- 06 Apr, 2017 3 commits
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Benjamin Tissoires authored
Simple check to add, huge improvement :) Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Tested-by: Bastien Nocera <hadess@hadess.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Bastien Nocera authored
Without a scope defined, UPower assumes that the battery provides power to the computer it's connected to, like a laptop battery or a UPS. Tested-by: Peter Hutterer <peter.hutterer@who-t.net> Signed-off-by: Bastien Nocera <hadess@hadess.net> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Tested-by: Bastien Nocera <hadess@hadess.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Benjamin Tissoires authored
Register 0xB5 should be handled specially no matter what function is used. This allows to retrieve the serial and the Quad ID from hid-logitech-hidpp directly. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Tested-by: Bastien Nocera <hadess@hadess.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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- 12 Jul, 2016 1 commit
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Arnd Bergmann authored
A recent commit added barry support to this driver, but that causes a link failure when CONFIG_POWER_SUPPLY is not set: drivers/hid/built-in.o: In function `hidpp_battery_get_property': :(.text+0x1a834): undefined reference to `power_supply_get_drvdata' drivers/hid/built-in.o: In function `hidpp_raw_event': :(.text+0x1b10c): undefined reference to `power_supply_changed' drivers/hid/built-in.o: In function `hidpp_connect_event': :(.text+0x1bd88): undefined reference to `devm_power_supply_register' :(.text+0x1be30): undefined reference to `power_supply_powers' This adds a dependency, identically to the other HID drivers that need this. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Fixes: 5a2b190c ("HID: logitech-hidpp: add battery support for HID++ 2.0 devices") Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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- 07 Jul, 2016 2 commits
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Benjamin Tissoires authored
Now that we can create battery power_supply sources, it's better to enable the connect_event callback unconditionally. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Tested-by: Peter Hutterer <peter.hutterer@who-t.net> Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Peter Hutterer authored
If the 0x1000 Unified Battery Level Status feature exists, expose the battery level. The main drawback is that while a device is plugged in its battery level is 0. To avoid exposing that as 0% charge we make up a number based on the charging status. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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- 28 Jun, 2016 5 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hidLinus Torvalds authored
Pull HID fix from Jiri Kosina: "Regression fix for multitouch palm rejection from Allen Hung" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: multitouch: enable palm rejection for Windows Precision Touchpad Revert "HID: multitouch: enable palm rejection if device implements confidence usage"
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Allen Hung authored
The usage Confidence is mandary to Windows Precision Touchpad devices. If it is examined in input_mapping on a WIndows Precision Touchpad, a new add quirk MT_QUIRK_CONFIDENCE desgned for such devices will be applied to the device. A touch with the confidence bit is not set is determined as invalid. Tested on Dell XPS13 9343 Cc: stable@vger.kernel.org # v4.5+ Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Tested-by: Andy Lutomirski <luto@kernel.org> # XPS 13 9350, BIOS 1.4.3 Signed-off-by: Allen Hung <allen_hung@dell.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Allen Hung authored
This reverts commit 25a84db1 ("HID: multitouch: enable palm rejection if device implements confidence usage") The commit enables palm rejection for Win8 Precision Touchpad devices but the quirk MT_QUIRK_VALID_IS_CONFIDENCE it is using is not working very properly. This quirk is originally designed for some WIn7 touchscreens. Use of this for a Win8 Precision Touchpad will cause unexpected pointer jumping problem. Cc: stable@vger.kernel.org # v4.5+ Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Tested-by: Andy Lutomirski <luto@kernel.org> # XPS 13 9350, BIOS 1.4.3 Signed-off-by: Allen Hung <allen_hung@dell.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supplyLinus Torvalds authored
Pull power supply fixes from Sebastian Reichel. * tag 'for-v4.7-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: power_supply: tps65217-charger: Fix NULL deref during property export power_supply: power_supply_read_temp only if use_cnt > 0
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds authored
Pull input fixes from Dmitry Torokhov. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: vmmouse - remove port reservation Input: elantech - add more IC body types to the list Input: wacom_w8001 - ignore invalid pen data packets Input: wacom_w8001 - w8001_MAX_LENGTH should be 13 Input: xpad - fix oops when attaching an unknown Xbox One gamepad MAINTAINERS: add Pali Rohár as reviewer of ALPS PS/2 touchpad driver Input: add HDMI CEC specific keycodes Input: add BUS_CEC type Input: xpad - fix rumble on Xbox One controllers with 2015 firmware
