Pull block IO driver changes from Jens Axboe:
- bcache update from Kent Overstreet.
- two bcache fixes from Nicholas Swenson.
- cciss pci init error fix from Andrew.
- underflow fix in the parallel IDE pg_write code from Dan Carpenter.
I'm sure the 1 (or 0) users of that are now happy.
- two PCI related fixes for sx8 from Jingoo Han.
- floppy init fix for first block read from Jiri Kosina.
- pktcdvd error return miss fix from Julia Lawall.
- removal of IRQF_SHARED from the SEGA Dreamcast CD-ROM code from
Michael Opdenacker.
- comment typo fix for the loop driver from Olaf Hering.
- potential oops fix for null_blk from Raghavendra K T.
- two fixes from Sam Bradshaw (Micron) for the mtip32xx driver, fixing
an OOM problem and a problem with handling security locked conditions
* 'for-3.14/drivers' of git://git.kernel.dk/linux-block: (47 commits)
mg_disk: Spelling s/finised/finished/
null_blk: Null pointer deference problem in alloc_page_buffers
mtip32xx: Correctly handle security locked condition
mtip32xx: Make SGL container per-command to eliminate high order dma allocation
drivers/block/loop.c: fix comment typo in loop_config_discard
drivers/block/cciss.c:cciss_init_one(): use proper errnos
drivers/block/paride/pg.c: underflow bug in pg_write()
drivers/block/sx8.c: remove unnecessary pci_set_drvdata()
drivers/block/sx8.c: use module_pci_driver()
floppy: bail out in open() if drive is not responding to block0 read
bcache: Fix auxiliary search trees for key size > cacheline size
bcache: Don't return -EINTR when insert finished
bcache: Improve bucket_prio() calculation
bcache: Add bch_bkey_equal_header()
bcache: update bch_bkey_try_merge
bcache: Move insert_fixup() to btree_keys_ops
bcache: Convert sorting to btree_keys
bcache: Convert debug code to btree_keys
bcache: Convert btree_iter to struct btree_keys
bcache: Refactor bset_tree sysfs stats
...
Pull core block IO changes from Jens Axboe:
"The major piece in here is the immutable bio_ve series from Kent, the
rest is fairly minor. It was supposed to go in last round, but
various issues pushed it to this release instead. The pull request
contains:
- Various smaller blk-mq fixes from different folks. Nothing major
here, just minor fixes and cleanups.
- Fix for a memory leak in the error path in the block ioctl code
from Christian Engelmayer.
- Header export fix from CaiZhiyong.
- Finally the immutable biovec changes from Kent Overstreet. This
enables some nice future work on making arbitrarily sized bios
possible, and splitting more efficient. Related fixes to immutable
bio_vecs:
- dm-cache immutable fixup from Mike Snitzer.
- btrfs immutable fixup from Muthu Kumar.
- bio-integrity fix from Nic Bellinger, which is also going to stable"
* 'for-3.14/core' of git://git.kernel.dk/linux-block: (44 commits)
xtensa: fixup simdisk driver to work with immutable bio_vecs
block/blk-mq-cpu.c: use hotcpu_notifier()
blk-mq: for_each_* macro correctness
block: Fix memory leak in rw_copy_check_uvector() handling
bio-integrity: Fix bio_integrity_verify segment start bug
block: remove unrelated header files and export symbol
blk-mq: uses page->list incorrectly
blk-mq: use __smp_call_function_single directly
btrfs: fix missing increment of bi_remaining
Revert "block: Warn and free bio if bi_end_io is not set"
block: Warn and free bio if bi_end_io is not set
blk-mq: fix initializing request's start time
block: blk-mq: don't export blk_mq_free_queue()
block: blk-mq: make blk_sync_queue support mq
block: blk-mq: support draining mq queue
dm cache: increment bi_remaining when bi_end_io is restored
block: fixup for generic bio chaining
block: Really silence spurious compiler warnings
block: Silence spurious compiler warnings
block: Kill bio_pair_split()
...
Pull nfsd updates from Bruce Fields:
- Handle some loose ends from the vfs read delegation support.
(For example nfsd can stop breaking leases on its own in a
fewer places where it can now depend on the vfs to.)
- Make life a little easier for NFSv4-only configurations
(thanks to Kinglong Mee).
- Fix some gss-proxy problems (thanks Jeff Layton).
