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Pull sparc updates from David Miller:
"Just a few small changes:
- Fix console naming inconsistency with hypervisor consoles, from
John Paul Adrian Glaubitz
- Fix userland compilation due to use of u_int, from Masahiro Yamada"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Add missing newline at end of file
sparc: fix unknown type name u_int in uapi header
sparc: configs: Remove useless UEVENT_HELPER_PATH
sparc: Remove redundant copy of the LGPL-2.0
sunhv: Fix device naming inconsistency between sunhv_console and sunhv_reg
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Pull networking fixes from David Miller:
1) Fix excessive stack usage in cxgb4, from Arnd Bergmann.
2) Missing skb queue lock init in tipc, from Chris Packham.
3) Fix some regressions in ipv6 flow label handling, from Eric Dumazet.
4) Elide flow dissection of local packets in FIB rules, from Petar
Penkov.
5) Fix TLS support build failure in mlx5, from Tariq Toukab.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (36 commits)
ppp: mppe: Revert "ppp: mppe: Add softdep to arc4"
net: dsa: qca8k: replace legacy gpio include
net: hisilicon: Use devm_platform_ioremap_resource
cxgb4: reduce kernel stack usage in cudbg_collect_mem_region()
tipc: ensure head->lock is initialised
tc-tests: updated skbedit tests
nfp: flower: ensure ip protocol is specified for L4 matches
nfp: flower: fix ethernet check on match fields
net/mlx5e: Provide cb_list pointer when setting up tc block on rep
net: phy: make exported variables non-static
net: sched: Fix NULL-pointer dereference in tc_indr_block_ing_cmd()
davinci_cpdma: don't cast dma_addr_t to pointer
net: openvswitch: do not update max_headroom if new headroom is equal to old headroom
net/mlx5e: Convert single case statement switch statements into if statements
net/mlx5: E-Switch, Reduce ingress acl modify metadata stack usage
net/mlx5e: Fix unused variable warning when CONFIG_MLX5_ESWITCH is off
net/mlx5e: Fix compilation error in TLS code
ipv6: fix static key imbalance in fl_create()
ipv6: fix potential crash in ip6_datagram_dst_update()
ipv6: tcp: fix flowlabels reflection for RST packets
...
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Pull IDE update from David Miller:
"Small cleanup"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
ide: use BIT() macro for defining bit-flags
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git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull MTD updates from Miquel Raynal:
"This contains the following changes for MTD:
MTD core changes:
- New Hyperbus framework
- New _is_locked (concat) implementation
- Various cleanups
NAND core changes:
- use longest matching pattern in ->exec_op() default parser
- export NAND operation tracer
- add flag to indicate panic_write in MTD
- use kzalloc() instead of kmalloc() and memset()
Raw NAND controller drivers changes:
- brcmnand:
- fix BCH ECC layout for large page NAND parts
- fallback to detected ecc-strength, ecc-step-size
- when oops in progress use pio and interrupt polling
- code refactor code to introduce helper functions
- add support for v7.3 controller
- FSMC:
- use nand_op_trace for operation tracing
- GPMI:
- move all driver code into single file
- various cleanups (including dmaengine changes)
- use runtime PM to manage clocks
- implement exec_op
- MTK:
- correct low level time calculation of r/w cycle
- improve data sampling timing for read cycle
- add validity check for CE# pin setting
- fix wrongly assigned OOB buffer pointer issue
- re-license MTK NAND driver as Dual MIT/GPL
- STM32:
- manage the get_irq error case
- increase DMA completion timeouts
Raw NAND chips drivers changes:
- Macronix: add read-retry support
Onenand driver changes:
- add support for 8Gb datasize chips
- avoid fall-through warnings
SPI-NAND changes:
- define macros for page-read ops with three-byte addresses
- add support for two-byte device IDs and then for GigaDevice
GD5F1GQ4UFxxG
- add initial support for Paragon PN26G0xA
- handle the case where the last page read has bitflips
SPI-NOR core changes:
- add support for the mt25ql02g and w25q16jv flashes
- print error in case of jedec read id fails
- is25lp256: add post BFPT fix to correct the addr_width
SPI NOR controller drivers changes:
- intel-spi: Add support for Intel Elkhart Lake SPI serial flash
- smt32: remove the driver as the driver was replaced by spi-stm32-qspi.c
- cadence-quadspi: add reset control"
* tag 'mtd/for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (60 commits)
mtd: concat: implement _is_locked mtd operation
mtd: concat: refactor concat_lock/concat_unlock
mtd: abi: do not use C++ style comments in uapi header
mtd: afs: remove unneeded NULL check
mtd: rawnand: stm32_fmc2: increase DMA completion timeouts
mtd: rawnand: Use kzalloc() instead of kmalloc() and memset()
mtd: hyperbus: Add driver for TI's HyperBus memory controller
mtd: spinand: read returns badly if the last page has bitflips
mtd: spinand: Add initial support for Paragon PN26G0xA
mtd: rawnand: mtk: Re-license MTK NAND driver as Dual MIT/GPL
mtd: rawnand: gpmi: remove double assignment to block_size
dt-bindings: mtd: brcmnand: Add brcmnand, brcmnand-v7.3 support
mtd: rawnand: brcmnand: Add support for v7.3 controller
mtd: rawnand: brcmnand: Refactored code to introduce helper functions
mtd: rawnand: brcmnand: When oops in progress use pio and interrupt polling
mtd: Add flag to indicate panic_write
mtd: rawnand: Add Macronix NAND read retry support
mtd: onenand: Avoid fall-through warnings
mtd: spinand: Add support for GigaDevice GD5F1GQ4UFxxG
mtd: spinand: Add support for two-byte device IDs
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mike Snitzer:
- Add encrypted byte-offset initialization vector (eboiv) to DM crypt.