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- 27 Jun, 2016 4 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuildLinus Torvalds authored
Pull kbuild regression fix from Michal Marek: "The problem is that commit 9c8fa9bc ("kbuild: fix if_change and friends to consider argument order") fixed a potential missed rebuild, but this results in unnnecessary rebuilds with the packaging targets. Which is still more correct than the previous logic, but also very annoying" * 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kbuild: Initialize exported variables
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git://git.samba.org/sfrench/cifs-2.6Linus Torvalds authored
Pull cifs fixes from Steve French: "Various small cifs/smb3 fixes, include some for stable, and some from the recent SMB3 test event" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: File names with trailing period or space need special case conversion Fix reconnect to not defer smb3 session reconnect long after socket reconnect cifs: check hash calculating succeeded cifs: dynamic allocation of ntlmssp blob cifs: use CIFS_MAX_DOMAINNAME_LEN when converting the domain name cifs: stuff the fl_owner into "pid" field in the lock request
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds authored
Pull crypto fixes from Herbert Xu: "This fixes the following issues: - Missing length check for user-space GETALG request - Bogus memmove length in ux500 driver - Incorrect priority setting for vmx driver - Incorrect ABI selection for vmx driver" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: user - re-add size check for CRYPTO_MSG_GETALG crypto: ux500 - memmove the right size crypto: vmx - Increase priority of aes-cbc cipher crypto: vmx - Fix ABI detection
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Linus Torvalds authored
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- 26 Jun, 2016 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull SCSI fixes from James Bottomley: "Two straightforward fixes. One is a concurrency issue only affecting SAS connected SATA drives, but which could hang the storage subsystem if it triggers (because the outstanding command count on error never goes back to zero) and the other is a NO_TAG fallout from the switch to hostwide tags which causes the system to crash on module insertion (we've checked carefully and only the 53c700 family of drivers is vulnerable to this issue)" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: 53c700: fix BUG on untagged commands scsi: fix race between simultaneous decrements of ->host_failed
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- 25 Jun, 2016 24 commits
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Linus Torvalds authored
Merge branch 'for-linus-4.7-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs Pull btrfs fixes part 2 from Chris Mason: "This has one patch from Omar to bring iterate_shared back to btrfs. We have a tree of work we queue up for directory items and it doesn't lend itself well to shared access. While we're cleaning it up, Omar has changed things to use an exclusive lock when there are delayed items" * 'for-linus-4.7-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: fix ->iterate_shared() by upgrading i_rwsem for delayed nodes
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfsLinus Torvalds authored
Pull btrfs fixes from Chris Mason: "I have a two part pull this time because one of the patches Dave Sterba collected needed to be against v4.7-rc2 or higher (we used rc4). I try to make my for-linus-xx branch testable on top of the last major so we can hand fixes to people on the list more easily, so I've split this pull in two. This first part has some fixes and two performance improvements that we've been testing for some time. Josef's two performance fixes are most notable. The transid tracking patch makes a big improvement on pretty much every workload" * 'for-linus-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: Force stripesize to the value of sectorsize btrfs: fix disk_i_size update bug when fallocate() fails Btrfs: fix error handling in map_private_extent_buffer Btrfs: fix error return code in btrfs_init_test_fs() Btrfs: don't do nocow check unless we have to btrfs: fix deadlock in delayed_ref_async_start Btrfs: track transid for delayed ref flushing
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound fixes from Takashi Iwai: "Again pretty calm weeks: we've had only a few trivial / stable HD-audio fixes in addition to a possible race fix for snd-dummy driver spotted by syzkaller" * tag 'sound-4.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: dummy: Fix a use-after-free at closing ALSA: hda / realtek - add two more Thinkpad IDs (5050,5053) for tpt460 fixup ALSA: hda - Fix the headset mic jack detection on Dell machine ALSA: hda/tegra: iomem fixups for sparse warnings ALSA: hdac_regmap - fix the register access for runtime PM
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 kprobe fix from Thomas Gleixner: "A single fix clearing the TF bit when a fault is single stepped" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: kprobes/x86: Clear TF bit in fault on single-stepping