- miscellaneous bug fixes and cleanup
* 'for-3.14' of git://linux-nfs.org/~bfields/linux: (38 commits)
nfsd: consider CLAIM_FH when handing out delegation
nfsd4: fix delegation-unlink/rename race
nfsd4: delay setting current_fh in open
nfsd4: minor nfs4_setlease cleanup
gss_krb5: use lcm from kernel lib
nfsd4: decrease nfsd4_encode_fattr stack usage
nfsd: fix encode_entryplus_baggage stack usage
nfsd4: simplify xdr encoding of nfsv4 names
nfsd4: encode_rdattr_error cleanup
nfsd4: nfsd4_encode_fattr cleanup
minor svcauth_gss.c cleanup
nfsd4: better VERIFY comment
nfsd4: break only delegations when appropriate
NFSD: Fix a memory leak in nfsd4_create_session
sunrpc: get rid of use_gssp_lock
sunrpc: fix potential race between setting use_gss_proxy and the upcall rpc_clnt
sunrpc: don't wait for write before allowing reads from use-gss-proxy file
nfsd: get rid of unused function definition
Define op_iattr for nfsd4_open instead using macro
NFSD: fix compile warning without CONFIG_NFSD_V3
...
Fix
drivers/char/ipmi/ipmi_si_intf.c: In function 'ipmi_parisc_probe':
drivers/char/ipmi/ipmi_si_intf.c:2752:2: error: 'rv' undeclared (first use in this function)
drivers/char/ipmi/ipmi_si_intf.c:2752:2: note: each undeclared identifier is reported only once for each function it appears in
Introduced by commit d02b3709ff ("ipmi: Cleanup error return")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Chris Mason reported a NULL pointer derefernence in generic_getxattr()
that was due to sb->s_xattr being NULL.
The reason is that the nfs #ifdef's for ACL support were misplaced, and
the nfs3 inode operations had the xattr operation pointers set up, even
though xattrs were not actually supported. As a result, the xattr code
was being called without the infrastructure having been set up.
Move the #ifdef's appropriately.
Reported-and-tested-by: Chris Mason <clm@fb.com>
Acked-by: Al Viro viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull drm updates from Dave Airlie:
"Been a bit busy, first week of kids school, and waiting on other trees
to go in before I could send this, so its a bit later than I'd
normally like.
Highlights:
- core:
timestamp fixes, lots of misc cleanups
- new drivers:
bochs virtual vga
- vmwgfx:
major overhaul for their nextgen virt gpu.
- i915:
runtime D3 on HSW, watermark fixes, power well work, fbc fixes,
bdw is no longer prelim.
- nouveau:
gk110/208 acceleration, more pm groundwork, old overlay support
- radeon:
dpm rework and clockgating for CIK, pci config reset, big endian
fixes
- tegra:
panel support and DSI support, build as module, prime.
- armada, omap, gma500, rcar, exynos, mgag200, cirrus, ast:
fixes
- msm:
hdmi support for mdp5"
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (595 commits)
drm/nouveau: resume display if any later suspend bits fail
drm/nouveau: fix lock unbalance in nouveau_crtc_page_flip
drm/nouveau: implement hooks for needed for drm vblank timestamping support
drm/nouveau/disp: add a method to fetch info needed by drm vblank timestamping
drm/nv50: fill in crtc mode struct members from crtc_mode_fixup
drm/radeon/dce8: workaround for atom BlankCrtc table
drm/radeon/DCE4+: clear bios scratch dpms bit (v2)
drm/radeon: set si_notify_smc_display_change properly
drm/radeon: fix DAC interrupt handling on DCE5+
drm/radeon: clean up active vram sizing
drm/radeon: skip async dma init on r6xx
drm/radeon/runpm: don't runtime suspend non-PX cards
drm/radeon: add ring to fence trace functions
drm/radeon: add missing trace point
drm/radeon: fix VMID use tracking
drm: ast,cirrus,mgag200: use drm_can_sleep
drm/gma500: Lock struct_mutex around cursor updates
drm/i915: Fix the offset issue for the stolen GEM objects
DRM: armada: fix missing DRM_KMS_FB_HELPER select
drm/i915: Decouple GPU error reporting from ring initialisation
...