- Add optional discard features to DM snapshot which allow freeing
space from a DM device whose free space was exhausted.
- Various small improvements to use struct_size() and kzalloc().
- Fix to check if DM thin metadata is in fail_io mode before attempting
to update the superblock to set the needs_check flag. Otherwise the
DM thin-pool can hang.
- Fix DM bufio shrinker's potential for ABBA recursion deadlock with DM
thin provisioning on loop usecase.
* tag 'for-5.3/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm bufio: fix deadlock with loop device
dm snapshot: add optional discard support features
dm crypt: implement eboiv - encrypted byte-offset initialization vector
dm crypt: remove obsolete comment about plumb IV
dm crypt: wipe private IV struct after key invalid flag is set
dm integrity: use kzalloc() instead of kmalloc() + memset()
dm: update stale comment in end_clone_bio()
dm log writes: fix incorrect comment about the logged sequence example
dm log writes: use struct_size() to calculate size of pending_block
dm crypt: use struct_size() when allocating encryption context
dm integrity: always set version on superblock update
dm thin metadata: check if in fail_io mode when setting needs_check
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Pull IPMI updates from Corey Minyard:
"Some small fixes for various things, nothing huge, mostly found by
automated tools.
Plus add a driver that allows Linux to act as an IPMB slave device, so
it can be a satellite MC in an IPMI network"
* tag 'for-linus-5.3' of git://github.com/cminyard/linux-ipmi:
docs: ipmb: place it at driver-api and convert to ReST
fix platform_no_drv_owner.cocci warnings
ipmi: ipmb: don't allocate i2c_client on stack
ipmi: ipmb: Fix build error while CONFIG_I2C is set to m
Add support for IPMB driver
drivers: ipmi: Drop device reference
ipmi_ssif: fix unexpected driver unregister warning
ipmi_si: use bool type for initialized variable
ipmi_si: fix unexpected driver unregister warning
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"This is the bulk of pin control changes for the v5.3 kernel cycle:
Core changes:
- Device links can optionally be added between a pin control producer
and its consumers. This will affect how the system power management
is handled: a pin controller will not suspend before all of its
consumers have been suspended.
This was necessary for the ST Microelectronics STMFX expander and
need to be tested on other systems as well: it makes sense to make
this default in the long run.
Right now it is opt-in per driver.
- Drive strength can be specified in microamps. With decreases in
silicon technology, milliamps isn't granular enough, let's make it
possible to select drive strengths in microamps.
Right now the Meson (AMlogic) driver needs this.
New drivers:
- New subdriver for the Tegra 194 SoC.
- New subdriver for the Qualcomm SDM845.
- New subdriver for the Qualcomm SM8150.
- New subdriver for the Freescale i.MX8MN (Freescale is now a product
line of NXP).
- New subdriver for Marvell MV98DX1135.
Driver improvements:
- The Bitmain BM1880 driver now supports pin config in addition to
muxing.
- The Qualcomm drivers can now reserve some GPIOs as taken aside and
not usable for users. This is used in ACPI systems to take out some
GPIO lines used by the BIOS so that noone else (neither kernel nor
userspace) will play with them by mistake and crash the machine.
- A slew of refurbishing around the Aspeed drivers (board management
controllers for servers) in preparation for the new Aspeed AST2600
SoC.
- A slew of improvements over the SH PFC drivers as usual.
- Misc cleanups and fixes"
* tag 'pinctrl-v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (106 commits)
pinctrl: aspeed: Strip moved macros and structs from private header
pinctrl: aspeed: Fix missed include
pinctrl: baytrail: Use GENMASK() consistently
pinctrl: baytrail: Re-use data structures from pinctrl-intel.h
pinctrl: baytrail: Use defined macro instead of magic in byt_get_gpio_mux()
pinctrl: qcom: Add SM8150 pinctrl driver
dt-bindings: pinctrl: qcom: Add SM8150 pinctrl binding
dt-bindings: pinctrl: qcom: Document missing gpio nodes
pinctrl: aspeed: Add implementation-related documentation
pinctrl: aspeed: Split out pinmux from general pinctrl
pinctrl: aspeed: Clarify comment about strapping W1C
pinctrl: aspeed: Correct comment that is no longer true
MAINTAINERS: Add entry for ASPEED pinctrl drivers
dt-bindings: pinctrl: aspeed: Convert AST2500 bindings to json-schema
dt-bindings: pinctrl: aspeed: Convert AST2400 bindings to json-schema
dt-bindings: pinctrl: aspeed: Split bindings document in two
pinctrl: qcom: Add irq_enable callback for msm gpio
pinctrl: madera: Fixup SPDX headers
pinctrl: qcom: sdm845: Fix CONFIG preprocessor guard
pinctrl: tegra: Add bitmask support for parked bits
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- an update to Elan touchpad SMBus driver to fetch device parameters
(size, resolution) while it is still in PS/2 mode, before switching
over to SMBus, as in that mode some devices return garbage dimensions
- update to iforce joystick driver
- miscellaneous driver fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (48 commits)
Input: gpio_keys_polled - allow specifying name of input device
Input: edt-ft5x06 - simplify event reporting code
Input: max77650-onkey - add MODULE_ALIAS()
Input: atmel_mxt_ts - fix leak in mxt_update_cfg()
Input: synaptics - enable SMBUS on T480 thinkpad trackpad
Input: atmel_mxt_ts - fix -Wunused-const-variable
Input: joydev - extend absolute mouse detection
HID: quirks: Refactor ELAN 400 and 401 handling
Input: elan_i2c - export the device id whitelist
Input: edt-ft5x06 - use get_unaligned_be16()
Input: iforce - add the Saitek R440 Force Wheel
Input: iforce - use unaligned accessors, where appropriate
Input: iforce - drop couple of temps from transport code
Input: iforce - drop bus type from iforce structure
Input: iforce - use DMA-safe buffores for USB transfers
Input: iforce - allow callers supply data buffer when fetching device IDs
Input: iforce - only call iforce_process_packet() if initialized
Input: iforce - signal command completion from transport code
Input: iforce - do not combine arguments for iforce_process_packet()
Input: iforce - factor out hat handling when parsing packets
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Pull io_uring updates from Jens Axboe:
"This contains:
- Support for recvmsg/sendmsg as first class opcodes.
