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* acpi-drivers:
ACPI / DPTF: move int340x_thermal.c to the DPTF folder
ACPI / DPTF: Add DPTF power participant driver
* acpi-misc:
ACPI / lpat: make it explicitly non-modular
ACPI / dock: make dock explicitly non-modular
* acpi-tools:
tools/acpi: use CROSS_COMPILE to define prefix
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* acpi-pmic:
ACPI / PMIC: remove modular references from non-modular code
ACPI / PMIC: intel: initialize result to 0
ACPI / PMIC: intel: add REGS operation region support
ACPI / PMIC: Add opregion driver for Intel BXT WhiskeyCove PMIC
ACPI / PMIC: modify the pen function signature to take bit field
Conflicts:
drivers/acpi/Makefile
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* acpi-processor:
ACPI: enable ACPI_PROCESSOR_IDLE on ARM64
arm64: add support for ACPI Low Power Idle(LPI)
drivers: firmware: psci: initialise idle states using ACPI LPI
cpuidle: introduce CPU_PM_CPU_IDLE_ENTER macro for ARM{32, 64}
arm64: cpuidle: drop __init section marker to arm_cpuidle_init
ACPI / processor_idle: Add support for Low Power Idle(LPI) states
ACPI / processor_idle: introduce ACPI_PROCESSOR_CSTATE
* acpi-cppc:
mailbox: pcc: Add PCC request and free channel declarations
ACPI / CPPC: Prevent cpc_desc_ptr points to the invalid data
ACPI: CPPC: Return error if _CPC is invalid on a CPU
* acpi-apei:
ACPI / APEI: Add Boot Error Record Table (BERT) support
ACPI / einj: Make error paths more talkative
ACPI / einj: Convert EINJ_PFX to proper pr_fmt
* acpi-sleep:
ACPI: Execute _PTS before system reboot
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* acpi-ec:
ACPI / EC: Remove wrong ECDT correction quirks
ACPI / EC: Cleanup boot EC code using acpi_ec_alloc()
* acpi-video:
ACPI / video: Dummy acpi_video_register should return error code
ACPI / video: skip evaluating _DOD when it does not exist
ACPI / video: Thinkpad X201 Tablet needs video_detect_force_video
* acpi-button:
ACPI / button: Add quirks for initial lid state notification
ACPI / button: Refactor functions to eliminate redundant code
ACPI / button: Remove initial lid state notification
* acpi-thermal:
ACPI / thermal: Remove create_workqueue()
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* acpi-bus:
ACPI / bus: Support for platform initiated graceful shutdown
ACPI / bus: Correct the comments about acpi_subsystem_init()
ACPI / bus: Use acpi_handle_debug() in acpi_print_osc_error()
* acpi-pci:
ACPI / PCI: make pci_slot explicitly non-modular
ACPI / PCI: pci_slot: Use generic pr_debug utility
ACPI / PCI: pci_slot: Use more common logging style
* acpica:
ACPICA: Linux: Enable ACPI_MUTEX_DEBUG for Linux kernel
* acpi-doc:
ACPI / debugger: Add AML debugger documentation
ACPI: Add documentation describing ACPICA release automation
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* acpi-tables:
ACPI: Rename configfs.c to acpi_configfs.c to prevent link error
ACPI: add support for loading SSDTs via configfs
ACPI: add support for configfs
efi / ACPI: load SSTDs from EFI variables
spi / ACPI: add support for ACPI reconfigure notifications
i2c / ACPI: add support for ACPI reconfigure notifications
ACPI: add support for ACPI reconfiguration notifiers
ACPI / scan: fix enumeration (visited) flags for bus rescans
ACPI / documentation: add SSDT overlays documentation
ACPI: ARM64: support for ACPI_TABLE_UPGRADE
ACPI / tables: introduce ARCH_HAS_ACPI_TABLE_UPGRADE
ACPI / tables: move arch-specific symbol to asm/acpi.h
ACPI / tables: table upgrade: refactor function definitions
ACPI / tables: table upgrade: use cacheable map for tables
Conflicts:
arch/arm64/include/asm/acpi.h
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* acpi-numa:
ACPI / NUMA: Enable ACPI based NUMA on ARM64
arm64, ACPI, NUMA: NUMA support based on SRAT and SLIT
