70e3ef0a96ff84de69cd7e8561b416cb2. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2010-11-19drm/i915: Disable FBC on Ironlake to save 1WAlex Shi
Frame buffer compression is broken on Ironlake due to buggy hardware. Currently it is disabled through chicken bits, but it still consumes over 1W more than if we simply never attempt to enable the FBC code paths. Signed-off-by: Alex Shi <alex.shi@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org
2010-11-19drm/i915: Take advantage of auto-polling CRT hotplug detection on PCH hardwareKeith Packard
Both IBX and CPT have an automatic hotplug detection mode which appears to work reliably enough that we can dispense with the manual force hotplug trigger stuff. This means that hotplug detection is as simple as reading the current hotplug register values. The first time the hotplug detection is activated, the code synchronously waits for a hotplug sequence in case the hardware hasn't bothered to do a detection cycle since being initialized. Signed-off-by: Keith Packard <keithp@keithp.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-11-19drm/i915/crt: Introduce struct intel_crtChris Wilson
We will use this structure in future patches to store CRT specific information on the encoder. Split out and tweaked from a patch by Keith Packard. Signed-off-by: Keith Packard <keithp@kithp.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-11-19drm/i915: Do not hold mutex when faulting in user addressesChris Wilson
Linus Torvalds found that it was rather trivial to trigger a system freeze: In fact, with lockdep, I don't even need to do the sysrq-d thing: it shows the bug as it happens. It's the X server taking the same lock recursively. Here's the problem: ============================================= [ INFO: possible recursive locking detected ] 2.6.37-rc2-00012-gbdbd01a #7 --------------------------------------------- Xorg/2816 is trying to acquire lock: (&dev->struct_mutex){+.+.+.}, at: [<ffffffff812c626c>] i915_gem_fault+0x50/0x17e but task is already holding lock: (&dev->struct_mutex){+.+.+.}, at: [<ffffffff812c403b>] i915_mutex_lock_interruptible+0x28/0x4a other info that might help us debug this: 2 locks held by Xorg/2816: #0: (&dev->struct_mutex){+.+.+.}, at: [<ffffffff812c403b>] i915_mutex_lock_interruptible+0x28/0x4a #1: (&mm->mmap_sem){++++++}, at: [<ffffffff81022d4f>] page_fault+0x156/0x37b This recursion was introduced by rearranging the locking to avoid the double locking on the fast path (4f27b5d and fbd5a26d) and the introduction of the prefault to encourage the fast paths (b5e4f2b). In order to undo the problem, we rearrange the code to perform the access validation upfront, attempt to prefault and then fight for control of the mutex. the best case scenario where the mutex is uncontended the prefaulting is not wasted. Reported-and-tested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-11-19drm/radeon/kms: i2c s/sprintf/snprintf/g for safetyAlex Deucher
As per advice from Jean Delvare. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-19drm/radeon/kms: fix i2c pad masks on rs4xxAlex Deucher
These got lost in the last i2c cleanup. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=23222 Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-18Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: [libata] remove SCSI host lock and serial number usage from ata_scsi_queuecmd
2010-11-18MAINTAINERS: update documentation entriesRandy Dunlap
Update kernel-doc and Documentation maintainers info. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-18Documentation/development-process: more staging infoAndres Salomon
Document things that I would've liked to have known when submitting a driver to gregkh for staging. Signed-off-by: Andres Salomon <dilinger@queued.net> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-18Documentation/development-process: use -next trees instead of stagingAndres Salomon
This is confusing, as we have "staging" trees for drivers/staging. Call them -next trees. Signed-off-by: Andres Salomon <dilinger@queued.net> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-18Documentation: change email address for Hans KochHans J. Koch
My old mail address doesn't exist anymore. This changes all occurrences to my new address. Signed-off-by: Hans J. Koch <hjk@hansjkoch.de> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-18Documentation/gpio.txt: explain poll/select usageBernhard Walle
Add a bit more information how to use poll(2) on GPIO value files correctly. For me it was not clear that I need to poll(2) for POLLPRI|POLLERR or select(2) for exceptfds. Signed-off-by: Bernhard Walle <walle@corscience.de> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-18Documentation: make configfs example code simpler, clearerDan Carpenter
If "p" is NULL then it will cause an oops when we pass it to simple_strtoul(). In this case "p" can not be NULL so I removed the check. I also changed the check a little to make it more explicit that we are testing whether p points to the NUL char. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-18kernel-doc: escape xml for structsRandy Dunlap
scripts/kernel-doc was leaving unescaped '<', '>', and '&' in generated xml output for structs. This causes xml parser errors. Convert these characters to "&lt;", "&gt;", and "&amp;" as needed to prevent errors. Most of the conversion was already done; complete it just before output. Documentation/DocBook/device-drivers.xml:41883: parser error : StartTag: invalid element name #define INPUT_KEYMAP_BY_INDEX (1 << 0) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-18netfilter: fix IP_VS dependenciesPatrick McHardy