I don't envision going much further down this path, as there are
plans in progress to support potentially any system call in an
async fashion through io_uring. But I think it does make sense to
have certain core ops available directly, especially those that can
support a "try this non-blocking" flag/mode. (me)
- Handle generic short reads automatically.
This can happen fairly easily if parts of the buffered read is
cached. Since the application needs to issue another request for
the remainder, just do this internally and save kernel/user
roundtrip while providing a nicer more robust API. (me)
- Support for linked SQEs.
This allows SQEs to depend on each other, enabling an application
to eg queue a read-from-this-file,write-to-that-file pair. (me)
- Fix race in stopping SQ thread (Jackie)"
* tag 'for-5.3/io_uring-20190711' of git://git.kernel.dk/linux-block:
io_uring: fix io_sq_thread_stop running in front of io_sq_thread
io_uring: add support for recvmsg()
io_uring: add support for sendmsg()
io_uring: add support for sqe links
io_uring: punt short reads to async context
uio: make import_iovec()/compat_import_iovec() return bytes on success
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Commit 0e5a610b5ca5 ("ppp: mppe: switch to RC4 library interface"),
which was merged through the crypto tree for v5.3, changed ppp_mppe.c to
use the new arc4_crypt() library function rather than access RC4 through
the dynamic crypto_skcipher API.
Meanwhile commit aad1dcc4f011 ("ppp: mppe: Add softdep to arc4") was
merged through the net tree and added a module soft-dependency on "arc4".
The latter commit no longer makes sense because the code now uses the
"libarc4" module rather than "arc4", and also due to the direct use of
arc4_crypt(), no module soft-dependency is required.
So revert the latter commit.
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
Pull dlm updates from David Teigland:
"This set removes some unnecessary debugfs error handling, and checks
that lowcomms workqueues are not NULL before destroying"
* tag 'dlm-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
dlm: no need to check return value of debugfs_create functions
dlm: check if workqueues are NULL before flushing/destroying
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Pull 9p updates from Dominique Martinet:
"Two small fixes to properly cleanup the 9p transports list if
virtio/xen module initialization fail.
9p might otherwise try to access memory from a module that failed to
register got freed"
* tag '9p-for-5.3' of git://github.com/martinetd/linux:
9p/xen: Add cleanup path in p9_trans_xen_init
9p/virtio: Add cleanup path in p9_virtio_init
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git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"In this round, we've introduced native swap file support which can
exploit DIO, enhanced existing checkpoint=disable feature with
additional mount option to tune the triggering condition, and allowed
user to preallocate physical blocks in a pinned file which will be
useful to avoid f2fs fragmentation in append-only workloads. In
addition, we've fixed subtle quota corruption issue.
Enhancements:
- add swap file support which uses DIO
- allocate blocks for pinned file
- allow SSR and mount option to enhance checkpoint=disable
- enhance IPU IOs
- add more sanity checks such as memory boundary access
Bug fixes:
- quota corruption in very corner case of error-injected SPO case
- fix root_reserved on remount and some wrong counts
- add missing fsck flag
Some patches were also introduced to clean up ambiguous i_flags and
debugging messages codes"
* tag 'f2fs-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (33 commits)
f2fs: improve print log in f2fs_sanity_check_ckpt()
f2fs: avoid out-of-range memory access
f2fs: fix to avoid long latency during umount
f2fs: allow all the users to pin a file
f2fs: support swap file w/ DIO
f2fs: allocate blocks for pinned file
f2fs: fix is_idle() check for discard type
f2fs: add a rw_sem to cover quota flag changes
f2fs: set SBI_NEED_FSCK for xattr corruption case
f2fs: use generic EFSBADCRC/EFSCORRUPTED
f2fs: Use DIV_ROUND_UP() instead of open-coding
f2fs: print kernel message if filesystem is inconsistent
f2fs: introduce f2fs_<level> macros to wrap f2fs_printk()
f2fs: avoid get_valid_blocks() for cleanup
f2fs: ioctl for removing a range from F2FS
f2fs: only set project inherit bit for directory
f2fs: separate f2fs i_flags from fs_flags and ext4 i_flags
f2fs: replace ktype default_attrs with default_groups
f2fs: Add option to limit required GC for checkpoint=disable
f2fs: Fix accounting for unusable blocks
...
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Pull xfs updates from Darrick Wong:
"In this release there are a significant amounts of consolidations and
cleanups in the log code; restructuring of the log to issue struct
bios directly; new bulkstat ioctls to return v5 fs inode information
(and fix all the padding problems of the old ioctl); the beginnings of
multithreaded inode walks (e.g. quotacheck); and a reduction in memory
usage in the online scrub code leading to reduced runtimes.
- Refactor inode geometry calculation into a single structure instead
of open-coding pieces everywhere.
- Add online repair to build options.
- Remove unnecessary function call flags and functions.
- Claim maintainership of various loose xfs documentation and header
files.
- Use struct bio directly for log buffer IOs instead of struct
xfs_buf.
- Reduce log item boilerplate code requirements.
- Merge log item code spread across too many files.
- Further distinguish between log item commits and cancellations.
- Various small cleanups to the ag small allocator.
