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2017-01-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfDavid S. Miller
Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains a large batch with Netfilter fixes for your net tree, they are: 1) Two patches to solve conntrack garbage collector cpu hogging, one to remove GC_MAX_EVICTS and another to look at the ratio (scanned entries vs. evicted entries) to make a decision on whether to reduce or not the scanning interval. From Florian Westphal. 2) Two patches to fix incorrect set element counting if NLM_F_EXCL is is not set. Moreover, don't decrenent set->nelems from abort patch if -ENFILE which leaks a spare slot in the set. This includes a patch to deconstify the set walk callback to update set->ndeact. 3) Two fixes for the fwmark_reflect sysctl feature: Propagate mark to reply packets both from nf_reject and local stack, from Pau Espin Pedrol. 4) Fix incorrect handling of loopback traffic in rpfilter and nf_tables fib expression, from Liping Zhang. 5) Fix oops on stateful objects netlink dump, when no filter is specified. Also from Liping Zhang. 6) Fix a build error if proc is not available in ipt_CLUSTERIP, related to fix that was applied in the previous batch for net. From Arnd Bergmann. 7) Fix lack of string validation in table, chain, set and stateful object names in nf_tables, from Liping Zhang. Moreover, restrict maximum log prefix length to 127 bytes, otherwise explicitly bail out. 8) Two patches to fix spelling and typos in nf_tables uapi header file and Kconfig, patches from Alexander Alemayhu and William Breathitt Gray. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-26Merge tag 'drm-fixes-for-v4.10-rc6-revert-one' of ↵Linus Torvalds
git://people.freedesktop.org/~airlied/linux Pull drm revert from Dave Airlie: "Revert one patch missing some prereqs. One of the connector fixes was missing some prereqs, we have an alternate driver fix that should work that I'll send tomorrow. Today is a holiday here so quickly smashing this out" Daniel Vetter explains: "I pushed a locking change to fix a nouveau rpm issue to -fixes that needed the connector_list rework. And that's only in -next, but I missed that. Dave has the revert in a pull, and he'll follow-up with the hack nouveau patch for 4.10, and then we'll reapply the proper fix again for -next and revert the hacks. A bit a mess, but should be sorted soon" * tag 'drm-fixes-for-v4.10-rc6-revert-one' of git://people.freedesktop.org/~airlied/linux: Revert "drm/probe-helpers: Drop locking from poll_enable"
2017-01-26Revert "drm/probe-helpers: Drop locking from poll_enable"Dave Airlie
This reverts commit 3846fd9b86001bea171943cc3bb9222cb6da6b42. There were some precursor commits missing for this around connector locking, we should probably merge Lyude's nouveau avoid the problem patch.
2017-01-25net: phy: leds: Fix truncated LED trigger namesGeert Uytterhoeven
Commit 4567d686f5c6d955 ("phy: increase size of MII_BUS_ID_SIZE and bus_id") increased the size of MII bus IDs, but forgot to update the private definition in <linux/phy_led_triggers.h>. This may cause: 1. Truncation of LED trigger names, 2. Duplicate LED trigger names, 3. Failures registering LED triggers, 4. Crashes due to bad error handling in the LED trigger failure path. To fix this, and prevent the definitions going out of sync again in the future, let the PHY LED trigger code use the existing MII_BUS_ID_SIZE definition. Example: - Before I had triggers "ee700000.etherne:01:100Mbps" and "ee700000.etherne:01:10Mbps", - After the increase of MII_BUS_ID_SIZE, both became "ee700000.ethernet-ffffffff:01:" => FAIL, - Now, the triggers are "ee700000.ethernet-ffffffff:01:100Mbps" and "ee700000.ethernet-ffffffff:01:10Mbps", which are unique again. Fixes: 4567d686f5c6d955 ("phy: increase size of MII_BUS_ID_SIZE and bus_id") Fixes: 2e0bc452f4721520 ("net: phy: leds: add support for led triggers on phy link state change") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-25net: phy: leds: Break dependency of phy.h on phy_led_triggers.hGeert Uytterhoeven
<linux/phy.h> includes <linux/phy_led_triggers.h>, which is not really needed. Drop the include from <linux/phy.h>, and add it to all users that didn't include it explicitly. Suggested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-24mm, page_alloc: fix check for NULL preferred_zoneVlastimil Babka
Patch series "fix premature OOM regression in 4.7+ due to cpuset races". This is v2 of my attempt to fix the recent report based on LTP cpuset stress test [1]. The intention is to go to stable 4.9 LTSS with this, as triggering repeated OOMs is not nice. That's why the patches try to be not too intrusive. Unfortunately why investigating I found that modifying the testcase to use per-VMA policies instead of per-task policies will bring the OOM's back, but that seems to be much older and harder to fix problem. I have posted a RFC [2] but I believe that fixing the recent regressions has a higher priority. Longer-term we might try to think how to fix the cpuset mess in a better and less error prone way. I was for example very surprised to learn, that cpuset updates change not only task->mems_allowed, but also nodemask of mempolicies. Until now I expected the parameter to alloc_pages_nodemask() to be stable. I wonder why do we then treat cpusets specially in get_page_from_freelist() and distinguish HARDWALL etc, when there's unconditional intersection between mempolicy and cpuset. I would expect the nodemask adjustment for saving overhead in g_p_f(), but that clearly doesn't happen in the current form. So we have both crazy complexity and overhead, AFAICS. [1] https://lkml.kernel.org/r/CAFpQJXUq-JuEP=QPidy4p_=FN0rkH5Z-kfB4qBvsf6jMS87Edg@mail.gmail.com [2] https://lkml.kernel.org/r/7c459f26-13a6-a817-e508-b65b903a8378@suse.cz This patch (of 4): Since commit c33d6c06f60f ("mm, page_alloc: avoid looking up the first zone in a zonelist twice") we have a wrong check for NULL preferred_zone, which can theoretically happen due to concurrent cpuset modification. We check the zoneref pointer which is never NULL and we should check the zone pointer. Also document this in first_zones_zonelist() comment per Michal Hocko. Fixes: c33d6c06f60f ("mm, page_alloc: avoid looking up the first zone in a zonelist twice") Link: http://lkml.kernel.org/r/20170120103843.24587-2-vbabka@suse.cz Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Ganapatrao Kulkarni <gpkulkarni@gmail.com> Cc: Michal Hocko <mhocko@suse.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-01-24kernel/watchdog: prevent false hardlockup on overloaded systemDon Zickus