Pull slave-dma updates from Vinod Koul:
- new driver for BCM2835 used in R-pi
- new driver for MOXA ART
- dma_get_any_slave_channel API for DT based systems
- minor fixes and updates spread acrooss driver
[ The fsl-ssi dual fifo mode support addition clashed badly with the
other changes to fsl-ssi that came in through the sound merge. I did
a very rough cut at fixing up the conflict, but Nicolin Chen (author
of both sides) will need to verify and check things ]
* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (36 commits)
dmaengine: mmp_pdma: fix mismerge
dma: pl08x: Export pl08x_filter_id
acpi-dma: align documentation with kernel-doc format
dma: fix vchan_cookie_complete() debug print
DMA: dmatest: extend the "device" module parameter to 32 characters
drivers/dma: fix error return code
dma: omap: Set debug level to debugging messages
dmaengine: fix kernel-doc style typos for few comments
dma: tegra: add support for Tegra148/124
dma: dw: use %pad instead of casting dma_addr_t
dma: dw: join split up messages
dma: dw: fix style of multiline comment
dmaengine: k3dma: fix sparse warnings
dma: pl330: Use dma_get_slave_channel() in the of xlate callback
dma: pl330: Differentiate between submitted and issued descriptors
dmaengine: sirf: Add device_slave_caps interface
DMA: Freescale: change BWC from 256 bytes to 1024 bytes
dmaengine: Add MOXA ART DMA engine driver
dmaengine: Add DMA_PRIVATE to BCM2835 driver
dma: imx-sdma: Assign a default script number for ROM firmware cases
...
* Use deferred probing on Chrome OS platforms for the i2c
device registration. This fixes a long-standing race of initialization
of touchpad/screen on Chromebooks.
* Added in platform device registration for pstore console on supported hardware
* Misc smaller fixes (__initdata, module exit cleanup, etc)
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform
Pull chrome platform cleanups and improvements from Olof Johansson:
- Use deferred probing on Chrome OS platforms for the i2c device
registration. This fixes a long-standing race of initialization of
touchpad/screen on Chromebooks.
- Added in platform device registration for pstore console on supported
hardware
- Misc smaller fixes (__initdata, module exit cleanup, etc)
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform:
platform/chrome: unregister platform driver/device when module exit
platform/chrome: Make i2c_adapter_names static
platform/chrome: chromeos_laptop - fix incorrect placement of __initdata tag
platform/chrome: chromeos_laptop - Use deferred probing
platform/chrome: chromeos_laptop - Restructure device associations
platform/chrome: Add pstore platform_device
A few patches have been queued up for this merge window:
* Improvements for the ARM-SMMU driver
(IOMMU_EXEC support, IOMMU group support)
* Updates and fixes for the shmobile IOMMU driver
* Various fixes to generic IOMMU code and the
Intel IOMMU driver
* Some cleanups in IOMMU drivers (dev_is_pci() usage)
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Merge tag 'iommu-updates-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU Updates from Joerg Roedel:
"A few patches have been queued up for this merge window:
- improvements for the ARM-SMMU driver (IOMMU_EXEC support, IOMMU
group support)
- updates and fixes for the shmobile IOMMU driver
- various fixes to generic IOMMU code and the Intel IOMMU driver
- some cleanups in IOMMU drivers (dev_is_pci() usage)"
* tag 'iommu-updates-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (36 commits)
iommu/vt-d: Fix signedness bug in alloc_irte()
iommu/vt-d: free all resources if failed to initialize DMARs
iommu/vt-d, trivial: clean sparse warnings
iommu/vt-d: fix wrong return value of dmar_table_init()
iommu/vt-d: release invalidation queue when destroying IOMMU unit
iommu/vt-d: fix access after free issue in function free_dmar_iommu()
iommu/vt-d: keep shared resources when failed to initialize iommu devices
iommu/vt-d: fix invalid memory access when freeing DMAR irq
iommu/vt-d, trivial: simplify code with existing macros
iommu/vt-d, trivial: use defined macro instead of hardcoding
iommu/vt-d: mark internal functions as static
iommu/vt-d, trivial: clean up unused code
iommu/vt-d, trivial: check suitable flag in function detect_intel_iommu()
iommu/vt-d, trivial: print correct domain id of static identity domain
iommu/vt-d, trivial: refine support of 64bit guest address
iommu/vt-d: fix resource leakage on error recovery path in iommu_init_domains()
iommu/vt-d: fix a race window in allocating domain ID for virtual machines
iommu/vt-d: fix PCI device reference leakage on error recovery path
drm/msm: Fix link error with !MSM_IOMMU
iommu/vt-d: use dedicated bitmap to track remapping entry allocation status
...