- Support cgroup-aware writeback
- libxfs refactoring for mkfs cleanup
- Remove unneeded #includes
- Fix a memory allocation miscalculation in the new log bio code
- Fix bisection problems
- Fix a crash in ioend processing caused by tripping over freeing of
preallocated transactions
- Split out a generic inode walk mechanism from the bulkstat code,
hook up all the internal users to use the walking code, then clean
up bulkstat to serve only the bulkstat ioctls.
- Add a multithreaded iwalk implementation to speed up quotacheck on
fast storage with many CPUs.
- Remove unnecessary return values in logging teardown functions.
- Supplement the bstat and inogrp structures with new bulkstat and
inumbers structures that have all the fields we need for v5
filesystem features and none of the padding problems of their
predecessors.
- Wire up new ioctls that use the new structures with a much simpler
bulk_ireq structure at the head instead of the pointerhappy mess we
had before.
- Enable userspace to constrain bulkstat returns to a single AG or a
single special inode so that we can phase out a lot of geometry
guesswork in userspace.
- Reduce memory consumption and zeroing overhead in extended
attribute scrub code.
- Fix some behavioral regressions in the new bulkstat backend code.
- Fix some behavioral regressions in the new log bio code"
* tag 'xfs-5.3-merge-12' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (100 commits)
xfs: chain bios the right way around in xfs_rw_bdev
xfs: bump INUMBERS cursor correctly in xfs_inumbers_walk
xfs: don't update lastino for FSBULKSTAT_SINGLE
xfs: online scrub needn't bother zeroing its temporary buffer
xfs: only allocate memory for scrubbing attributes when we need it
xfs: refactor attr scrub memory allocation function
xfs: refactor extended attribute buffer pointer functions
xfs: attribute scrub should use seen_enough to pass error values
xfs: allow single bulkstat of special inodes
xfs: specify AG in bulk req
xfs: wire up the v5 inumbers ioctl
xfs: wire up new v5 bulkstat ioctls
xfs: introduce v5 inode group structure
xfs: introduce new v5 bulkstat structure
xfs: rename bulkstat functions
xfs: remove various bulk request typedef usage
fs: xfs: xfs_log: Change return type from int to void
xfs: poll waiting for quotacheck
xfs: multithreaded iwalk implementation
xfs: refactor INUMBERS to use iwalk functions
...
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git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull common SETFLAGS/FSSETXATTR parameter checking from Darrick Wong:
"Here's a patch series that sets up common parameter checking functions
for the FS_IOC_SETFLAGS and FS_IOC_FSSETXATTR ioctl implementations.
The goal here is to reduce the amount of behaviorial variance between
the filesystems where those ioctls originated (ext2 and XFS,
respectively) and everybody else.
- Standardize parameter checking for the SETFLAGS and FSSETXATTR
ioctls (which were the file attribute setters for ext4 and xfs and
have now been hoisted to the vfs)
- Only allow the DAX flag to be set on files and directories"
* tag 'vfs-fix-ioctl-checking-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
vfs: only allow FSSETXATTR to set DAX flag on files and dirs
vfs: teach vfs_ioc_fssetxattr_check to check extent size hints
vfs: teach vfs_ioc_fssetxattr_check to check project id info
vfs: create a generic checking function for FS_IOC_FSSETXATTR
vfs: create a generic checking and prep function for FS_IOC_SETFLAGS
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest updates from Shuah Khan:
"This Kselftest update for Linux 5.3-rc1 consists of build failure
fixes and minor code cleaning patch to remove duplicate headers"
* tag 'linux-kselftest-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
rseq/selftests: Fix Thumb mode build failure on arm32
kselftests: cgroup: remove duplicated include from test_freezer.c
selftests: timestamping: Fix SIOCGSTAMP undeclared build failure
selftests: dma-buf: Adding kernel config fragment CONFIG_UDMABUF=y
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kconfig updates from Masahiro Yamada:
- always require argument for --defconfig and remove the hard-coded
arch/$(ARCH)/defconfig path
- make arch/$(SRCARCH)/configs/defconfig the new default of defconfig
- some code cleanups
* tag 'kconfig-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kconfig: remove meaningless if-conditional in conf_read()
kconfig: Fix spelling of sym_is_changable
unicore32: rename unicore32_defconfig to defconfig
kconfig: make arch/*/configs/defconfig the default of KBUILD_DEFCONFIG
kconfig: add static qualifier to expand_string()
kconfig: require the argument of --defconfig
kconfig: remove always false ifeq ($(KBUILD_DEFCONFIG,) conditional
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- remove headers_{install,check}_all targets
- remove unreasonable 'depends on !UML' from CONFIG_SAMPLES
- re-implement 'make headers_install' more cleanly
- add new header-test-y syntax to compile-test headers
- compile-test exported headers to ensure they are compilable in
user-space
- compile-test headers under include/ to ensure they are self-contained
- remove -Waggregate-return, -Wno-uninitialized, -Wno-unused-value
flags
- add -Werror=unknown-warning-option for Clang
- add 128-bit built-in types support to genksyms
- fix missed rebuild of modules.builtin
- propagate 'No space left on device' error in fixdep to Make
- allow Clang to use its integrated assembler
- improve some coccinelle scripts
- add a new flag KBUILD_ABS_SRCTREE to request Kbuild to use absolute
path for $(srctree).