ACPI / processor: Add acpi_map_madt_entry()
ACPI / NUMA: Improve SRAT error detection and add messages
ACPI / NUMA: Move acpi_numa_memory_affinity_init() to drivers/acpi/numa.c
ACPI / NUMA: remove unneeded acpi_numa=1
ACPI / NUMA: move bad_srat() and srat_disabled() to drivers/acpi/numa.c
x86 / ACPI / NUMA: cleanup acpi_numa_processor_affinity_init()
arm64, NUMA: Cleanup NUMA disabled messages
arm64, NUMA: rework numa_add_memblk()
ACPI / NUMA: move acpi_numa_slit_init() to drivers/acpi/numa.c
ACPI / NUMA: Move acpi_numa_arch_fixup() to ia64 only
ACPI / NUMA: remove duplicate NULL check
ACPI / NUMA: Replace ACPI_DEBUG_PRINT() with pr_debug()
ACPI / NUMA: Use pr_fmt() instead of printk
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Pull ceph fix from Ilya Dryomov:
"A fix for a long-standing bug in the incremental osdmap handling code
that caused misdirected requests, tagged for stable"
The tag is signed with a brand new key - Sage is on vacation and I
didn't anticipate this"
* tag 'ceph-for-4.7-rc8' of git://github.com/ceph/ceph-client:
libceph: apply new_state before new_up_client on incrementals
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Pull networking fixes from David Miller:
1) Fix memory leak in nftables, from Liping Zhang.
2) Need to check result of vlan_insert_tag() in batman-adv otherwise we
risk NULL skb derefs, from Sven Eckelmann.
3) Check for dev_alloc_skb() failures in cfg80211, from Gregory
Greenman.
4) Handle properly when we have ppp_unregister_channel() happening in
parallel with ppp_connect_channel(), from WANG Cong.
5) Fix DCCP deadlock, from Eric Dumazet.
6) Bail out properly in UDP if sk_filter() truncates the packet to be
smaller than even the space that the protocol headers need. From
Michal Kubecek.
7) Similarly for rose, dccp, and sctp, from Willem de Bruijn.
8) Make TCP challenge ACKs less predictable, from Eric Dumazet.
9) Fix infinite loop in bgmac_dma_tx_add() from Florian Fainelli.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (65 commits)
packet: propagate sock_cmsg_send() error
net/mlx5e: Fix del vxlan port command buffer memset
packet: fix second argument of sock_tx_timestamp()
net: switchdev: change ageing_time type to clock_t
Update maintainer for EHEA driver.
net/mlx4_en: Add resilience in low memory systems
net/mlx4_en: Move filters cleanup to a proper location
sctp: load transport header after sk_filter
net/sched/sch_htb: clamp xstats tokens to fit into 32-bit int
net: cavium: liquidio: Avoid dma_unmap_single on uninitialized ndata
net: nb8800: Fix SKB leak in nb8800_receive()
et131x: Fix logical vs bitwise check in et131x_tx_timeout()
vlan: use a valid default mtu value for vlan over macsec
net: bgmac: Fix infinite loop in bgmac_dma_tx_add()
mlxsw: spectrum: Prevent invalid ingress buffer mapping
mlxsw: spectrum: Prevent overwrite of DCB capability fields
mlxsw: spectrum: Don't emit errors when PFC is disabled
mlxsw: spectrum: Indicate support for autonegotiation
mlxsw: spectrum: Force link training according to admin state
r8152: add MODULE_VERSION
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs fixes from Miklos Szeredi:
"This contains a fix for a potential crash/corruption issue and another
where the suid/sgid bits weren't cleared on write"
* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: verify upper dentry in ovl_remove_and_whiteout()
ovl: Copy up underlying inode's ->i_mode to overlay inode
ovl: handle ATTR_KILL*
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Merge misc fixes from Andrew Morton:
"Five fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
pps: do not crash when failed to register
tools/vm/slabinfo: fix an unintentional printf
testing/radix-tree: fix a macro expansion bug
radix-tree: fix radix_tree_iter_retry() for tagged iterators.