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler fixes from Thomas Gleixner: "A couple of scheduler fixes: - force watchdog reset while processing sysrq-w - fix a deadlock when enabling trace events in the scheduler - fixes to the throttled next buddy logic - fixes for the average accounting (missing serialization and underflow handling) - allow kernel threads for fallback to online but not active cpus" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/core: Allow kthreads to fall back to online && !active cpus sched/fair: Do not announce throttled next buddy in dequeue_task_fair() sched/fair: Initialize throttle_count for new task-groups lazily sched/fair: Fix cfs_rq avg tracking underflow kernel/sysrq, watchdog, sched/core: Reset watchdog on all CPUs while processing sysrq-w sched/debug: Fix deadlock when enabling sched events sched/fair: Fix post_init_entity_util_avg() serialization
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Omar Sandoval authored
Commit fe742fd4 ("Revert "btrfs: switch to ->iterate_shared()"") backed out the conversion to ->iterate_shared() for Btrfs because the delayed inode handling in btrfs_real_readdir() is racy. However, we can still do readdir in parallel if there are no delayed nodes. This is a temporary fix which upgrades the shared inode lock to an exclusive lock only when we have delayed items until we come up with a more complete solution. While we're here, rename the btrfs_{get,put}_delayed_items functions to make it very clear that they're just for readdir. Tested with xfstests and by doing a parallel kernel build: while make tinyconfig && make -j4 && git clean dqfx; do : done along with a bunch of parallel finds in another shell: while true; do for ((i=0; i<4; i++)); do find . >/dev/null & done wait done Signed-off-by: Omar Sandoval <osandov@fb.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Chris Mason <clm@fb.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull locking fix from Thomas Gleixner: "A single fix to address a race in the static key logic" * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/static_key: Fix concurrent static_key_slow_inc()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull irq fix from Thomas Gleixner: "A single fix for the fallout from the conversion of MIPS GIC to irq domains" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/mips-gic: Fix IRQs in gic_dev_domain
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc fixes from Michael Ellerman: "mm/radix (Aneesh Kumar K.V): - Update to tlb functions ric argument - Flush page walk cache when freeing page table - Update Radix tree size as per ISA 3.0 mm/hash (Aneesh Kumar K.V): - Use the correct PPP mask when updating HPTE - Don't add memory coherence if cache inhibited is set eeh (Gavin Shan): - Fix invalid cached PE primary bus bpf/jit (Naveen N. Rao): - Disable classic BPF JIT on ppc64le .. and fix faults caused by radix patching of SLB miss handler (Michael Ellerman)" * tag 'powerpc-4.7-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/bpf/jit: Disable classic BPF JIT on ppc64le powerpc: Fix faults caused by radix patching of SLB miss handler powerpc/eeh: Fix invalid cached PE primary bus powerpc/mm/radix: Update Radix tree size as per ISA 3.0 powerpc/mm/hash: Don't add memory coherence if cache inhibited is set powerpc/mm/hash: Use the correct PPP mask when updating HPTE powerpc/mm/radix: Flush page walk cache when freeing page table powerpc/mm/radix: Update to tlb functions ric argument
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Michael Ellerman authored
Commit b235beea ("Clarify naming of thread info/stack allocators") breaks the build on some powerpc configs, where THREAD_SIZE < PAGE_SIZE: kernel/fork.c:235:2: error: implicit declaration of function 'free_thread_stack' kernel/fork.c:355:8: error: assignment from incompatible pointer type stack = alloc_thread_stack_node(tsk, node); ^ Fix it by renaming free_stack() to free_thread_stack(), and updating the return type of alloc_thread_stack_node(). Fixes: b235beea ("Clarify naming of thread info/stack allocators") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds authored
Merge misc fixes from Andrew Morton: "Two weeks worth of fixes here" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (41 commits) init/main.c: fix initcall_blacklisted on ia64, ppc64 and parisc64 autofs: don't get stuck in a loop if vfs_write() returns an error mm/page_owner: avoid null pointer dereference tools/vm/slabinfo: fix spelling mistake: "Ocurrences" -> "Occurrences" fs/nilfs2: fix potential underflow in call to crc32_le oom, suspend: fix oom_reaper vs. oom_killer_disable race ocfs2: disable BUG assertions in reading blocks mm, compaction: abort free scanner if split fails mm: prevent KASAN false positives in kmemleak mm/hugetlb: clear compound_mapcount when freeing gigantic pages mm/swap.c: flush lru pvecs on compound page arrival memcg: css_alloc should return an ERR_PTR value on error memcg: mem_cgroup_migrate() may be called with irq disabled hugetlb: fix nr_pmds accounting with shared page tables Revert "mm: disable fault around on emulated access bit architecture" Revert "mm: make faultaround produce old ptes" mailmap: add Boris Brezillon's email mailmap: add Antoine Tenart's email mm, sl[au]b: add __GFP_ATOMIC to the GFP reclaim mask mm: mempool: kasan: don't poot mempool objects in quarantine ...