- do not ignore errors when compression utility is missing
- misc cleanups
* tag 'kbuild-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (49 commits)
kbuild: use -- separater intead of $(filter-out ...) for cc-cross-prefix
kbuild: Inform user to pass ARCH= for make mrproper
kbuild: fix compression errors getting ignored
kbuild: add a flag to force absolute path for srctree
kbuild: replace KBUILD_SRCTREE with boolean building_out_of_srctree
kbuild: remove src and obj from the top Makefile
scripts/tags.sh: remove unused environment variables from comments
scripts/tags.sh: drop SUBARCH support for ARM
kbuild: compile-test kernel headers to ensure they are self-contained
kheaders: include only headers into kheaders_data.tar.xz
kheaders: remove meaningless -R option of 'ls'
kbuild: support header-test-pattern-y
kbuild: do not create wrappers for header-test-y
kbuild: compile-test exported headers to ensure they are self-contained
init/Kconfig: add CONFIG_CC_CAN_LINK
kallsyms: exclude kasan local symbols on s390
kbuild: add more hints about SUBDIRS replacement
coccinelle: api/stream_open: treat all wait_.*() calls as blocking
coccinelle: put_device: Add a cast to an expression for an assignment
coccinelle: put_device: Adjust a message construction
...
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann:
"The asm-generic changes for 5.3 consist of a cleanup series to remove
ptrace.h from Christoph Hellwig, who explains:
'asm-generic/ptrace.h is a little weird in that it doesn't actually
implement any functionality, but it provided multiple layers of
macros that just implement trivial inline functions. We implement
those directly in the few architectures and be off with a much
simpler design.'
at https://lore.kernel.org/lkml/20190624054728.30966-1-hch@lst.de/"
* tag 'asm-generic-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
asm-generic: remove ptrace.h
x86: don't use asm-generic/ptrace.h
sh: don't use asm-generic/ptrace.h
powerpc: don't use asm-generic/ptrace.h
arm64: don't use asm-generic/ptrace.h
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 updates from Vasily Gorbik:
- Fix integer overflow during stack frame unwind with invalid
backchain.
- Cleanup unused symbol export in zcrypt code.
- Fix MIO addressing control activation in PCI code and expose its
usage via sysfs.
- Fix kernel image signature verification report presence detection.
- Fix irq registration in vfio-ap code.
- Add CPU measurement counters for newer machines.
- Add base DASD thin provisioning support and code cleanups.
* tag 's390-5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (21 commits)
s390/unwind: avoid int overflow in outside_of_stack
s390/zcrypt: remove the exporting of ap_query_configuration
s390/pci: add mio_enabled attribute
s390: fix setting of mio addressing control
s390/ipl: Fix detection of has_secure attribute
s390: vfio-ap: fix irq registration
s390/cpumf: Add extended counter set definitions for model 8561 and 8562
s390/dasd: Handle out-of-space constraint
s390/dasd: Add discard support for ESE volumes
s390/dasd: Use ALIGN_DOWN macro
s390/dasd: Make dasd_setup_queue() a discipline function
s390/dasd: Add new ioctl to release space
s390/dasd: Add dasd_sleep_on_queue_interruptible()
s390/dasd: Add missing intensity definition
s390/dasd: Fix whitespace
s390/dasd: Add dynamic formatting support for ESE volumes
s390/dasd: Recognise data for ESE volumes
s390/dasd: Put sub-order definitions in a separate section
s390/dasd: Make layout analysis ESE compatible
s390/dasd: Remove old defines and function
...
|
|
This patch replaces the legacy bulk gpio.h include
with the proper gpio/consumer.h variant. This was
caught by the kbuild test robot that was running
into an error because of this.
For more information why linux/gpio.h is bad can be found in:
commit 56a46b6144e7 ("gpio: Clarify that <linux/gpio.h> is legacy")
Reported-by: kbuild test robot <lkp@intel.com>
Link: https://www.spinics.net/lists/netdev/msg584447.html
Fixes: a653f2f538f9 ("net: dsa: qca8k: introduce reset via gpio feature")
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2
Pull arch/nios2 updates from Ley Foon Tan.
* tag 'nios2-v5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2:
nios2: configs: Remove useless UEVENT_HELPER_PATH
nios2: remove pointless second entry for CONFIG_TRACE_IRQFLAGS_SUPPORT
|
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Use devm_platform_ioremap_resource instead of
devm_ioremap_resource. Make the code simpler.
Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The cudbg_collect_mem_region() and cudbg_read_fw_mem() both use several
hundred kilobytes of kernel stack space. One gets inlined into the other,
which causes the stack usage to be combined beyond the warning limit
when building with clang:
drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c:1057:12: error: stack frame size of 1244 bytes in function 'cudbg_collect_mem_region' [-Werror,-Wframe-larger-than=]
Restructuring cudbg_collect_mem_region() lets clang do the same
optimization that gcc does and reuse the stack slots as it can
see that the large variables are never used together.
A better fix might be to avoid using cudbg_meminfo on the stack
altogether, but that requires a larger rewrite.
Fixes: a1c69520f785 ("cxgb4: collect MC memory dump")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Pull KVM updates from Paolo Bonzini:
"ARM:
- support for chained PMU counters in guests
- improved SError handling
- handle Neoverse N1 erratum #1349291
- allow side-channel mitigation status to be migrated
- standardise most AArch64 system register accesses to msr_s/mrs_s
- fix host MPIDR corruption on 32bit
- selftests ckleanups
x86:
- PMU event {white,black}listing
- ability for the guest to disable host-side interrupt polling
- fixes for enlightened VMCS (Hyper-V pv nested virtualization),
- new hypercall to yield to IPI target
- support for passing cstate MSRs through to the guest
- lots of cleanups and optimizations
Generic:
- Some txt->rST conversions for the documentation"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (128 commits)
Documentation: virtual: Add toctree hooks
Documentation: kvm: Convert cpuid.txt to .rst
Documentation: virtual: Convert paravirt_ops.txt to .rst
KVM: x86: Unconditionally enable irqs in guest context
KVM: x86: PMU Event Filter
kvm: x86: Fix -Wmissing-prototypes warnings
KVM: Properly check if "page" is valid in kvm_vcpu_unmap
KVM: arm/arm64: Initialise host's MPIDRs by reading the actual register
KVM: LAPIC: Retry tune per-vCPU timer_advance_ns if adaptive tuning goes insane
kvm: LAPIC: write down valid APIC registers
KVM: arm64: Migrate _elx sysreg accessors to msr_s/mrs_s
KVM: doc: Add API documentation on the KVM_REG_ARM_WORKAROUNDS register
KVM: arm/arm64: Add save/restore support for firmware workaround state
arm64: KVM: Propagate full Spectre v2 workaround state to KVM guests
KVM: arm/arm64: Support chained PMU counters
KVM: arm/arm64: Remove pmc->bitmask
KVM: arm/arm64: Re-create event when setting counter value
KVM: arm/arm64: Extract duplicated code to own function
KVM: arm/arm64: Rename kvm_pmu_{enable/disable}_counter functions
KVM: LAPIC: ARBPRI is a reserved register for x2APIC
...