On an overloaded system, it is possible that a change in the watchdog threshold can be delayed long enough to trigger a false positive. This can easily be achieved by having a cpu spinning indefinitely on a task, while another cpu updates watchdog threshold. What happens is while trying to park the watchdog threads, the hrtimers on the other cpus trigger and reprogram themselves with the new slower watchdog threshold. Meanwhile, the nmi watchdog is still programmed with the old faster threshold. Because the one cpu is blocked, it prevents the thread parking on the other cpus from completing, which is needed to shutdown the nmi watchdog and reprogram it correctly. As a result, a false positive from the nmi watchdog is reported. Fix this by setting a park_in_progress flag to block all lockups until the parking is complete. Fix provided by Ulrich Obergfell. [akpm@linux-foundation.org: s/park_in_progress/watchdog_park_in_progress/] Link: http://lkml.kernel.org/r/1481041033-192236-1-git-send-email-dzickus@redhat.com Signed-off-by: Don Zickus <dzickus@redhat.com> Reviewed-by: Aaron Tomlin <atomlin@redhat.com> Cc: Ulrich Obergfell <uobergfe@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-01-24memory_hotplug: make zone_can_shift() return a boolean valueYasuaki Ishimatsu
online_{kernel|movable} is used to change the memory zone to ZONE_{NORMAL|MOVABLE} and online the memory. To check that memory zone can be changed, zone_can_shift() is used. Currently the function returns minus integer value, plus integer value and 0. When the function returns minus or plus integer value, it means that the memory zone can be changed to ZONE_{NORNAL|MOVABLE}. But when the function returns 0, there are two meanings. One of the meanings is that the memory zone does not need to be changed. For example, when memory is in ZONE_NORMAL and onlined by online_kernel the memory zone does not need to be changed. Another meaning is that the memory zone cannot be changed. When memory is in ZONE_NORMAL and onlined by online_movable, the memory zone may not be changed to ZONE_MOVALBE due to memory online limitation(see Documentation/memory-hotplug.txt). In this case, memory must not be onlined. The patch changes the return type of zone_can_shift() so that memory online operation fails when memory zone cannot be changed as follows: Before applying patch: # grep -A 35 "Node 2" /proc/zoneinfo Node 2, zone Normal <snip> node_scanned 0 spanned 8388608 present 7864320 managed 7864320 # echo online_movable > memory4097/state # grep -A 35 "Node 2" /proc/zoneinfo Node 2, zone Normal <snip> node_scanned 0 spanned 8388608 present 8388608 managed 8388608 online_movable operation succeeded. But memory is onlined as ZONE_NORMAL, not ZONE_MOVABLE. After applying patch: # grep -A 35 "Node 2" /proc/zoneinfo Node 2, zone Normal <snip> node_scanned 0 spanned 8388608 present 7864320 managed 7864320 # echo online_movable > memory4097/state bash: echo: write error: Invalid argument # grep -A 35 "Node 2" /proc/zoneinfo Node 2, zone Normal <snip> node_scanned 0 spanned 8388608 present 7864320 managed 7864320 online_movable operation failed because of failure of changing the memory zone from ZONE_NORMAL to ZONE_MOVABLE Fixes: df429ac03936 ("memory-hotplug: more general validation of zone during online") Link: http://lkml.kernel.org/r/2f9c3837-33d7-b6e5-59c0-6ca4372b2d84@gmail.com Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Reviewed-by: Reza Arbab <arbab@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-01-24net: Specify the owning module for lwtunnel opsRobert Shearman
Modules implementing lwtunnel ops should not be allowed to unload while there is state alive using those ops, so specify the owning module for all lwtunnel ops. Signed-off-by: Robert Shearman <rshearma@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-24netfilter: nf_tables: deconstify walk callback functionPablo Neira Ayuso
The flush operation needs to modify set and element objects, so let's deconstify this. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-01-24netfilter: nft_log: restrict the log prefix length to 127Liping Zhang
First, log prefix will be truncated to NF_LOG_PREFIXLEN-1, i.e. 127, at nf_log_packet(), so the extra part is useless. Second, after adding a log rule with a very very long prefix, we will fail to dump the nft rules after this _special_ one, but acctually, they do exist. For example: # name_65000=$(printf "%0.sQ" {1..65000}) # nft add rule filter output log prefix "$name_65000" # nft add rule filter output counter # nft add rule filter output counter # nft list chain filter output table ip filter { chain output { type filter hook output priority 0; policy accept; } } So now, restrict the log prefix length to NF_LOG_PREFIXLEN-1. Fixes: 96518518cc41 ("netfilter: add nftables") Signed-off-by: Liping Zhang <zlpnobody@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-01-24RDMA/qedr: Add uapi header qedr-abi.hAmrani, Ram