mm: memcontrol: fix cgroup creation failure after many small jobs
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git://people.freedesktop.org/~airlied/linux
Pull intel kabylake drm fixes from Dave Airlie:
"As mentioned Intel has gathered all the Kabylake fixes from -next,
which we've enabled in 4.7 for the first time, these are pretty much
limited in scope to only affects kabylake, which is hw that isn't
shipping yet. So I'm mostly okay with it going in now.
If we don't land this, it might be a good idea to disable kabylake
support in 4.7 before we ship"
* tag 'drm-fixes-for-v4.7-rc8-intel-kbl' of git://people.freedesktop.org/~airlied/linux: (28 commits)
drm/i915/kbl: Introduce the first official DMC for Kabylake.
drm/i915: Introduce Kabypoint PCH for Kabylake H/DT.
drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate
drm/i915/gen9: Add WaFbcHighMemBwCorruptionAvoidance
drm/i195/fbc: Add WaFbcNukeOnHostModify
drm/i915/gen9: Add WaFbcWakeMemOn
drm/i915/gen9: Add WaFbcTurnOffFbcWatermark
drm/i915/kbl: Add WaClearSlmSpaceAtContextSwitch
drm/i915/gen9: Add WaEnableChickenDCPR
drm/i915/kbl: Add WaDisableSbeCacheDispatchPortSharing
drm/i915/kbl: Add WaDisableGafsUnitClkGating
drm/i915/kbl: Add WaForGAMHang
drm/i915: Add WaInsertDummyPushConstP for bxt and kbl
drm/i915/kbl: Add WaDisableDynamicCreditSharing
drm/i915/kbl: Add WaDisableGamClockGating
drm/i915/gen9: Enable must set chicken bits in config0 reg
drm/i915/kbl: Add WaDisableLSQCROPERFforOCL
drm/i915/kbl: Add WaDisableSDEUnitClockGating
drm/i915/kbl: Add WaDisableFenceDestinationToSLM for A0
drm/i915/kbl: Add WaEnableGapsTsvCreditFix
...
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git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Two i915 regression fixes.
Intel have submitted some Kabylake fixes I'll send separately, since
this is the first kernel with kabylake support and they don't go much
outside that area I think they should be fine"
* tag 'drm-fixes-for-v4.7-rc8-intel' of git://people.freedesktop.org/~airlied/linux:
drm/i915: add missing condition for committing planes on crtc
drm/i915: Treat eDP as always connected, again
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k upddates from Geert Uytterhoeven:
- assorted spelling fixes
- defconfig updates
* tag 'm68k-for-v4.8-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k/defconfig: Update defconfigs for v4.7-rc2
m68k: Assorted spelling fixes
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A handful of fixes before final release:
Marvell Armada:
- One to fix a typo in the devicetree specifying memory ranges for
the crypto engine
- Two to deal with marking PCI and device-memory as strongly ordered
to avoid hardware deadlocks, in particular when enabling above
crypto driver.
- Compile fix for PM
Allwinner:
- DT clock fixes to deal with u-boot-enabled framebuffer (simplefb).
- Make R8 (C.H.I.P. SoC) inherit system compatibility from A13 to
make clocks register proper.