|
|
tipc_named_node_up() creates a skb list. It passes the list to
tipc_node_xmit() which has some code paths that can call
skb_queue_purge() which relies on the list->lock being initialised.
The spin_lock is only needed if the messages end up on the receive path
but when the list is created in tipc_named_node_up() we don't
necessarily know if it is going to end up there.
Once all the skb list users are updated in tipc it will then be possible
to update them to use the unlocked variants of the skb list functions
and initialise the lock when we know the message will follow the receive
path.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
- Added mask upper bound test case
- Added mask validation test case
- Added mask replacement case
Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
John Hurley says:
====================
Fix bugs in NFP flower match offload
This patchset contains bug fixes for corner cases in the match fields of
flower offloads. The patches ensure that flows that should not be
supported are not (incorrectly) offloaded. These include rules that match
on layer 3 and/or 4 data without specified ethernet or ip protocol fields.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Flower rules on the NFP firmware are able to match on an IP protocol
field. When parsing rules in the driver, unknown IP protocols are only
rejected when further matches are to be carried out on layer 4 fields, as
the firmware will not be able to extract such fields from packets.
L4 protocol dissectors such as FLOW_DISSECTOR_KEY_PORTS are only parsed if
an IP protocol is specified. This leaves a loophole whereby a rule that
attempts to match on transport layer information such as port numbers but
does not explicitly give an IP protocol type can be incorrectly offloaded
(in this case with wildcard port numbers matches).
Fix this by rejecting the offload of flows that attempt to match on L4
information, not only when matching on an unknown IP protocol type, but
also when the protocol is wildcarded.
Fixes: 2a04784594f6 ("nfp: flower: check L4 matches on unknown IP protocols")
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
NFP firmware does not explicitly match on an ethernet type field. Rather,
each rule has a bitmask of match fields that can be used to infer the
ethernet type.
Currently, if a flower rule contains an unknown ethernet type, a check is
carried out for matches on other fields of the packet. If matches on
layer 3 or 4 are found, then the offload is rejected as firmware will not
be able to extract these fields from a packet with an ethernet type it
does not currently understand.
However, if a rule contains an unknown ethernet type without any L3 (or
above) matches then this will effectively be offloaded as a rule with a
wildcarded ethertype. This can lead to misclassifications on the firmware.
Fix this issue by rejecting all flower rules that specify a match on an
unknown ethernet type.
Further ensure correct offloads by moving the 'L3 and above' check to any
rule that does not specify an ethernet type and rejecting rules with
further matches. This means that we can still offload rules with a
wildcarded ethertype if they only match on L2 fields but will prevent
rules which match on further fields that we cannot be sure if the firmware
will be able to extract.
Fixes: af9d842c1354 ("nfp: extend flower add flow offload")
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyper-v updates from Sasha Levin:
- Add a module description to the Hyper-V vmbus module.
- Rework some vmbus code to separate architecture specifics out to
arch/x86/. This is part of the work of adding arm64 support to
Hyper-V.
* tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
Drivers: hv: vmbus: Break out ISA independent parts of mshyperv.h
drivers: hv: Add a module description line to the hv_vmbus driver
|
|
Recent refactoring of tc block offloads infrastructure introduced new
flow_block_cb_setup_simple() method intended to be used as unified way for
all drivers to register offload callbacks. However, commit that actually
extended all users (drivers) with block cb list and provided it to
flow_block infra missed mlx5 en_rep. This leads to following NULL-pointer
dereference when creating Qdisc:
[ 278.385175] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 278.393233] #PF: supervisor read access in kernel mode