Pull more i2c updates from Wolfram Sang:
"Mostly bugfixes, small but wanted cleanups, and Paul's init.h removal
applied"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: rcar: fix NACK error code
i2c: update i2c_algorithm documentation
i2c: rcar: use devm_clk_get to ensure clock is properly ref-counted
i2c: rcar: do not print error if device nacks transfer
i2c: rely on driver core when sanitizing devices
i2c: delete non-required instances of include <linux/init.h>
i2c: acorn: is tristate and should use module.h
i2c: piix4: Standardize log messages
i2c: piix4: Use different message for AMD Auxiliary SMBus Controller
i2c: piix4: Add support for AMD ML and CZ SMBus changes
Pull hwmon updates from Jean Delvare:
"This include it87 driver improvements, and a tree-wide change of my
e-mail address"
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
Update Jean Delvare's e-mail address
hwmon: (it87) Print proper names for the IT8771E and IT8772E
hwmon: (it87) Add support for the ITE IT8603E
Pull x86 platform drivers update from Matthew Garrett:
"Nothing amazingly special here. Some cleanups, a new driver to
support a single button on some new HPs, a tiny amount of hardware
enablement"
* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86:
ipc: add intel-mid's pci id macros
hp-wireless: new driver for hp wireless button for Windows 8
toshiba_acpi: Support RFKILL hotkey scancode
hp_accel: Add a new PnP ID HPQ6007 for new HP laptops
sony-laptop: remove unnecessary assigment of len
fujitsu-laptop: fix error return code
dell-laptop: Only install the i8042 filter when rfkill is active
X86 platform: New BayTrail IOSF-SB MBI driver
drivers: platform: Include appropriate header file in mxm-wmi.c
drivers: platform: Mark functions as static in hp_accel.c
dell-laptop: rkill whitelist Precision models
ipc: simplify platform data approach
asus-wmi: Convert to use devm_hwmon_device_register_with_groups
compal-laptop: Use devm_hwmon_device_register_with_groups
compal-laptop: Replace SENSOR_DEVICE_ATTR with DEVICE_ATTR
eeepc-laptop: Convert to use devm_hwmon_device_register_with_groups
compal-laptop: Use devm_kzalloc to allocate local data structure
dell-laptop: fix to return error code in dell_send_intensity()
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Merge tag 'blackfin-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/realmz6/blackfin-linux
Pull blackfin updates from Steven Miao:
"Some minor changes and bug fixes"
* tag 'blackfin-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/realmz6/blackfin-linux:
From: Eunbong Song <eunb.song@samsung.com>
Add platfrom device resource for bfin-sport on bf533 stamp
fix build error for bf527-ezkit_defconfig for old silicon
blackfin: Support L1 SRAM parity checking feature on bf60x
blackfin: bf609: update the anomaly list to Nov 2013
blackfin: delete non-required instances of <linux/init.h>
From: Paul Walmsley <pwalmsley@nvidia.com>
06/18] smp, blackfin: kill SMP single function call interrupt
arch: blackfin: uapi: be sure of "_UAPI" prefix for all guard macros
Pull intel MID cleanups from Peter Anvin:
"Miscellaneous cleanups to the intel-mid code merged earlier in this
merge window"
* 'x86-intel-mid-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, intel-mid: Cleanup some platform code's header files
x86, intel-mid: Add missing 'void' to functions without arguments
x86: Don't add new __cpuinit users to Merrifield platform code
x86: Don't introduce more __cpuinit users in intel_mid_weak_decls.h
Pull more x32 uabi type fixes from Peter Anvin:
"Despite the branch name, **most of these changes are to generic
code**. They change types so that they make an increasing amount of
the exported uapi kernel headers usable for libc.
The ARM64 people are also interested in these changes for their ILP32
ABI"
* 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
uapi: Use __kernel_long_t in struct mq_attr
uapi: Use __kernel_ulong_t in shmid64_ds/shminfo64/shm_info
x86, uapi, x32: Use __kernel_ulong_t in x86 struct semid64_ds
uapi: Use __kernel_ulong_t in struct msqid64_ds
uapi: Use __kernel_long_t in struct msgbuf
uapi, asm-generic: Use __kernel_ulong_t in uapi struct ipc64_perm
uapi: Use __kernel_long_t/__kernel_ulong_t in <linux/resource.h>
uapi: Use __kernel_long_t in struct timex
Pull more ARM updates from Russell King:
"Some further changes for this merge window:
- fix bug building with gcc 4.6.4 and EABI.
- fix pgtbl macro with some LPAE configurations
- fix initrd override - FDT was overriding the command line, and it
should be the other way around.