Tegra:
- Fix SD card voltage setting on the Tegra3 Beaver dev board
Misc:
- Two maintainers updates for STM32 and STi platforms"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: tegra: beaver: Allow SD card voltage to be changed
MAINTAINERS: update STi maintainer list
MAINTAINERS: update STM32 maintainers list
ARM: mvebu: compile pm code conditionally
ARM: dts: sun7i: Fix pll3x2 and pll7x2 not having a parent clock
ARM: dts: sunxi: Add pll3 to simplefb nodes clocks lists
ARM: dts: armada-38x: fix MBUS_ID for crypto SRAM on Armada 385 Linksys
ARM: mvebu: map PCI I/O regions strongly ordered
ARM: mvebu: fix HW I/O coherency related deadlocks
ARM: sunxi/dt: make the CHIP inherit from allwinner,sun5i-a13
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
"This fixes a sporadic build failure in the qat driver as well as a
memory corruption bug in rsa-pkcs1pad"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: rsa-pkcs1pad - fix rsa-pkcs1pad request struct
crypto: qat - make qat_asym_algs.o depend on asn1 headers
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull key handling fixes from James Morris:
"Quoting David Howells:
Here are three miscellaneous fixes:
(1) Fix a panic in some debugging code in PKCS#7. This can only
happen by explicitly inserting a #define DEBUG into the code.
(2) Fix the calculation of the digest length in the PE file parser.
This causes a failure where there should be a success.
(3) Fix the case where an X.509 cert can be added as an asymmetric key
to a trusted keyring with no trust restriction if no AKID is
supplied.
Bugs (1) and (2) aren't particularly problematic, but (3) allows a
security check to be bypassed. Happily, this is a recent regression
and never made it into a released kernel"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
KEYS: Fix for erroneous trust of incorrectly signed X.509 certs
pefile: Fix the failure of calculation for digest
PKCS#7: Fix panic when referring to the empty AKID when DEBUG defined
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
"A few more fixes for the input subsystem:
- restore naming for tsc2005 touchscreens as some userspace match on it
- fix out of bound access in legacy keyboard driver
- fixup in RMI4 driver
Everything is tagged for stable as well"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: tsc200x - report proper input_dev name
tty/vt/keyboard: fix OOB access in do_compute_shiftstate()
Input: synaptics-rmi4 - fix maximum size check for F12 control register 8
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git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fix from Dan Williams:
"This contains a regression fix for a problem that was introduced in
v4.7-rc6.
In 4.7-rc1 we introduced auto-probing for the ACPI DSM (device-
specific-method) format that the platform firmware implements for
nvdimm devices. We initially fixed a regression in probing the QEMU
DSM implementation by making acpi_check_dsm() tolerant of the way QEMU
reports the "0 DSMs supported" condition.
However, that broke HPE platforms since that tolerance caused the
driver to mistakenly match the 1-zero-byte response those platforms
give to "unknown" commands. Instead, we simply make the driver
tolerant of not finding any supported DSMs. This has been tested to
work with both QEMU and HPE platforms.
This commit has appeared in a -next release with no reported issues"
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
nfit: make DIMM DSMs optional
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fix from Linus Walleij:
"Compile problem fix for Tegra,
Sorry to send this in the last minute but Ingo says this build failure
is very prominent so I'm not going to wait for v4.7 before sending it.
It is a case of COMPILE_TEST causing more problems than it solves and
I'm already swearing about me shooting myself in the foot with that
gun :("
* tag 'gpio-v4.7-6' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: tegra: don't auto-enable for COMPILE_TEST
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Michael Turquette:
"Fix a bug in the at91 clk driver, two compile time warnings in sunxi
clk drivers, and one bug in a sunxi clk driver introduced in the 4.7
merge window"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: at91: fix clk_programmable_set_parent()
clk: sunxi: remove unused variable
clk: sunxi: display: Add per-clock flags
clk: sunxi: tcon-ch1: Do not return a negative error in get_parent
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata fix from Tejun Heo:
"Another fallout from max_sectors bump a couple years ago. The lite-on
optical drive times out on large requests"
* 'for-4.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
libata: LITE-ON CX1-JB256-HP needs lower max_sectors
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Pull MMC fixes from Ulf Hansson:
"Here are a few late mmc fixes intended for v4.7 final.
MMC core:
- Fix eMMC packed command header endianness
- Fix free of uninitialized buffer for mmc ioctl
MMC host:
- pxamci: Fix potential oops in ->probe()"
* tag 'mmc-v4.7-rc7' of git://git.linaro.org/people/ulf.hansson/mmc:
mmc: pxamci: fix potential oops
mmc: block: fix packed command header endianness
mmc: block: fix free of uninitialized 'idata->buf'
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"No surprise, just a few small fixes: a couple of changes are seen in
the core part, and both of them are rather for unusual error paths.