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git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdmaLinus Torvalds authored
Pull rdma fixes from Doug Ledford: "This is the second batch of queued up rdma patches for this rc cycle. There isn't anything really major in here. It's passed 0day, linux-next, and local testing across a wide variety of hardware. There are still a few known issues to be tracked down, but this should amount to the vast majority of the rdma RC fixes. Round two of 4.7 rc fixes: - A couple minor fixes to the rdma core - Multiple minor fixes to hfi1 - Multiple minor fixes to mlx4/mlx4 - A few minor fixes to i40iw" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (31 commits) IB/srpt: Reduce QP buffer size i40iw: Enable level-1 PBL for fast memory registration i40iw: Return correct max_fast_reg_page_list_len i40iw: Correct status check on i40iw_get_pble i40iw: Correct CQ arming IB/rdmavt: Correct qp_priv_alloc() return value test IB/hfi1: Don't zero out qp->s_ack_queue in rvt_reset_qp IB/hfi1: Fix deadlock with txreq allocation slow path IB/mlx4: Prevent cross page boundary allocation IB/mlx4: Fix memory leak if QP creation failed IB/mlx4: Verify port number in flow steering create flow IB/mlx4: Fix error flow when sending mads under SRIOV IB/mlx4: Fix the SQ size of an RC QP IB/mlx5: Fix wrong naming of port_rcv_data counter IB/mlx5: Fix post send fence logic IB/uverbs: Initialize ib_qp_init_attr with zeros IB/core: Fix false search of the IB_SA_WELL_KNOWN_GUID IB/core: Fix RoCE v1 multicast join logic issue IB/core: Fix no default GIDs when netdevice reregisters IB/hfi1: Send a pkey change event on driver pkey update ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hidLinus Torvalds authored
Pull HID fix from Jiri Kosina: "hiddev ioctl() validation fix from Scott Bauer" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: hiddev: validate num_values for HIDIOCGUSAGES, HIDIOCSUSAGES commands
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Linus Torvalds authored
Merge tag 'hwmon-for-linus-v4.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon fix from Guenter Roeck: "Improve fan type detection for dell-smm to prevent kernel hang" * tag 'hwmon-for-linus-v4.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (dell-smm) Cache fan_type() calls and change fan detection
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull ACPI fix from Rafael Wysocki: "Stable-candidate fix for a deadlock in ACPICA introduced during the 4.5 development cycle by a commit attempting to improve the handling of AML code that doesn't belong to any namespace objects in a given definition block (Lv Zheng)" * tag 'acpi-4.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPICA: Namespace: Fix deadlock triggered by MLC support in dynamic table loading
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull power management fixes from Rafael Wysocki: "Fix for a latent cpufreq driver bug uncovered by a recent ACPICA change and several fixes for the devfreq framework, including one fix for an issue introduced recently. Specifics: - Fix a latent initialization issue in the pcc-cpufreq driver (incorrect initial value of a structure field) that has been uncovered by a recent ACPICA commit (Mike Galbraith). - Add a missing notification in an update_devfreq() error code path forgotten by a recent devfreq commit (Chanwoo Choi). - Fix devfreq device frequency initialization (Lukasz Luba). - Fix an incorrect IS_ERR() check in the devfreq framework discovered by the Smatch checker (Dan Carpenter). - Drop two excessive put_device() calls from the devfreq framework (MyungJoo Ham, Cai Zhiyong). - Fix a possible memory leak in the devfreq framework and drop an unnecessary kfree() invocation from it (MyungJoo Ham)" * tag 'pm-4.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM / devfreq: Send the DEVFREQ_POSTCHANGE notification when target() is failed cpufreq: pcc-cpufreq: Fix doorbell.access_width PM / devfreq: fix initialization of current frequency in last status PM / devfreq: exynos-nocp: Remove incorrect IS_ERR() check PM / devfreq: remove double put_device PM / devfreq: fix double call put_device PM / devfreq: fix duplicated kfree on devfreq pointer PM / devfreq: devm_kzalloc to have dev pointer more precisely
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tipLinus Torvalds authored
Pull xen bug fixes from David Vrabel: - fix x86 PV dom0 crash during early boot on some hardware - fix two pciback bugs affects certain devices - fix potential overflow when clearing page tables in x86 PV * tag 'for-linus-4.7b-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen-pciback: return proper values during BAR sizing x86/xen: avoid m2p lookup when setting early page table entries xen/pciback: Fix conf_space read/write overlap check. x86/xen: fix upper bound of pmd loop in xen_cleanhighmap() xen/balloon: Fix declared-but-not-defined warning