- fix byteswap of instructions in undefined instruction handler
- add basic support for SolidRun Hummingboard and Cubox-i boards"
* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: fix building with gcc 4.6.4
ARM: 7941/2: Fix incorrect FDT initrd parameter override
ARM: 7947/1: Make pgtbl macro more robust
ARM: 7946/1: asm: __und_usr_thumb need byteswap instructions in BE case
ARM: 7930/1: Introduce atomic MMIO modify
ARM: imx: initial SolidRun Cubox-i support
ARM: imx: initial SolidRun HummingBoard support
Pull networking fixes from David Miller:
"Several fixups, of note:
1) Fix unlock of not held spinlock in RXRPC code, from Alexey
Khoroshilov.
2) Call pci_disable_device() from the correct shutdown path in bnx2x
driver, from Yuval Mintz.
3) Fix qeth build on s390 for some configurations, from Eugene
Crosser.
4) Cure locking bugs in bond_loadbalance_arp_mon(), from Ding
Tianhong.
5) Must do netif_napi_add() before registering netdevice in sky2
driver, from Stanislaw Gruszka.
6) Fix lost bug fix during merge due to code movement in ieee802154,
noticed and fixed by the eagle eyed Stephen Rothwell.
7) Get rid of resource leak in xen-netfront driver, from Annie Li.
8) Bounds checks in qlcnic driver are off by one, from Manish Chopra.
9) TPROXY can leak sockets when TCP early demux is enabled, fix from
Holger Eitzenberger"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (32 commits)
qeth: fix build of s390 allmodconfig
bonding: fix locking in bond_loadbalance_arp_mon()
tun: add device name(iff) field to proc fdinfo entry
DT: net: davinci_emac: "ti, davinci-no-bd-ram" property is actually optional
DT: net: davinci_emac: "ti, davinci-rmii-en" property is actually optional
bnx2x: Fix generic option settings
net: Fix warning on make htmldocs caused by skbuff.c
llc: remove noisy WARN from llc_mac_hdr_init
qlcnic: Fix loopback test failure
qlcnic: Fix tx timeout.
qlcnic: Fix initialization of vlan list.
qlcnic: Correct off-by-one errors in bounds checks
net: Document promote_secondaries
net: gre: use icmp_hdr() to get inner ip header
i40e: Add missing braces to i40e_dcb_need_reconfig()
xen-netfront: fix resource leak in netfront
net: 6lowpan: fixup for code movement
hyperv: Add support for physically discontinuous receive buffer
sky2: initialize napi before registering device
net: Fix memory leak if TPROXY used with TCP early demux
...
Pull sparc update from David Miller:
"Two cleanups from Paul Gortmaker and hook up the new scheduler system
calls"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: Hook up sched_setattr and sched_getattr syscalls.
sparc: don't use module_init in non-modular pci.c code
sparc: delete non-required instances of include <linux/init.h>
Pull IDE fixes from David Miller:
"Two header file inclusion fixes from Rashika Kheria"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
drivers: ide: Include appropriate header file in ide-pio-blacklist.c
drivers: ide: Include appropriate header file in ide-cd_verbose.c
more fixes for nouveau.
* 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nouveau: resume display if any later suspend bits fail
drm/nouveau: fix lock unbalance in nouveau_crtc_page_flip
drm/nouveau: implement hooks for needed for drm vblank timestamping support
drm/nouveau/disp: add a method to fetch info needed by drm vblank timestamping
drm/nv50: fill in crtc mode struct members from crtc_mode_fixup
more radeon fixes
* 'drm-next-3.14' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon/dce8: workaround for atom BlankCrtc table
drm/radeon/DCE4+: clear bios scratch dpms bit (v2)
drm/radeon: set si_notify_smc_display_change properly
drm/radeon: fix DAC interrupt handling on DCE5+
drm/radeon: clean up active vram sizing
drm/radeon: skip async dma init on r6xx
drm/radeon/runpm: don't runtime suspend non-PX cards
drm/radeon: add ring to fence trace functions
drm/radeon: add missing trace point
drm/radeon: fix VMID use tracking
Merge random fixes from Andrew Morton:
"Random fixes.