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24RDMA/core: Add the function ib_mtu_int_to_enumAmrani, Ram
As the functionality to convert the MTU from a number to enum_ib_mtu is ubiquitous, define a dedicated function and remove the duplicated code. Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24SUNRPC: cleanup ida information when removing sunrpc moduleKinglong Mee
After removing sunrpc module, I get many kmemleak information as, unreferenced object 0xffff88003316b1e0 (size 544): comm "gssproxy", pid 2148, jiffies 4294794465 (age 4200.081s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffffb0cfb58a>] kmemleak_alloc+0x4a/0xa0 [<ffffffffb03507fe>] kmem_cache_alloc+0x15e/0x1f0 [<ffffffffb0639baa>] ida_pre_get+0xaa/0x150 [<ffffffffb0639cfd>] ida_simple_get+0xad/0x180 [<ffffffffc06054fb>] nlmsvc_lookup_host+0x4ab/0x7f0 [lockd] [<ffffffffc0605e1d>] lockd+0x4d/0x270 [lockd] [<ffffffffc06061e5>] param_set_timeout+0x55/0x100 [lockd] [<ffffffffc06cba24>] svc_defer+0x114/0x3f0 [sunrpc] [<ffffffffc06cbbe7>] svc_defer+0x2d7/0x3f0 [sunrpc] [<ffffffffc06c71da>] rpc_show_info+0x8a/0x110 [sunrpc] [<ffffffffb044a33f>] proc_reg_write+0x7f/0xc0 [<ffffffffb038e41f>] __vfs_write+0xdf/0x3c0 [<ffffffffb0390f1f>] vfs_write+0xef/0x240 [<ffffffffb0392fbd>] SyS_write+0xad/0x130 [<ffffffffb0d06c37>] entry_SYSCALL_64_fastpath+0x1a/0xa9 [<ffffffffffffffff>] 0xffffffffffffffff I found, the ida information (dynamic memory) isn't cleanup. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Fixes: 2f048db4680a ("SUNRPC: Add an identifier for struct rpc_clnt") Cc: stable@vger.kernel.org # v3.12+ Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2017-01-24ARCv2: MCIP: update the BCR per current changesVineet Gupta
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2017-01-24nfs: Don't increment lock sequence ID after NFS4ERR_MOVEDChuck Lever
Xuan Qi reports that the Linux NFSv4 client failed to lock a file that was migrated. The steps he observed on the wire: 1. The client sent a LOCK request to the source server 2. The source server replied NFS4ERR_MOVED 3. The client switched to the destination server 4. The client sent the same LOCK request to the destination server with a bumped lock sequence ID 5. The destination server rejected the LOCK request with NFS4ERR_BAD_SEQID RFC 3530 section 8.1.5 provides a list of NFS errors which do not bump a lock sequence ID. However, RFC 3530 is now obsoleted by RFC 7530. In RFC 7530 section 9.1.7, this list has been updated by the addition of NFS4ERR_MOVED. Reported-by: Xuan Qi <xuan.qi@oracle.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: stable@vger.kernel.org # v3.7+ Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2017-01-24IB/cxgb3: fix misspelling in header guardNicolas Iooss
Use CXGB3_... instead of CXBG3_... Fixes: a85fb3383340 ("IB/cxgb3: Move user vendor structures") Cc: stable@vger.kernel.org # 4.9 Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Acked-by: Steve Wise <swise@chelsio.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-23Merge tag 'gpio-v4.10-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO fix from Linus Walleij: "A single lockdep fix, nothing else going on. This makes lockdep noiseless and work properly with threaded GPIO IRQchips. Summary: Fix a lockdep issue: the threaded irqchips also need their unique key, and take this opportunity to get rid of the horrible macro and replace it with a static inline" * tag 'gpio-v4.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: provide lockdep keys for nested/unnested irqchips
2017-01-23Merge tag 'drm-fixes-for-v4.10-rc6' of ↵Linus Torvalds
git://people.freedesktop.org/~airlied/linux Pull drm fixes from Dave Airlie: "drm fixes across the board. Okay holidays and LCA kinda caught up with me, I thought I'd get some of this dequeued last week, but Hobart was sunny and warm and not all gloomy and rainy as usual. This is a bit large, but not too much considering it's two weeks stuff from AMD and Intel. core: - one locking fix that helps with dynamic suspend/resume races i915: - mostly GVT updates, GVT was a recent introduction so fixes for it shouldn't cause any notable side effects. amdgpu: - a bunch of fixes for GPUs with a different memory controller design that need different firmware. exynos: - decon regression fixes msm: - two regression fixes etnaviv: - a workaround for an mmu bug that needs a lot more work. virtio: - sparse fix, and a maintainers update" * tag 'drm-fixes-for-v4.10-rc6' of git://people.freedesktop.org/~airlied/linux: (56 commits) drm/exynos/decon5433: set STANDALONE_UPDATE_F on output enablement drm/exynos/decon5433: fix CMU programming drm/exynos/decon5433: do not disable video after reset drm/i915: Ignore bogus plane coordinates on SKL when the plane is not visible drm/i915: Remove WaDisableLSQCROPERFforOCL KBL workaround. drm/amdgpu: add support for new hainan variants drm/radeon: add support for new hainan variants drm/amdgpu: change clock gating mode for uvd_v4. drm/amdgpu: fix program vce instance logic error. drm/amdgpu: fix bug set incorrect value to vce register Revert "drm/amdgpu: Only update the CUR_SIZE register when necessary" drm/msm: fix potential null ptr issue in non-iommu case drm/msm/mdp5: rip out plane->pending tracking drm/exynos/decon5433: set STANDALONE_UPDATE_F also if planes are disabled drm/exynos/decon5433: update shadow registers iff there are active windows drm/i915/gvt: rewrite gt reset handler using new function intel_gvt_reset_vgpu_locked drm/i915/gvt: fix vGPU instance reuse issues by vGPU reset function drm/i915/gvt: introduce intel_vgpu_reset_mmio() to reset mmio space drm/i915/gvt: move mmio init/clean function to mmio.c drm/i915/gvt: introduce intel_vgpu_reset_cfg_space to reset configuration space ...