When NF_CONNTRACK is enabled, IP_VS uses conntrack symbols. Therefore IP_VS can't be linked statically when conntrack is built modular. Reported-by: Justin P. Mattock <justinmattock@gmail.com> Tested-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-18net: irda: irttp: sync error paths of data- and udata-requestsWolfram Sang
irttp_data_request() returns meaningful errorcodes, while irttp_udata_request() just returns -1 in similar situations. Sync the two and the loglevels of the accompanying output. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-18ipv6: Expose reachable and retrans timer values as msecsThomas Graf
Expose reachable and retrans timer values in msecs instead of jiffies. Both timer values are already exposed as msecs in the neighbour table netlink interface. The creation timestamp format with increased precision is kept but cleaned up. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-18Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
2010-11-18Fix build failure at cx25821-video driverYouquan Song
Kernel build fail for cx25821-video has depends on smp_lock.h header file, but the dependency is removed in recent commit 451a3c24b013. Signed-off-by: Youquan Song <youquan.song@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-18Merge branch 'perf/core' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/core
2010-11-18ipv6: Expose IFLA_PROTINFO timer values in msecs instead of jiffiesThomas Graf
IFLA_PROTINFO exposes timer related per device settings in jiffies. Change it to expose these values in msecs like the sysctl interface does. I did not find any users of IFLA_PROTINFO which rely on any of these values and even if there are, they are likely already broken because there is no way for them to reliably convert such a value to another time format. Signed-off-by: Thomas Graf <tgraf@infradead.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-18hardirq.h: needs sched.h if using BKLLinus Torvalds
This really isn't the right thing to do, and strictly speaking we should have the BKL depth count in the thread info right next to the preempt count. The two really do go together. However, since that would involve a patch to all architectures, and the BKL is finally going away, it's simply not worth the effort to do the RightThing(tm). Just re-instate the <linux/sched.h> include that we used to get accidentally from the smp_lock.h one. This is all fallout from the same old "BKL: remove extraneous #include <smp_lock.h>" commit. Reported-by: Ingo Molnar <mingo@elte.hu> Tested-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-183c59x: fix build failure on !CONFIG_PCINamhyung Kim
VORTEX_PCI() could return NULL so it needs to be casted before accessing any member of struct pci_dev. This fixes following build failure. Likewise VORTEX_EISA() was changed also. CC [M] drivers/net/3c59x.o drivers/net/3c59x.c: In function 'acpi_set_WOL': drivers/net/3c59x.c:3211:39: warning: dereferencing 'void *' pointer drivers/net/3c59x.c:3211:39: error: request for member 'current_state' in something not a structure or union make[3]: *** [drivers/net/3c59x.o] Error 1 make[2]: *** [drivers/net/3c59x.o] Error 2 make[1]: *** [sub-make] Error 2 make: *** [all] Error 2 Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-18ipg.c: remove id [SUNDANCE, 0x1021]Ken Kawasaki
ipg.c: The id [SUNDANCE, 0x1021] (=[0x13f0, 0x1021]) is defined at dl2k.h and ipg.c. But this device works better with dl2k driver. This problem is similar with the commit [25cca5352712561fba97bd37c495593d641c1d39 ipg: Remove device claimed by dl2k from pci id table] at 11 Feb 2010. Signed-off-by: Ken Kawasaki <ken_kawasaki@spring.nifty.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-18net: caif: spi: fix potential NULL dereferenceVasiliy Kulikov
alloc_netdev() is not checked here for NULL return value. dev is check instead. It might lead to NULL dereference of ndev. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-18ath9k_htc: Avoid setting QoS control for non-QoS framesRajkumar Manoharan
Setting tid information in the TX header is required only for QoS frames. Not handling this case causes severe data loss with some APs. Cc: stable@kernel.org Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-18Merge branch 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
* 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: VMX: Fix host userspace gsbase corruption KVM: Correct ordering of ldt reload wrt fs/gs reload
2010-11-18net: zero kobject in rx_queue_releaseJohn Fastabend
netif_set_real_num_rx_queues() can decrement and increment the number of rx queues. For example ixgbe does this as features and offloads are toggled. Presumably this could also happen across down/up on most devices if the available resources changed (cpu offlined). The kobject needs to be zero'd in this case so that the state is not preserved across kobject_put()/kobject_init_and_add(). This resolves the following error report. ixgbe 0000:03:00.0: eth2: NIC Link is Up 10 Gbps, Flow Control: RX/TX kobject (ffff880324b83210): tried to init an initialized object, something is seriously wrong. Pid: 1972, comm: lldpad Not tainted 2.6.37-rc18021qaz+ #169 Call Trace: [<ffffffff8121c940>] kobject_init+0x3a/0x83 [<ffffffff8121cf77>] kobject_init_and_add+0x23/0x57 [<ffffffff8107b800>] ? mark_lock+0x21/0x267 [<ffffffff813c6d11>] net_rx_queue_update_kobjects+0x63/0xc6 [<ffffffff813b5e0e>] netif_set_real_num_rx_queues+0x5f/0x78 [<ffffffffa0261d49>] ixgbe_set_num_queues+0x1c6/0x1ca [ixgbe] [<ffffffffa0262509>] ixgbe_init_interrupt_scheme+0x1e/0x79c [ixgbe] [<ffffffffa0274596>] ixgbe_dcbnl_set_state+0x167/0x189 [ixgbe] Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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