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull arm64 fixes from Will Deacon: "Here are a few more arm64 fixes, but things do finally appear to be slowing down. The main fix is avoiding hibernation in a previously unanticipated situation where we have CPUs parked in the kernel, but it's all good stuff. - Fix icache/dcache sync for anonymous pages under migration - Correct the ASID limit check - Fix parallel builds of Image and Image.gz - Refuse to hibernate when we have CPUs that we can't offline" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: hibernate: Don't hibernate on systems with stuck CPUs arm64: smp: Add function to determine if cpus are stuck in the kernel arm64: mm: remove page_mapping check in __sync_icache_dcache arm64: fix boot image dependencies to not generate invalid images arm64: update ASID limit
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Rasmus Villemoes authored
When I replaced kasprintf("%pf") with a direct call to sprint_symbol_no_offset I must have broken the initcall blacklisting feature on the arches where dereference_function_descriptor() is non-trivial. Fixes: c8cdd2be (init/main.c: simplify initcall_blacklisted()) Link: http://lkml.kernel.org/r/1466027283-4065-1-git-send-email-linux@rasmusvillemoes.dkSigned-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Yang Shi <yang.shi@linaro.org> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Petr Mladek <pmladek@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Andrey Vagin authored
__vfs_write() returns a negative value in a error case. Link: http://lkml.kernel.org/r/20160616083108.6278.65815.stgit@pluto.themaw.netSigned-off-by: Andrey Vagin <avagin@openvz.org> Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Sudip Mukherjee authored
We have dereferenced page_ext before checking it. Lets check it first and then used it. Fixes: f86e4271 ("mm: check the return value of lookup_page_ext for all call sites") Link: http://lkml.kernel.org/r/1465249059-7883-1-git-send-email-sudipm.mukherjee@gmail.comSigned-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Colin Ian King authored
trivial fix to spelling mistake Link: http://lkml.kernel.org/r/1466672144-831-1-git-send-email-colin.king@canonical.comSigned-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Christoph Lameter <cl@linux.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Torsten Hilbrich authored
The value `bytes' comes from the filesystem which is about to be mounted. We cannot trust that the value is always in the range we expect it to be. Check its value before using it to calculate the length for the crc32_le call. It value must be larger (or equal) sumoff + 4. This fixes a kernel bug when accidentially mounting an image file which had the nilfs2 magic value 0x3434 at the right offset 0x406 by chance. The bytes 0x01 0x00 were stored at 0x408 and were interpreted as a s_bytes value of 1. This caused an underflow when substracting sumoff + 4 (20) in the call to crc32_le. BUG: unable to handle kernel paging request at ffff88021e600000 IP: crc32_le+0x36/0x100 ... Call Trace: nilfs_valid_sb.part.5+0x52/0x60 [nilfs2] nilfs_load_super_block+0x142/0x300 [nilfs2] init_nilfs+0x60/0x390 [nilfs2] nilfs_mount+0x302/0x520 [nilfs2] mount_fs+0x38/0x160 vfs_kern_mount+0x67/0x110 do_mount+0x269/0xe00 SyS_mount+0x9f/0x100 entry_SYSCALL_64_fastpath+0x16/0x71 Link: http://lkml.kernel.org/r/1466778587-5184-2-git-send-email-konishi.ryusuke@lab.ntt.co.jpSigned-off-by: Torsten Hilbrich <torsten.hilbrich@secunet.com> Tested-by: Torsten Hilbrich <torsten.hilbrich@secunet.com> Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Michal Hocko authored
Tetsuo has reported the following potential oom_killer_disable vs. oom_reaper race: (1) freeze_processes() starts freezing user space threads. (2) Somebody (maybe a kenrel thread) calls out_of_memory(). (3) The OOM killer calls mark_oom_victim() on a user space thread P1 which is already in __refrigerator(). (4) oom_killer_disable() sets oom_killer_disabled = true. (5) P1 leaves __refrigerator() and enters do_exit(). (6) The OOM reaper calls exit_oom_victim(P1) before P1 can call exit_oom_victim(P1). (7) oom_killer_disable() returns while P1 not yet finished (8) P1 perform IO/interfere with the freezer. This situation is unfortunate. We cannot move oom_killer_disable after all the freezable kernel threads are frozen because the oom victim might depend on some of those kthreads to make a forward progress to exit so we could deadlock. It is also far from trivial to teach the oom_reaper to not call exit_oom_victim() because then we would lose a guarantee of the OOM killer and oom_killer_disable forward progress because exit_mm->mmput might block and never call exit_oom_victim. It seems the easiest way forward is to workaround this race by calling try_to_freeze_tasks again after oom_killer_disable. This will make sure that all the tasks are frozen or it bails out. Fixes: 449d777d ("mm, oom_reaper: clear TIF_MEMDIE for all tasks queued for oom_reaper") Link: http://lkml.kernel.org/r/1466597634-16199-1-git-send-email-mhocko@kernel.orgSigned-off-by: Michal Hocko <mhocko@suse.com> Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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