2017-01-20Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM fixes from Radim Krčmář: "ARM: - Fix for timer setup on VHE machines - Drop spurious warning when the timer races against the vcpu running again - Prevent a vgic deadlock when the initialization fails (for stable) s390: - Fix a kernel memory exposure (for stable) x86: - Fix exception injection when hypercall instruction cannot be patched" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: s390: do not expose random data via facility bitmap KVM: x86: fix fixing of hypercalls KVM: arm/arm64: vgic: Fix deadlock on error handling KVM: arm64: Access CNTHCTL_EL2 bit fields correctly on VHE systems KVM: arm/arm64: Fix occasional warning from the timer work function
2017-01-20Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is a set of 12 fixes including the mpt3sas one that was causing hangs on ATA passthrough. The others are a couple of zoned block device fixes, a SAS device detection bug which lead to SATA drives not being matched to bays, two qla2xxx MSI fixes, a qla2xxx req for rsp confusion caused by cut and paste, and a few other minor fixes" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: mpt3sas: fix hang on ata passthrough commands scsi: lpfc: Set elsiocb contexts to NULL after freeing it scsi: sd: Ignore zoned field for host-managed devices scsi: sd: Fix wrong DPOFUA disable in sd_read_cache_type scsi: bfa: fix wrongly initialized variable in bfad_im_bsg_els_ct_request() scsi: ses: Fix SAS device detection in enclosure scsi: libfc: Fix variable name in fc_set_wwpn scsi: lpfc: avoid double free of resource identifiers scsi: qla2xxx: remove irq_affinity_notifier scsi: qla2xxx: fix MSI-X vector affinity scsi: qla2xxx: Fix apparent cut-n-paste error. scsi: qla2xxx: Get mutex lock before checking optrom_state
2017-01-20virtio-net: restore VIRTIO_HDR_F_DATA_VALID on receivingJason Wang
Commit 501db511397f ("virtio: don't set VIRTIO_NET_HDR_F_DATA_VALID on xmit") in fact disables VIRTIO_HDR_F_DATA_VALID on receiving path too, fixing this by adding a hint (has_data_valid) and set it only on the receiving path. Cc: Rolf Neugebauer <rolf.neugebauer@docker.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-20Revert "PM / sleep / ACPI: Use the ACPI_FADT_LOW_POWER_S0 flag"Rafael J. Wysocki
Revert commit 08b98d329165 (PM / sleep / ACPI: Use the ACPI_FADT_LOW_POWER_S0 flag) as it caused system suspend (in the default configuration) to fail on Dell XPS13 (9360) with the Kaby Lake processor. Fixes: 08b98d329165 (PM / sleep / ACPI: Use the ACPI_FADT_LOW_POWER_S0 flag) Reported-by: Paul Menzel <pmenzel@molgen.mpg.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-19gpio: provide lockdep keys for nested/unnested irqchipsLinus Walleij
The helper function for adding a GPIO chip compiles in a lockdep key for debugging, the same key is needed for nested chips as well. The macro construction is unreadable, replace this with two static inlines instead. The _gpiochip_irqchip_add prefixed function is not helpful, rename it with gpiochip_irqchip_add_key() that tell us what the function is actually doing. Fixes: d245b3f9bd36 ("gpio: simplify adding threaded interrupts") Cc: Roger Quadros <rogerq@ti.com> Reported-by: Clemens Gruber <clemens.gruber@pqgruber.com> Reported-by: Roger Quadros <rogerq@ti.com> Reported-by: Grygorii Strashko <grygorii.strashko@ti.com> Tested-by: Clemens Gruber <clemens.gruber@pqgruber.com> Tested-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-18bpf: don't trigger OOM killer under pressure with map allocDaniel Borkmann
This patch adds two helpers, bpf_map_area_alloc() and bpf_map_area_free(), that are to be used for map allocations. Using kmalloc() for very large allocations can cause excessive work within the page allocator, so i) fall back earlier to vmalloc() when the attempt is considered costly anyway, and even more importantly ii) don't trigger OOM killer with any of the allocators. Since this is based on a user space request, for example, when creating maps with element pre-allocation, we really want such requests to fail instead of killing other user space processes. Also, don't spam the kernel log with warnings should any of the allocations fail under pressure. Given that, we can make backend selection in bpf_map_area_alloc() generic, and convert all maps over to use this API for spots with potentially large allocation requests. Note, replacing the one kmalloc_array() is fine as overflow checks happen earlier in htab_map_alloc(), since it must also protect the multiplication for vmalloc() should kmalloc_array() fail. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-18lwtunnel: fix autoload of lwt modulesDavid Ahern
Trying to add an mpls encap route when the MPLS modules are not loaded hangs. For example: CONFIG_MPLS=y CONFIG_NET_MPLS_GSO=m CONFIG_MPLS_ROUTING=m CONFIG_MPLS_IPTUNNEL=m $ ip route add 10.10.10.10/32 encap mpls 100 via inet 10.100.1.2 The ip command hangs: root 880 826 0 21:25 pts/0 00:00:00 ip route add 10.10.10.10/32 encap mpls 100 via inet 10.100.1.2 $ cat /proc/880/stack [<ffffffff81065a9b>] call_usermodehelper_exec+0xd6/0x134 [<ffffffff81065efc>] __request_module+0x27b/0x30a [<ffffffff814542f6>] lwtunnel_build_state+0xe4/0x178 [<ffffffff814aa1e4>] fib_create_info+0x47f/0xdd4 [<ffffffff814ae451>] fib_table_insert+0x90/0x41f [<ffffffff814a8010>] inet_rtm_newroute+0x4b/0x52 ... modprobe is trying to load rtnl-lwt-MPLS: root 881 5 0 21:25 ? 