I have one batch remaining for -rc1, mainly zram changes which await a
merge of Jens's trees"
* emailed patches fron Andrew Morton akpm@linux-foundation.org>:
MAINTAINERS: ADI Linux development mailing lists: change to the new server
Documentation: fix multiple typo occurences s/KenelVersion/KernelVersion/
dma-debug: fix overlap detection
memblock: add limit checking to memblock_virt_alloc
mm/readahead.c: fix do_readahead() for no readpage(s)
mm/slub.c: do not VM_BUG_ON_PAGE() for temporary on-stack pages
slab: fix wrong retval on kmem_cache_create_memcg error path
s390/compat: change parameter types from unsigned long to compat_ulong_t
fs/compat: fix lookup_dcookie() parameter handling
fs/compat: fix parameter handling for compat readv/writev syscalls
mm/mempolicy.c: convert to pr_foo()
mm: numa: initialise numa balancing after jump label initialisation
mm/page-writeback.c: do not count anon pages as dirtyable memory
mm/page-writeback.c: fix dirty_balance_reserve subtraction from dirtyable memory
mm: document improved handling of swappiness==0
lib/genalloc.c: add check gen_pool_dma_alloc() if dma pointer is not NULL
Commit 0abdd7a81b ("dma-debug: introduce debug_dma_assert_idle()") was
reworked to expand the overlap counter to the full range expressable by
3 tag bits, but it has a thinko in treating the overlap counter as a
pure reference count for the entry.
Instead of deleting when the reference-count drops to zero, we need to
delete when the overlap-count drops below zero. Also, when detecting
overflow we can just test the overlap-count > MAX rather than applying
special meaning to 0.
Regression report available here:
http://marc.info/?l=linux-netdev&m=139073373932386&w=2
This patch, now tested on the original net_dma case, sees the expected
handful of reports before the eventual data corruption occurs.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Cc: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In original bootmem wrapper for memblock, we have limit checking.
Add it to memblock_virt_alloc, to address arm and x86 booting crash.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Reported-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
Reported-by: Olof Johansson <olof@lixom.net>
Tested-by: Olof Johansson <olof@lixom.net>
Reported-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: "Strashko, Grygorii" <grygorii.strashko@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 63d0f0a3c7 ("mm/readahead.c:do_readhead(): don't check for
->readpage") unintentionally made do_readahead return 0 for all valid
files regardless of whether readahead was supported, rather than the
expected -EINVAL. This gets forwarded on to userspace, and results in
sys_readahead appearing to succeed in cases that don't make sense (e.g.
when called on pipes or sockets). This issue is detected by the LTP
readahead01 testcase.
As the exact return value of force_page_cache_readahead is currently
never used, we can simplify it to return only 0 or -EINVAL (when
readpage or readpages is missing). With that in place we can simply
forward on the return value of force_page_cache_readahead in
do_readahead.
This patch performs said change, restoring the expected semantics.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 309381feae ("mm: dump page when hitting a VM_BUG_ON using
VM_BUG_ON_PAGE") added a bunch of VM_BUG_ON_PAGE() calls.
But, most of the ones in the slub code are for _temporary_ 'struct
page's which are declared on the stack and likely have lots of gunk in
them. Dumping their contents out will just confuse folks looking at
bad_page() output. Plus, if we try to page_to_pfn() on them or
soemthing, we'll probably oops anyway.
Turn them back in to VM_BUG_ON()s.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
On kmem_cache_create_memcg() error path we set 'err', but leave 's' (the
new cache ptr) undefined. The latter can be NULL if we could not
allocate the cache, or pointing to a freed area if we failed somewhere
later while trying to initialize it. Initially we checked 'err'
immediately before exiting the function and returned NULL if it was set
ignoring the value of 's':
out_unlock:
...
if (err) {
/* report error */
return NULL;
}
return s;
Recently this check was, in fact, broken by commit f717eb3abb ("slab:
do not panic if we fail to create memcg cache"), which turned it to:
out_unlock:
...
if (err && !memcg) {
/* report error */
return NULL;
}
return s;
As a result, if we are failing creating a cache for a memcg, we will
skip the check and return 's' that can contain crap. Obviously, commit
f717eb3abb intended not to return crap on error allocating a cache for
a memcg, but only to remove the error reporting in this case, so the
check should look like this:
out_unlock:
...
if (err) {
if (!memcg)
return NULL;
/* report error */
return NULL;
}
return s;
[rientjes@google.com: despaghettification]
[vdavydov@parallels.com: patch monkeying]
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Reported-by: Dave Jones <davej@redhat.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Christoph Lameter <cl@linux.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Change parameter types of s390's compat ipc syscall from unsigned long
to compat_ulong_t to enforce zero extension of these parameters.
This is not really a bug, since s390_ipc compat syscall is only a
wrapper to the generic compat_sys_ipc() syscall, which performs correct
zero and sign extension.
This was introduced with commit 56e41d3c5a ("merge compat sys_ipc
instances").
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit d5dc77bfee ("consolidate compat lookup_dcookie()") coverted all
architectures to the new compat_sys_lookup_dcookie() syscall.