The rest are the regular HD-audio fixes and one USB-audio regression
fix"
* tag 'sound-4.7-fix2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: usb-audio: Fix quirks code is not called
ALSA: hda: add AMD Stoney PCI ID with proper driver caps
ALSA: hda - fix use-after-free after module unload
ALSA: pcm: Free chmap at PCM free callback, too
ALSA: ctl: Stop notification after disconnection
ALSA: hda/realtek - add new pin definition in alc225 pin quirk table
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Pull NVMe fix from Jens Axboe:
"Late addition here, it's basically a revert of a patch that was added
in this merge window, but has proven to cause problems.
This is swapping out the RCU based namespace protection with a good
old mutex instead"
* 'for-linus' of git://git.kernel.dk/linux-block:
nvme: Remove RCU namespace protection
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With this command sequence:
modprobe plip
modprobe pps_parport
rmmod pps_parport
the partport_pps modules causes this crash:
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: parport_detach+0x1d/0x60 [pps_parport]
Oops: 0000 [#1] SMP
...
Call Trace:
parport_unregister_driver+0x65/0xc0 [parport]
SyS_delete_module+0x187/0x210
The sequence that builds up to this is:
1) plip is loaded and takes the parport device for exclusive use:
plip0: Parallel port at 0x378, using IRQ 7.
2) pps_parport then fails to grab the device:
pps_parport: parallel port PPS client
parport0: cannot grant exclusive access for device pps_parport
pps_parport: couldn't register with parport0
3) rmmod of pps_parport is then killed because it tries to access
pardev->name, but pardev (taken from port->cad) is NULL.
So add a check for NULL in the test there too.
Link: http://lkml.kernel.org/r/20160714115245.12651-1-jslaby@suse.cz
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Rodolfo Giometti <giometti@enneenne.com>
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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The curly braces are missing here so we print stuff unintentionally.
Fixes: 9da4714a2d44 ('slub: slabinfo update for cmpxchg handling')
Link: http://lkml.kernel.org/r/20160715211243.GE19522@mwanda
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Laura Abbott <labbott@fedoraproject.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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There are no parentheses around this macro and it causes a problem when
we do:
index = rand() % THRASH_SIZE;
Link: http://lkml.kernel.org/r/20160715210953.GC19522@mwanda
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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radix_tree_iter_retry() resets slot to NULL, but it doesn't reset tags.
Then NULL slot and non-zero iter.tags passed to radix_tree_next_slot()
leading to crash:
RIP: radix_tree_next_slot include/linux/radix-tree.h:473
find_get_pages_tag+0x334/0x930 mm/filemap.c:1452
....
Call Trace:
pagevec_lookup_tag+0x3a/0x80 mm/swap.c:960
mpage_prepare_extent_to_map+0x321/0xa90 fs/ext4/inode.c:2516
ext4_writepages+0x10be/0x2b20 fs/ext4/inode.c:2736
do_writepages+0x97/0x100 mm/page-writeback.c:2364
__filemap_fdatawrite_range+0x248/0x2e0 mm/filemap.c:300
filemap_write_and_wait_range+0x121/0x1b0 mm/filemap.c:490
ext4_sync_file+0x34d/0xdb0 fs/ext4/fsync.c:115
vfs_fsync_range+0x10a/0x250 fs/sync.c:195
vfs_fsync fs/sync.c:209
do_fsync+0x42/0x70 fs/sync.c:219
SYSC_fdatasync fs/sync.c:232
SyS_fdatasync+0x19/0x20 fs/sync.c:230
entry_SYSCALL_64_fastpath+0x23/0xc1 arch/x86/entry/entry_64.S:207
We must reset iterator's tags to bail out from radix_tree_next_slot()
and go to the slow-path in radix_tree_next_chunk().