[ 278.399446] #PF: error_code(0x0000) - not-present page
[ 278.405847] PGD 8000000850e73067 P4D 8000000850e73067 PUD 8620cd067 PMD 0
[ 278.414141] Oops: 0000 [#1] SMP PTI
[ 278.419019] CPU: 7 PID: 3369 Comm: tc Not tainted 5.2.0-rc6+ #492
[ 278.426580] Hardware name: Supermicro SYS-2028TP-DECR/X10DRT-P, BIOS 2.0b 03/30/2017
[ 278.435853] RIP: 0010:flow_block_cb_setup_simple+0xc4/0x190
[ 278.442953] Code: 10 48 89 42 08 48 89 10 48 b8 00 01 00 00 00 00 ad de 49 89 00 48 05 00 01 00 00 49 89 40 08 31 c0 c3 b8 a1 ff ff ff c3 f3 c3 <48> 8b 06 48 39 c6 75 0a eb 1a 48 8b 00 48 39 c6 74 12
48 3b 50 28
[ 278.464829] RSP: 0018:ffffaf07c3f97990 EFLAGS: 00010246
[ 278.471648] RAX: 0000000000000000 RBX: ffff9b43ed4c7680 RCX: ffff9b43d5f80840
[ 278.480408] RDX: ffffffffc0491650 RSI: 0000000000000000 RDI: ffffaf07c3f97998
[ 278.489110] RBP: ffff9b43ddff9000 R08: ffff9b43d5f80840 R09: 0000000000000001
[ 278.497838] R10: 0000000000000009 R11: 00000000000003ad R12: ffffaf07c3f97c08
[ 278.506595] R13: ffff9b43d5f80000 R14: ffff9b43ed4c7680 R15: ffff9b43dfa20b40
[ 278.515374] FS: 00007f796be1b400(0000) GS:ffff9b43ef840000(0000) knlGS:0000000000000000
[ 278.525099] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 278.532453] CR2: 0000000000000000 CR3: 0000000840398002 CR4: 00000000001606e0
[ 278.541197] Call Trace:
[ 278.545252] tcf_block_offload_cmd.isra.52+0x7e/0xb0
[ 278.551871] tcf_block_get_ext+0x365/0x3e0
[ 278.557569] qdisc_create+0x15c/0x4e0
[ 278.562859] ? kmem_cache_alloc_trace+0x1a2/0x1c0
[ 278.569235] tc_modify_qdisc+0x1c8/0x780
[ 278.574761] rtnetlink_rcv_msg+0x291/0x340
[ 278.580518] ? _cond_resched+0x15/0x40
[ 278.585856] ? rtnl_calcit.isra.29+0x120/0x120
[ 278.591868] netlink_rcv_skb+0x4a/0x110
[ 278.597198] netlink_unicast+0x1a0/0x250
[ 278.602601] netlink_sendmsg+0x2c1/0x3c0
[ 278.608022] sock_sendmsg+0x5b/0x60
[ 278.612969] ___sys_sendmsg+0x289/0x310
[ 278.618231] ? do_wp_page+0x99/0x730
[ 278.623216] ? page_add_new_anon_rmap+0xbe/0x140
[ 278.629298] ? __handle_mm_fault+0xc84/0x1360
[ 278.635113] ? __sys_sendmsg+0x5e/0xa0
[ 278.640285] __sys_sendmsg+0x5e/0xa0
[ 278.645239] do_syscall_64+0x5b/0x1b0
[ 278.650274] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 278.656697] RIP: 0033:0x7f796abdeb87
[ 278.661628] Code: 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 80 00 00 00 00 8b 05 6a 2b 2c 00 48 63 d2 48 63 ff 85 c0 75 18 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 59 f3 c3 0f 1f 80 00 00 00 00 53
48 89 f3 48
[ 278.683248] RSP: 002b:00007ffde213ba48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 278.692245] RAX: ffffffffffffffda RBX: 000000005d261e6f RCX: 00007f796abdeb87
[ 278.700862] RDX: 0000000000000000 RSI: 00007ffde213bab0 RDI: 0000000000000003
[ 278.709527] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000006
[ 278.718167] R10: 000000000000000c R11: 0000000000000246 R12: 0000000000000001
[ 278.726743] R13: 000000000067b580 R14: 0000000000000000 R15: 0000000000000000
[ 278.735302] Modules linked in: dummy vxlan ip6_udp_tunnel udp_tunnel sch_ingress nfsv3 nfs_acl nfs lockd grace fscache bridge stp llc sunrpc mlx5_ib ib_uverbs intel_rapl ib_core sb_edac x86_pkg_temp_
thermal intel_powerclamp coretemp kvm_intel kvm mlx5_core irqbypass crct10dif_pclmul crc32_pclmul crc32c_intel igb ghash_clmulni_intel ses mei_me enclosure mlxfw ipmi_ssif intel_cstate iTCO_wdt ptp mei
pps_core iTCO_vendor_support pcspkr joydev intel_uncore i2c_i801 ipmi_si lpc_ich intel_rapl_perf ioatdma wmi dca pcc_cpufreq ipmi_devintf ipmi_msghandler acpi_power_meter acpi_pad ast i2c_algo_bit drm_k
ms_helper ttm drm mpt3sas raid_class scsi_transport_sas
[ 278.802263] CR2: 0000000000000000
[ 278.807170] ---[ end trace b1f0a442a279e66f ]---
Extend en_rep with new static mlx5e_rep_block_cb_list list and pass it to
flow_block_cb_setup_simple() function instead of hardcoded NULL pointer.
Fixes: 955bcb6ea0df ("drivers: net: use flow block API")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The variables phy_basic_ports_array, phy_fibre_port_array and
phy_all_ports_features_array are declared static and marked
EXPORT_SYMBOL_GPL(), which is at best an odd combination.
Because the variables were decided to be a part of API, this commit
removes the static attributes and adds the declarations to the header.