The "len" paramater of the new compat syscall must have the type
compat_size_t in order to enforce zero extension for architectures where
the ABI requires that the caller of a function performed zero and/or
sign extension to 64 bit of all parameters.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: <stable@vger.kernel.org> [v3.10+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We got a report that the pwritev syscall does not work correctly in
compat mode on s390.
It turned out that with commit 72ec35163f ("switch compat readv/writev
variants to COMPAT_SYSCALL_DEFINE") we lost the zero extension of a
couple of syscall parameters because the some parameter types haven't
been converted from unsigned long to compat_ulong_t.
This is needed for architectures where the ABI requires that the caller
of a function performed zero and/or sign extension to 64 bit of all
parameters.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: <stable@vger.kernel.org> [v3.10+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A few printk(KERN_*'s have snuck in there.
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The command line parsing takes place before jump labels are initialised
which generates a warning if numa_balancing= is specified and
CONFIG_JUMP_LABEL is set.
On older kernels before commit c4b2c0c5f6 ("static_key: WARN on usage
before jump_label_init was called") the kernel would have crashed. This
patch enables automatic numa balancing later in the initialisation
process if numa_balancing= is specified.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The VM is currently heavily tuned to avoid swapping. Whether that is
good or bad is a separate discussion, but as long as the VM won't swap
to make room for dirty cache, we can not consider anonymous pages when
calculating the amount of dirtyable memory, the baseline to which
dirty_background_ratio and dirty_ratio are applied.
A simple workload that occupies a significant size (40+%, depending on
memory layout, storage speeds etc.) of memory with anon/tmpfs pages and
uses the remainder for a streaming writer demonstrates this problem. In
that case, the actual cache pages are a small fraction of what is
considered dirtyable overall, which results in an relatively large
portion of the cache pages to be dirtied. As kswapd starts rotating
these, random tasks enter direct reclaim and stall on IO.
Only consider free pages and file pages dirtyable.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reported-by: Tejun Heo <tj@kernel.org>
Tested-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tejun reported stuttering and latency spikes on a system where random
tasks would enter direct reclaim and get stuck on dirty pages. Around
50% of memory was occupied by tmpfs backed by an SSD, and another disk
(rotating) was reading and writing at max speed to shrink a partition.
: The problem was pretty ridiculous. It's a 8gig machine w/ one ssd and 10k
: rpm harddrive and I could reliably reproduce constant stuttering every
: several seconds for as long as buffered IO was going on on the hard drive
: either with tmpfs occupying somewhere above 4gig or a test program which
: allocates about the same amount of anon memory. Although swap usage was
: zero, turning off swap also made the problem go away too.
:
: The trigger conditions seem quite plausible - high anon memory usage w/
: heavy buffered IO and swap configured - and it's highly likely that this
: is happening in the wild too. (this can happen with copying large files
: to usb sticks too, right?)
This patch (of 2):
The dirty_balance_reserve is an approximation of the fraction of free
pages that the page allocator does not make available for page cache
allocations. As a result, it has to be taken into account when
calculating the amount of "dirtyable memory", the baseline to which
dirty_background_ratio and dirty_ratio are applied.
However, currently the reserve is subtracted from the sum of free and
reclaimable pages, which is non-sensical and leads to erroneous results
when the system is dominated by unreclaimable pages and the
dirty_balance_reserve is bigger than free+reclaimable. In that case, at
least the already allocated cache should be considered dirtyable.
Fix the calculation by subtracting the reserve from the amount of free
pages, then adding the reclaimable pages on top.
[akpm@linux-foundation.org: fix CONFIG_HIGHMEM build]
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reported-by: Tejun Heo <tj@kernel.org>
Tested-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Prior to commit fe35004fbf ("mm: avoid swapping out with
swappiness==0") setting swappiness to 0, reclaim code could still evict
recently used user anonymous memory to swap even though there is a
significant amount of RAM used for page cache.
The behaviour of setting swappiness to 0 has since changed. When set,
the reclaim code does not initiate swap until the amount of free pages
and file-backed pages, is less than the high water mark in a zone.
Let's update the documentation to reflect this.