Fixes: 46437f9a554f ("radix-tree: fix race in gang lookup")
Link: http://lkml.kernel.org/r/1468495196-10604-1-git-send-email-aryabinin@virtuozzo.com
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
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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The memory controller has quite a bit of state that usually outlives the
cgroup and pins its CSS until said state disappears. At the same time
it imposes a 16-bit limit on the CSS ID space to economically store IDs
in the wild. Consequently, when we use cgroups to contain frequent but
small and short-lived jobs that leave behind some page cache, we quickly
run into the 64k limitations of outstanding CSSs. Creating a new cgroup
fails with -ENOSPC while there are only a few, or even no user-visible
cgroups in existence.
Although pinning CSSs past cgroup removal is common, there are only two
instances that actually need an ID after a cgroup is deleted: cache
shadow entries and swapout records.
Cache shadow entries reference the ID weakly and can deal with the CSS
having disappeared when it's looked up later. They pose no hurdle.
Swap-out records do need to pin the css to hierarchically attribute
swapins after the cgroup has been deleted; though the only pages that
remain swapped out after offlining are tmpfs/shmem pages. And those
references are under the user's control, so they are manageable.
This patch introduces a private 16-bit memcg ID and switches swap and
cache shadow entries over to using that. This ID can then be recycled
after offlining when the CSS remains pinned only by objects that don't
specifically need it.
This script demonstrates the problem by faulting one cache page in a new
cgroup and deleting it again:
set -e
mkdir -p pages
for x in `seq 128000`; do
[ $((x % 1000)) -eq 0 ] && echo $x
mkdir /cgroup/foo
echo $$ >/cgroup/foo/cgroup.procs
echo trex >pages/$x
echo $$ >/cgroup/cgroup.procs
rmdir /cgroup/foo
done
When run on an unpatched kernel, we eventually run out of possible IDs
even though there are no visible cgroups:
[root@ham ~]# ./cssidstress.sh
[...]
65000
mkdir: cannot create directory '/cgroup/foo': No space left on device
After this patch, the IDs get released upon cgroup destruction and the
cache and css objects get released once memory reclaim kicks in.
[hannes@cmpxchg.org: init the IDR]
Link: http://lkml.kernel.org/r/20160621154601.GA22431@cmpxchg.org
Fixes: b2052564e66d ("mm: memcontrol: continue cache reclaim from offlined groups")
Link: http://lkml.kernel.org/r/20160617162516.GD19084@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reported-by: John Garcia <john.garcia@mesosphere.io>
Reviewed-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Nikolay Borisov <kernel@kyup.com>
Cc: <stable@vger.kernel.org> [3.19+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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I stumbled over a build error with COMPILE_TEST and CONFIG_OF
disabled:
drivers/gpio/gpio-tegra.c: In function 'tegra_gpio_probe':
drivers/gpio/gpio-tegra.c:603:9: error: 'struct gpio_chip' has no member named 'of_node'
The problem is that the newly added GPIO_TEGRA Kconfig symbol
does not have a dependency on CONFIG_OF. However, there is another
problem here as the driver gets enabled unconditionally whenever
COMPILE_TEST is set.
This fixes both problems, by making the symbol user-visible
when COMPILE_TEST is set and default-enabled for ARCH_TEGRA=y.
As a side-effect, it is now possible to compile-test a Tegra
kernel with GPIO support disabled, which is harmless.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 4dd4dd1d2120 ("gpio: tegra: Allow compile test")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Currently, osd_weight and osd_state fields are updated in the encoding
order. This is wrong, because an incremental map may look like e.g.