00:00:00 /sbin/modprobe -q -- rtnl-lwt-MPLS and it hangs after loading mpls_router: $ cat /proc/881/stack [<ffffffff81441537>] rtnl_lock+0x12/0x14 [<ffffffff8142ca2a>] register_netdevice_notifier+0x16/0x179 [<ffffffffa0033025>] mpls_init+0x25/0x1000 [mpls_router] [<ffffffff81000471>] do_one_initcall+0x8e/0x13f [<ffffffff81119961>] do_init_module+0x5a/0x1e5 [<ffffffff810bd070>] load_module+0x13bd/0x17d6 ... The problem is that lwtunnel_build_state is called with rtnl lock held preventing mpls_init from registering. Given the potential references held by the time lwtunnel_build_state it can not drop the rtnl lock to the load module. So, extract the module loading code from lwtunnel_build_state into a new function to validate the encap type. The new function is called while converting the user request into a fib_config which is well before any table, device or fib entries are examined. Fixes: 745041e2aaf1 ("lwtunnel: autoload of lwt modules") Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-18Merge branch 'smp-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull SMP hotplug update from Thomas Gleixner: "This contains a trivial typo fix and an extension to the core code for dynamically allocating states in the prepare stage. The extension is necessary right now because we need a proper way to unbreak LTTNG, which iscurrently non functional due to the removal of the notifiers. Surely it's out of tree, but it's widely used by distros. The simple solution would have been to reserve a state for LTTNG, but I'm not fond about unused crap in the kernel and the dynamic range, which we admittedly should have done right away, allows us to remove quite some of the hardcoded states, i.e. those which have no ordering requirements. So doing the right thing now is better than having an smaller intermediate solution which needs to be reworked anyway" * 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: cpu/hotplug: Provide dynamic range for prepare stage perf/x86/amd/ibs: Fix typo after cleanup state names in cpu/hotplug
2017-01-18Merge branch 'rcu-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU fixes from Ingo Molnar: "This fixes sporadic ACPI related hangs in synchronize_rcu() that were caused by the ACPI code mistakenly relying on an aspect of RCU that was neither promised to work nor reliable but which happened to work - until in v4.9 we changed the RCU implementation, which made the hangs more prominent. Since the mis-use of the RCU facility wasn't properly detected and prevented either, these fixes make the RCU side work reliably instead of working around the problem in the ACPI code. Hence the slightly larger diffstat that goes beyond the normal scope of RCU fixes in -rc kernels" * 'rcu-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: rcu: Narrow early boot window of illegal synchronous grace periods rcu: Remove cond_resched() from Tiny synchronize_sched()
2017-01-17Merge tag 'modules-for-v4.10-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux Pull modules fix from Jessica Yu: - fix out-of-tree module breakage when it supplies its own definitions of true and false * tag 'modules-for-v4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux: taint/module: Fix problems when out-of-kernel driver defines true or false
2017-01-17Merge remote-tracking branch 'mkp-scsi/fixes' into fixesJames Bottomley
2017-01-17virtio: don't set VIRTIO_NET_HDR_F_DATA_VALID on xmitRolf Neugebauer
This patch part reverts fd2a0437dc33 and e858fae2b0b8 which introduced a subtle change in how the virtio_net flags are derived from the SKBs ip_summed field. With the above commits, the flags are set to VIRTIO_NET_HDR_F_DATA_VALID when ip_summed == CHECKSUM_UNNECESSARY, thus treating it differently to ip_summed == CHECKSUM_NONE, which should be the same. Further, the virtio spec 1.0 / CS04 explicitly says that VIRTIO_NET_HDR_F_DATA_VALID must not be set by the driver. Fixes: fd2a0437dc33 ("virtio_net: introduce virtio_net_hdr_{from,to}_skb") Fixes: e858fae2b0b8 (" virtio_net: use common code for virtio_net_hdr and skb GSO conversion") Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-17taint/module: Fix problems when out-of-kernel driver defines true or falseLarry Finger
Commit 7fd8329ba502 ("taint/module: Clean up global and module taint flags handling") used the key words true and false as character members of a new struct. These names cause problems when out-of-kernel modules such as VirtualBox include their own definitions of true and false. Fixes: 7fd8329ba502 ("taint/module: Clean up global and module taint flags handling") Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Petr Mladek <pmladek@suse.com> Cc: Jessica Yu <jeyu@redhat.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Reported-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu> Reviewed-by: Petr Mladek <pmladek@suse.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Jessica Yu <jeyu@redhat.com>
2017-01-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Handle multicast packets properly in fast-RX path of mac80211, from Johannes Berg. 2) Because of a logic bug, the user can't actually force SW checksumming on r8152 devices. This makes diagnosis of hw checksumming bugs really annoying. Fix from Hayes Wang. 3) VXLAN route lookup does not take the source and destination ports into account, which means IPSEC policies cannot be matched properly. Fix from Martynas Pumputis. 4) Do proper RCU locking in netvsc callbacks, from Stephen Hemminger. 5) Fix SKB leaks in mlxsw driver, from Arkadi Sharshevsky. 6) If lwtunnel_fill_encap() fails, we do not abort the netlink message construction properly in fib_dump_info(), from David Ahern. 7) Do not use kernel stack for DMA buffers in atusb driver, from Stefan Schmidt. 8) Openvswitch conntack actions need to maintain a correct checksum, fix from Lance Richardson. 9) ax25_disconnect() is missing a check for ax25->sk being NULL, in fact it already checks this, but not in all of the necessary spots. Fix from Basil Gunn. 10) Action GET operations in the packet scheduler can erroneously bump the reference count of the entry, making it unreleasable. Fix from Jamal Hadi Salim. Jamal gives a great set of example command lines that trigger this in the commit message. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (46 commits) net sched actions: fix refcnt when GETing of action after bind net/mlx4_core: Eliminate warning messages for SRQ_LIMIT under SRIOV net/mlx4_core: Fix when to save some qp context flags for dynamic VST to VGT transitions net/mlx4_core: Fix racy CQ (Completion Queue) free net: stmmac: don't use netdev_[dbg, info, ..] before net_device is registered net/mlx5e: Fix a -Wmaybe-uninitialized warning ax25: Fix segfault after sock connection timeout bpf: rework prog_digest into prog_tag tipc: allocate user memory with GFP_KERNEL flag net: phy: dp83867: allow RGMII_TXID/RGMII_RXID interface types ip6_tunnel: Account for tunnel header in tunnel MTU mld: do not remove mld souce list info when set link down be2net: fix MAC addr setting on privileged BE3 VFs be2net: don't delete MAC on close on unprivileged BE3 VFs be2net: fix status check in be_cmd_pmac_add() cpmac: remove hopeless #warning ravb: do not use zero-length alignment DMA descriptor mlx4: do not call napi_schedule() without care openvswitch: maintain correct checksum state in conntrack actions tcp: fix tcp_fastopen unaligned access complaints on sparc ...
2017-01-17Merge tag 'kvm-arm-for-4.10-rc4' of ↵Radim Krčmář
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm KVM/ARM updates for 4.10-rc4 - Fix for timer setup on VHE machines - Drop spurious warning when the timer races against the vcpu running again - Prevent a vgic deadlock when the initialization fails
2017-01-16drm/fence: fix memory overwrite when setting out_fence fdGustavo Padovan
Currently if the userspace declares a int variable to store the out_fence fd and pass it to OUT_FENCE_PTR the kernel will overwrite the 32 bits above the int variable on 64 bits systems. Fix this by making the internal storage of out_fence in the kernel a s32 pointer. Reported-by: Chad Versace <chadversary@chromium.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com> Fixes: beaf5af48034 ("drm/fence: add out-fences support") Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Rafael Antognolli <rafael.antognolli@intel.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-and-Tested-by: Chad Versace <chadversary@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/1484317329-9293-1-git-send-email-gustavo@padovan.org
2017-01-16scsi: libfc: Fix variable name in fc_set_wwpnFam Zheng
The parameter name should be wwpn instead of wwnn. Signed-off-by: Fam Zheng <famz@redhat.com> Acked-by: Johannes Thumshirn <jth@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-01-16bpf: rework prog_digest into prog_tagDaniel Borkmann
Commit 7bd509e311f4 ("bpf: add prog_digest and expose it via fdinfo/netlink") was recently discussed, partially due to admittedly suboptimal name of "prog_digest" in combination with sha1 hash usage, thus inevitably and rightfully concerns about its security in terms of collision resistance were raised with regards to use-cases. The intended use cases are for debugging resp. introspection only for providing a stable "tag" over the instruction sequence that both kernel and user space can calculate independently. It's not usable at all for making a security relevant decision. So collisions where two different instruction sequences generate the same tag can happen, but ideally at a rather low rate. The "tag" will be dumped in hex and is short enough to introspect in tracepoints or kallsyms output along with other data such as stack trace, etc. Thus, this patch performs a rename into prog_tag and truncates the tag to a short output (64 bits) to make it obvious it's not collision-free. Should in future a hash or facility be needed with a security relevant focus, then we can think about requirements, constraints, etc that would fit to that situation. For now, rework the exposed parts for the current use cases as long as nothing has been released yet. Tested on x86_64 and s390x. Fixes: 7bd509e311f4 ("bpf: add prog_digest and expose it via fdinfo/netlink") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Cc: Andy Lutomirski <luto@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-16Merge tag 'nfsd-4.10-1' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
Pull nfsd fixes from Bruce Fields: "Miscellaneous nfsd bugfixes, one for a 4.10 regression, three for older bugs" * tag 'nfsd-4.10-1' of git://linux-nfs.org/~bfields/linux: svcrdma: avoid duplicate dma unmapping during error recovery sunrpc: don't call sleeping functions from the notifier block callbacks svcrpc: don't leak contexts on PROC_DESTROY nfsd: fix supported attributes for acl & labels
2017-01-16netfilter: rpfilter: fix incorrect loopback packet judgmentLiping Zhang
Currently, we check the existing rtable in PREROUTING hook, if RTCF_LOCAL is set, we assume that the packet is loopback. But this assumption is incorrect, for example, a packet encapsulated in ipsec transport mode was received and routed to local, after decapsulation, it would be delivered to local again, and the rtable was not dropped, so RTCF_LOCAL check would trigger. But actually, the packet was not loopback. So for these normal loopback packets, we can check whether the in device is IFF_LOOPBACK or not. For these locally generated broadcast/multicast, we can check whether the skb->pkt_type is PACKET_LOOPBACK or not. Finally, there's a subtle difference between nft fib expr and xtables rpfilter extension, user can add the following nft rule to do strict rpfilter check: # nft add rule x y meta iif eth0 fib saddr . iif oif != eth0 drop So when the packet is loopback, it's better to store the in device instead of the LOOPBACK_IFINDEX, otherwise, after adding the above nft rule, locally generated broad/multicast packets will be dropped incorrectly. Fixes: f83a7ea2075c ("netfilter: xt_rpfilter: skip locally generated broadcast/multicast, too") Fixes: f6d0cbcf09c5 ("netfilter: nf_tables: add fib expression") Signed-off-by: Liping Zhang <zlpnobody@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-01-16netfilter: nf_tables: fix spelling mistakesAlexander Alemayhu