[akpm@linux-foundation.org: remove comma, per Randy]
Signed-off-by: Aaron Tomlin <atomlin@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Bryn M. Reeves <bmr@redhat.com>
Cc: Satoru Moriya <satoru.moriya@hds.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In the gen_pool_dma_alloc() the dma pointer can be NULL and while
assigning gen_pool_virt_to_phys(pool, vaddr) to dma caused the following
crash on da850 evm:
Unable to handle kernel NULL pointer dereference at virtual address 00000000
Internal error: Oops: 805 [#1] PREEMPT ARM
Modules linked in:
CPU: 0 PID: 1 Comm: swapper Tainted: G W 3.13.0-rc1-00001-g0609e45-dirty #5
task: c4830000 ti: c4832000 task.ti: c4832000
PC is at gen_pool_dma_alloc+0x30/0x3c
LR is at gen_pool_virt_to_phys+0x74/0x80
Process swapper, call trace:
gen_pool_dma_alloc+0x30/0x3c
davinci_pm_probe+0x40/0xa8
platform_drv_probe+0x1c/0x4c
driver_probe_device+0x98/0x22c
__driver_attach+0x8c/0x90
bus_for_each_dev+0x6c/0x8c
bus_add_driver+0x124/0x1d4
driver_register+0x78/0xf8
platform_driver_probe+0x20/0xa4
davinci_init_late+0xc/0x14
init_machine_late+0x1c/0x28
do_one_initcall+0x34/0x15c
kernel_init_freeable+0xe4/0x1ac
kernel_init+0x8/0xec
This patch fixes the above.
[akpm@linux-foundation.org: update kerneldoc]
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Nicolin Chen <b42378@freescale.com>
Cc: Joe Perches <joe@perches.com>
Cc: Sachin Kamat <sachin.kamat@linaro.org>
Cc: <stable@vger.kernel.org> [3.13.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull fanotify use-after-free fixes from Jan Kara:
"Three fixes for the fanotify use after free problems guys were
reporting.
I have ended up with different lifetime rules for struct
fanotify_event_info depending on whether it is for permission event or
normal event which isn't ideal. My plan is to split these into two
different structures (as permission events need larger struct anyway)
which will make the rules trivial again. But that can wait for later
I guess (but I can add the patch to the pile if you want), now I
wanted to make -rc1 boot for these guys"
[ "These guys" being Jiri Kosina and Dave Jones that reported the slab
corruption issues due to incorrect object lifetimes ]
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fanotify: Fix use after free for permission events
fsnotify: Do not return merged event from fsnotify_add_notify_event()
fanotify: Fix use after free in mask checking
The merge of commit 7221fe4c2e ("ceph: add acl for cephfs") raced with
upstream changes in the generic POSIX ACL code (eg commit 2aeccbe957
"fs: add generic xattr_acl handlers" and others).
Some of the fallout was fixed in commit 4db658ea0c ("ceph: Fix up after
semantic merge conflict"), but it was incomplete: the set_acl
inode_operation wasn't getting set, and the prototype needed to be
adjusted a bit (it doesn't take a dentry anymore).
Signed-off-by: Sage Weil <sage@inktank.com>
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If either idling channels or suspending the fence were to fail, the
display would never be resumed. Also if a client fails, resume the fence
(not functionally important, but it would potentially leak memory).
See https://bugs.freedesktop.org/show_bug.cgi?id=70213
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Fixes a regression introduced by d5c1e84b3a
"drm/nouveau: hold mutex while syncing to kernel channel".
Cc: stable@vger.kernel.org #3.13
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
The DRM uses the adjusted mode to calculate constants for vblank
timestamping. Our encoder mode_fixup (usually) replaces this data
with our backend mode information, which doesn't have the needed
data filled in already.
Reported-by: Mario Kleiner mario.kleiner.de@gmail.com
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Some DCE8 boards have a funky BlankCrtc table that results
in a timeout when trying to blank the display. The
timeout is harmless (all operations needed from the table
are complete), but wastes time and is confusing to users so
work around it.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=73420
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This is effectively a revert of 4573388c92.
Forcing a display active when there is none causes problems with
dpm on some SI boards which results in improperly initialized
dpm state and boot failures on some boards. As for the bug commit
4573388c92 tried to address, one can manually force the state to
high for better performance when using the card as a headless compute
node until a better fix is developed.
bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=73788https://bugs.freedesktop.org/show_bug.cgi?id=69395
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
cc: stable@vger.kernel.org
DCE5 and newer hardware only has 1 DAC. Use the correct
offset. This may fix display problems on certain board
configurations.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Linus Torvalds
Geert Uytterhoeven
Christoph Hellwig
Dave Airlie
Sonic Zhang
Ard Biesheuvel
Dan Williams
Yinghai Lu
Mark Rutland
Dave Hansen
Dave Jones
Heiko Carstens
Andrew Morton
Mel Gorman
Johannes Weiner
Aaron Tomlin
Lad, Prabhakar
Sage Weil
Ilia Mirkin
Maarten Lankhorst
Ben Skeggs
Alex Deucher