new_up_client: { osd=6, addr=... } # set osd_state and addr
new_state: { osd=6, xorstate=EXISTS } # clear osd_state
Suppose osd6's current osd_state is EXISTS (i.e. osd6 is down). After
applying new_up_client, osd_state is changed to EXISTS | UP. Carrying
on with the new_state update, we flip EXISTS and leave osd6 in a weird
"!EXISTS but UP" state. A non-existent OSD is considered down by the
mapping code
2087 for (i = 0; i < pg->pg_temp.len; i++) {
2088 if (ceph_osd_is_down(osdmap, pg->pg_temp.osds[i])) {
2089 if (ceph_can_shift_osds(pi))
2090 continue;
2091
2092 temp->osds[temp->size++] = CRUSH_ITEM_NONE;
and so requests get directed to the second OSD in the set instead of
the first, resulting in OSD-side errors like:
[WRN] : client.4239 192.168.122.21:0/2444980242 misdirected client.4239.1:2827 pg 2.5df899f2 to osd.4 not [1,4,6] in e680/680
and hung rbds on the client:
[ 493.566367] rbd: rbd0: write 400000 at 11cc00000 (0)
[ 493.566805] rbd: rbd0: result -6 xferred 400000
[ 493.567011] blk_update_request: I/O error, dev rbd0, sector 9330688
The fix is to decouple application from the decoding and:
- apply new_weight first
- apply new_state before new_up_client
- twiddle osd_state flags if marking in
- clear out some of the state if osd is destroyed
Fixes: http://tracker.ceph.com/issues/14901
Cc: stable@vger.kernel.org # 3.15+: 6dd74e44dc1d: libceph: set 'exists' flag for newly up osd
Cc: stable@vger.kernel.org # 3.15+
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Josh Durgin <jdurgin@redhat.com>
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To allow for child request context the struct akcipher_request child_req
needs to be at the end of the structure.
Cc: stable@vger.kernel.org
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The upper dentry may become stale before we call ovl_lock_rename_workdir.
For example, someone could (mistakenly or maliciously) manually unlink(2)
it directly from upperdir.
To ensure it is not stale, let's lookup it after ovl_lock_rename_workdir
and and check if it matches the upper dentry.
Essentially, it is the same problem and similar solution as in
commit 11f3710417d0 ("ovl: verify upper dentry before unlink and rename").
Signed-off-by: Maxim Patlasov <mpatlasov@virtuozzo.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Cc: <stable@vger.kernel.org>
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sock_cmsg_send() can return different error codes and not only
-EINVAL, and we should properly propagate them.
Fixes: c14ac9451c34 ("sock: enable timestamping using control messages")
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Now that ACPI processor idle driver supports LPI(Low Power Idle), lets
enable ACPI_PROCESSOR_IDLE for ARM64 too.
This patch just removes the IA64 and X86 dependency on ACPI_PROCESSOR_IDLE
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This patch adds appropriate callbacks to support ACPI Low Power Idle
(LPI) on ARM64.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This patch adds support for initialisation of PSCI CPUIdle states
from Low Power Idle(_LPI) entries in the ACPI tables when acpi is
enabled.
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The function arm_enter_idle_state is exactly the same in both generic
ARM{32,64} CPUIdle driver and will be the same even on ARM64 backend
for ACPI processor idle driver. So we can unify it and move it to a
common place by introducing CPU_PM_CPU_IDLE_ENTER macro that can be
used in all places avoiding duplication.
This is in preparation of reuse of the generic cpuidle entry function
for ACPI LPI support on ARM64.
Suggested-by: Rafael J. Wysocki <rjw@rjwysocki.net>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Commit ea389daa7fd9 (arm64: cpuidle: add __init section marker to
arm_cpuidle_init) added the __init annotation to arm_cpuidle_init
as it was not needed after booting which was correct at that time.
However with the introduction of ACPI LPI support, this will be used
from cpuhotplug path in ACPI processor driver.
This patch drops the __init annotation from arm_cpuidle_init to avoid
the following warning:
WARNING: vmlinux.o(.text+0x113c8): Section mismatch in reference from the
function acpi_processor_ffh_lpi_probe() to the function
.init.text:arm_cpuidle_init()
The function acpi_processor_ffh_lpi_probe() references
the function __init arm_cpuidle_init().