o s/numerice/numeric o s/opertaor/operator Signed-off-by: Alexander Alemayhu <alexander@alemayhu.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-01-16cpu/hotplug: Provide dynamic range for prepare stageThomas Gleixner
Mathieu reported that the LTTNG modules are broken as of 4.10-rc1 due to the removal of the cpu hotplug notifiers. Usually I don't care much about out of tree modules, but LTTNG is widely used in distros. There are two ways to solve that: 1) Reserve a hotplug state for LTTNG 2) Add a dynamic range for the prepare states. While #1 is the simplest solution, #2 is the proper one as we can convert in tree users, which do not care about ordering, to the dynamic range as well. Add a dynamic range which allows LTTNG to request states in the prepare stage. Reported-and-tested-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Sewior <bigeasy@linutronix.de> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701101353010.3401@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-01-16Merge branch 'rcu/urgent' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into rcu/urgent Pull an urgent RCU fix from Paul E. McKenney: "This series contains a pair of commits that permit RCU synchronous grace periods (synchronize_rcu() and friends) to work correctly throughout boot. This eliminates the current "dead time" starting when the scheduler spawns its first taks and ending when the last of RCU's kthreads is spawned (this last happens during early_initcall() time). Although RCU's synchronous grace periods have long been documented as not working during this time, prior to 4.9, the expedited grace periods worked by accident, and some ACPI code came to rely on this unintentional behavior. (Note that this unintentional behavior was -not- reliable. For example, failures from ACPI could occur on !SMP systems and on systems booting with the rcu_normal kernel boot parameter.) Either way, there is a bug that needs fixing, and the 4.9 switch of RCU's expedited grace periods to workqueues could be considered to have caused a regression. This series therefore makes RCU's expedited grace periods operate correctly throughout the boot process. This has been demonstrated to fix the problems ACPI was encountering, and has the added longer-term benefit of simplifying RCU's behavior." Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-01-15Merge tag 'mac80211-for-davem-2017-01-13' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes Berg says: ==================== We have a number of fixes, in part because I was late in actually sending them out - will try to do better in the future: * handle VHT opmode properly when hostapd is controlling full station state * two fixes for minimum channel width in mac80211 * don't leave SMPS set to junk in HT capabilities * fix headroom when forwarding mesh packets, recently broken by another fix that failed to take into account frame encryption * fix the TID in null-data packets indicating EOSP (end of service period) in U-APSD * prevent attempting to use (and then failing which results in crashes) TXQs on stations that aren't added to the driver yet ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-15Merge branch 'i2c/for-current' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "Bugfixes for I2C. Mostly core this time which is a bit unusual but nothing really scary in there" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: piix4: Avoid race conditions with IMC i2c: fix spelling mistake: "insufficent" -> "insufficient" i2c: print correct device invalid address i2c: do not enable fall back to Host Notify by default i2c: fix kernel memory disclosure in dev interface
2017-01-15Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Misc race fixes uncovered by fuzzing efforts, a Sparse fix, two PMU driver fixes, plus miscellanous tooling fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86: Reject non sampling events with precise_ip perf/x86/intel: Account interrupts for PEBS errors perf/core: Fix concurrent sys_perf_event_open() vs. 'move_group' race perf/core: Fix sys_perf_event_open() vs. hotplug perf/x86/intel: Use ULL constant to prevent undefined shift behaviour perf/x86/intel/uncore: Fix hardcoded socket 0 assumption in the Haswell init code perf/x86: Set pmu->module in Intel PMU modules perf probe: Fix to probe on gcc generated symbols for offline kernel perf probe: Fix --funcs to show correct symbols for offline module perf symbols: Robustify reading of build-id from sysfs perf tools: Install tools/lib/traceevent plugins with install-bin tools lib traceevent: Fix prev/next_prio for deadline tasks perf record: Fix --switch-output documentation and comment perf record: Make __record_options static tools lib subcmd: Add OPT_STRING_OPTARG_SET option perf probe: Fix to get correct modname from elf header samples/bpf trace_output_user: Remove duplicate sys/ioctl.h include samples/bpf sock_example: Avoid getting ethhdr from two includes perf sched timehist: Show total scheduling time
2017-01-15Merge branch 'efi-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull EFI fixes from Ingo Molnar: "A number of regression fixes: - Fix a boot hang on machines that have somewhat unusual memory map entries of phys_addr=0x0 num_pages=0, which broke due to a recent commit. This commit got cherry-picked from the v4.11 queue because the bug is affecting real machines. - Fix a boot hang also reported by KASAN, caused by incorrect init ordering introduced by a recent optimization. - Fix a recent robustification fix to allocate_new_fdt_and_exit_boot() that introduced an invalid assumption. Neither bugs were seen in the wild AFAIK" * 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi/x86: Prune invalid memory map entries and fix boot regression x86/efi: Don't allocate memmap through memblock after mm_init() efi/libstub/arm*: Pass latest memory map to the kernel
2017-01-14rcu: Narrow early boot window of illegal synchronous grace periodsPaul E. McKenney
The current preemptible RCU implementation goes through three phases during bootup. In the first phase, there is only one CPU that is running with preemption disabled, so that a no-op is a synchronous grace period. In the second mid-boot phase, the scheduler is running, but RCU has not yet gotten its kthreads spawned (and, for expedited grace periods, workqueues are not yet running. During this time, any attempt to do a synchronous grace period will hang the system (or complain bitterly, depending). In the third and final phase, RCU is fully operational and everything works normally. This has been OK for some time, but there has recently been some synchronous grace periods showing up during the second mid-boot phase. This code worked "by accident" for awhile, but started failing as soon as expedited RCU grace periods switched over to workqueues in commit 8b355e3bc140 ("rcu: Drive expedited grace periods from workqueue"). Note that the code was buggy even before this commit, as it was subject to failure on real-time systems that forced all expedited grace periods to run as normal grace periods (for example, using the rcu_normal ksysfs parameter). The callchain from the failure case is as follows: early_amd_iommu_init() |-> acpi_put_table(ivrs_base); |-> acpi_tb_put_table(table_desc); |-> acpi_tb_invalidate_table(table_desc); |-> acpi_tb_release_table(...) |-> acpi_os_unmap_memory |-> acpi_os_unmap_iomem |-> acpi_os_map_cleanup |-> synchronize_rcu_expedited The kernel showing this callchain was built with CONFIG_PREEMPT_RCU=y, which caused the code to try using workqueues before they were initialized, which did not go well. This commit therefore reworks RCU to permit synchronous grace periods to proceed during this mid-boot phase. This commit is therefore a fix to a regression introduced in v4.9, and is therefore being put forward post-merge-window in v4.10. This commit sets a flag from the existing rcu_scheduler_starting() function which causes all synchronous grace periods to take the expedited path. The expedited path now checks this flag, using the requesting task to drive the expedited grace period forward during the mid-boot phase. Finally, this flag is updated by a core_initcall() function named rcu_exp_runtime_mode(), which causes the runtime codepaths to be used. Note that this arrangement assumes that tasks are not sent POSIX signals (or anything similar) from the time that the first task is spawned through core_initcall() time. Fixes: 8b355e3bc140 ("rcu: Drive expedited grace periods from workqueue") Reported-by: "Zheng, Lv" <lv.zheng@intel.com> Reported-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Tested-by: Stan Kain <stan.kain@gmail.com> Tested-by: Ivan <waffolz@hotmail.com> Tested-by: Emanuel Castelo <emanuel.castelo@gmail.com> Tested-by: Bruno Pesavento <bpesavento@infinito.it> Tested-by: Borislav Petkov <bp@suse.de> Tested-by: Frederic Bezies <fredbezies@gmail.com> Cc: <stable@vger.kernel.org> # 4.9.0-
2017-01-14Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs fixes from Al Viro. The most notable fix here is probably the fix for a splice regression ("fix a fencepost error in pipe_advance()") noticed by Alan Wylie. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fix a fencepost error in pipe_advance() coredump: Ensure proper size of sparse core files aio: fix lock dep warning tmpfs: clear S_ISGID when setting posix ACLs
2017-01-14Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: - the virtio_blk stack DMA corruption fix from Christoph, fixing and issue with VMAP stacks. - O_DIRECT blkbits calculation fix from Chandan. - discard regression fix from Christoph. - queue init error handling fixes for nbd and virtio_blk, from Omar and Jeff. - two small nvme fixes, from Christoph and Guilherme. - rename of blk_queue_zone_size and bdev_zone_size to _sectors instead, to more closely follow what we do in other places in the block layer. This interface is new for this series, so let's get the naming right before releasing a kernel with this feature. From Damien. * 'for-linus' of git://git.kernel.dk/linux-block: block: don't try to discard from __blkdev_issue_zeroout sd: remove __data_len hack for WRITE SAME nvme: use blk_rq_payload_bytes scsi: use blk_rq_payload_bytes block: add blk_rq_payload_bytes block: Rename blk_queue_zone_size and bdev_zone_size nvme: apply DELAY_BEFORE_CHK_RDY quirk at probe time too nvme-rdma: fix nvme_rdma_queue_is_ready virtio_blk: fix panic in initialization error path nbd: blk_mq_init_queue returns an error code on failure, not NULL virtio_blk: avoid DMA to stack for the sense buffer do_direct_IO: Use inode->i_blkbits to compute block count to be cleaned
2017-01-14coredump: Ensure proper size of sparse core filesDave Kleikamp
If the last section of a core file ends with an unmapped or zero page, the size of the file does not correspond with the last dump_skip() call. gdb complains that the file is truncated and can be confusing to users. After all of the vma sections are written, make sure that the file size is no smaller than the current file position. This problem can be demonstrated with gdb's bigcore testcase on the sparc architecture. Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>