This is often because acpi_processor_ffh_lpi_probe() lacks a __init
annotation or the annotation of arm_cpuidle_init is wrong.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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ACPI 6.0 introduced an optional object _LPI that provides an alternate
method to describe Low Power Idle states. It defines the local power
states for each node in a hierarchical processor topology. The OSPM can
use _LPI object to select a local power state for each level of processor
hierarchy in the system. They used to produce a composite power state
request that is presented to the platform by the OSPM.
Since multiple processors affect the idle state for any non-leaf hierarchy
node, coordination of idle state requests between the processors is
required. ACPI supports two different coordination schemes: Platform
coordinated and OS initiated.
This patch adds initial support for Platform coordination scheme of LPI.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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ACPI 6.0 adds a new method to specify the CPU idle states(C-states)
called Low Power Idle(LPI) states. Since new architectures like ARM64
use only LPIs, introduce ACPI_PROCESSOR_CSTATE to encapsulate all the
code supporting the old style C-states(_CST).
This patch will help to extend the processor_idle module to support
LPI.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Since DPTF has its own folder under ACPI, move this file also there.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This driver adds support for Dynamic Platform and Thermal Framework
(DPTF) Platform Power Participant device (INT3407) support.
This participant is responsible for exposing platform telemetry such as:
max_platform_power
platform_power_source
adapter_rating
battery_steady_power
charger_type
These attributes are presented via sysfs interface under the INT3407
platform device:
$ls /sys/bus/platform/devices/INT3407\:00/dptf_power/
adapter_rating_mw
battery_steady_power_mw
charger_type
max_platform_power_mw
platform_power_source
`
ACPI methods description used in this driver:
PMAX: Maximum platform power that can be supported by the battery in
mW.
PSRC: System charge source,
0x00 = DC
0x01 = AC
0x02 = USB
0x03 = Wireless Charger
ARTG: Adapter rating in mW (Maximum Adapter power) Must be 0 if no
AC adapter is plugged in.
CTYP: Charger Type,
Traditional : 0x01
Hybrid: 0x02
NVDC: 0x03
PBSS: Returns max sustained power for battery in milliWatts.
The INT3407 also contains _BTS and _BIX objects, which are compliant to
ACPI 5.0, specification. Those objects are already used by ACPI battery
(PNP0C0A) driver and information about them is exported via Linux power
supply class registration.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Parallel build can sporadically fail because asn1 headers may
not be built yet by the time qat_asym_algs.o is compiled:
drivers/crypto/qat/qat_common/qat_asym_algs.c:55:32: fatal error: qat_rsapubkey-asn1.h: No such file or directory
#include "qat_rsapubkey-asn1.h"
Cc: stable@vger.kernel.org
Signed-off-by: Jan Stancek <jstancek@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Passes input_id struct to the common probe function for the tsc200x drivers
instead of just the bustype.
This allows for the use of the product variable to set the input_dev->name
variable according to the type of touchscreen used. Note that when we
introduced support for TSC2004 we started calling everything TSC200X, so
let's keep this quirk.
Signed-off-by: Michael Welling <mwelling@ieee.org>
Cc: stable@vger.kernel.org
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The size of individual keymap in drivers/tty/vt/keyboard.c is NR_KEYS,
which is currently 256, whereas number of keys/buttons in input device (and
therefor in key_down) is much larger - KEY_CNT - 768, and that can cause
out-of-bound access when we do
sym = U(key_maps[0][k]);
with large 'k'.
To fix it we should not attempt iterating beyond smaller of NR_KEYS and
KEY_CNT.
Also while at it let's switch to for_each_set_bit() instead of open-coding
it.
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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memset the command buffers rather than the pointers to them.
Fixes: b3f63c3d5e2c ("net/mlx5e: Add netdev support for VXLAN tunneling")
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes an issue that a syscall (e.g. sendto syscall) cannot
work correctly. Since the sendto syscall doesn't have msg_control buffer,
the sock_tx_timestamp() in packet_snd() cannot work correctly because
the socks.tsflags is set to 0.
So, this patch sets the socks.tsflags to sk->sk_tsflags as default.
Fixes: c14ac9451c34 ("sock: enable timestamping using control messages")
Reported-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Reported-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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