Fixes: 3c1bcc8614db ("net: ethernet: Convert phydev advertize and supported from u32 to link mode")
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
After recent refactoring of block offlads infrastructure, indr_dev->block
pointer is dereferenced before it is verified to be non-NULL. Example stack
trace where this behavior leads to NULL-pointer dereference error when
creating vxlan dev on system with mlx5 NIC with offloads enabled:
[ 1157.852938] ==================================================================
[ 1157.866877] BUG: KASAN: null-ptr-deref in tc_indr_block_ing_cmd.isra.41+0x9c/0x160
[ 1157.880877] Read of size 4 at addr 0000000000000090 by task ip/3829
[ 1157.901637] CPU: 22 PID: 3829 Comm: ip Not tainted 5.2.0-rc6+ #488
[ 1157.914438] Hardware name: Supermicro SYS-2028TP-DECR/X10DRT-P, BIOS 2.0b 03/30/2017
[ 1157.929031] Call Trace:
[ 1157.938318] dump_stack+0x9a/0xeb
[ 1157.948362] ? tc_indr_block_ing_cmd.isra.41+0x9c/0x160
[ 1157.960262] ? tc_indr_block_ing_cmd.isra.41+0x9c/0x160
[ 1157.972082] __kasan_report+0x176/0x192
[ 1157.982513] ? tc_indr_block_ing_cmd.isra.41+0x9c/0x160
[ 1157.994348] kasan_report+0xe/0x20
[ 1158.004324] tc_indr_block_ing_cmd.isra.41+0x9c/0x160
[ 1158.015950] ? tcf_block_setup+0x430/0x430
[ 1158.026558] ? kasan_unpoison_shadow+0x30/0x40
[ 1158.037464] __tc_indr_block_cb_register+0x5f5/0xf20
[ 1158.049288] ? mlx5e_rep_indr_tc_block_unbind+0xa0/0xa0 [mlx5_core]
[ 1158.062344] ? tc_indr_block_dev_put.part.47+0x5c0/0x5c0
[ 1158.074498] ? rdma_roce_rescan_device+0x20/0x20 [ib_core]
[ 1158.086580] ? br_device_event+0x98/0x480 [bridge]
[ 1158.097870] ? strcmp+0x30/0x50
[ 1158.107578] mlx5e_nic_rep_netdevice_event+0xdd/0x180 [mlx5_core]
[ 1158.120212] notifier_call_chain+0x6d/0xa0
[ 1158.130753] register_netdevice+0x6fc/0x7e0
[ 1158.141322] ? netdev_change_features+0xa0/0xa0
[ 1158.152218] ? vxlan_config_apply+0x210/0x310 [vxlan]
[ 1158.163593] __vxlan_dev_create+0x2ad/0x520 [vxlan]
[ 1158.174770] ? vxlan_changelink+0x490/0x490 [vxlan]
[ 1158.185870] ? rcu_read_unlock+0x60/0x60 [vxlan]
[ 1158.196798] vxlan_newlink+0x99/0xf0 [vxlan]
[ 1158.207303] ? __vxlan_dev_create+0x520/0x520 [vxlan]
[ 1158.218601] ? rtnl_create_link+0x3d0/0x450
[ 1158.228900] __rtnl_newlink+0x8a7/0xb00
[ 1158.238701] ? stack_access_ok+0x35/0x80
[ 1158.248450] ? rtnl_link_unregister+0x1a0/0x1a0
[ 1158.258735] ? find_held_lock+0x6d/0xd0
[ 1158.268379] ? is_bpf_text_address+0x67/0xf0
[ 1158.278330] ? lock_acquire+0xc1/0x1f0
[ 1158.287686] ? is_bpf_text_address+0x5/0xf0
[ 1158.297449] ? is_bpf_text_address+0x86/0xf0
[ 1158.307310] ? kernel_text_address+0xec/0x100
[ 1158.317155] ? arch_stack_walk+0x92/0xe0
[ 1158.326497] ? __kernel_text_address+0xe/0x30
[ 1158.336213] ? unwind_get_return_address+0x2f/0x50
[ 1158.346267] ? create_prof_cpu_mask+0x20/0x20
[ 1158.355936] ? arch_stack_walk+0x92/0xe0
[ 1158.365117] ? stack_trace_save+0x8a/0xb0
[ 1158.374272] ? stack_trace_consume_entry+0x80/0x80
[ 1158.384226] ? match_held_lock+0x33/0x210
[ 1158.393216] ? kasan_unpoison_shadow+0x30/0x40
[ 1158.402593] rtnl_newlink+0x53/0x80
[ 1158.410925] rtnetlink_rcv_msg+0x3a5/0x600
[ 1158.419777] ? validate_linkmsg+0x400/0x400
[ 1158.428620] ? find_held_lock+0x6d/0xd0
[ 1158.437117] ? match_held_lock+0x1b/0x210
[ 1158.445760] ? validate_linkmsg+0x400/0x400
[ 1158.454642] netlink_rcv_skb+0xc7/0x1f0
[ 1158.463150] ? netlink_ack+0x470/0x470
[ 1158.471538] ? netlink_deliver_tap+0x1f3/0x5a0
[ 1158.480607] netlink_unicast+0x2ae/0x350
[ 1158.489099] ? netlink_attachskb+0x340/0x340
[ 1158.497935] ? _copy_from_iter_full+0xde/0x3b0
[ 1158.506945] ? __virt_addr_valid+0xb6/0xf0
[ 1158.515578] ? __check_object_size+0x159/0x240
[ 1158.524515] netlink_sendmsg+0x4d3/0x630
[ 1158.532879] ? netlink_unicast+0x350/0x350
[ 1158.541400] ? netlink_unicast+0x350/0x350
[ 1158.549805] sock_sendmsg+0x94/0xa0
[ 1158.557561] ___sys_sendmsg+0x49d/0x570
[ 1158.565625] ? copy_msghdr_from_user+0x210/0x210
[ 1158.574457] ? __fput+0x1e2/0x330
[ 1158.581948] ? __kasan_slab_free+0x130/0x180
[ 1158.590407] ? kmem_cache_free+0xb6/0x2d0
[ 1158.598574] ? mark_lock+0xc7/0x790
[ 1158.606177] ? task_work_run+0xcf/0x100
[ 1158.614165] ? exit_to_usermode_loop+0x102/0x110
[ 1158.622954] ? __lock_acquire+0x963/0x1ee0
[ 1158.631199] ? lockdep_hardirqs_on+0x260/0x260
[ 1158.639777] ? match_held_lock+0x1b/0x210
[ 1158.647918] ? lockdep_hardirqs_on+0x260/0x260
[ 1158.656501] ? match_held_lock+0x1b/0x210
[ 1158.664643] ? __fget_light+0xa6/0xe0
[ 1158.672423] ? __sys_sendmsg+0xd2/0x150
[ 1158.680334] __sys_sendmsg+0xd2/0x150
[ 1158.688063] ? __ia32_sys_shutdown+0x30/0x30
[ 1158.696435] ? lock_downgrade+0x2e0/0x2e0
[ 1158.704541] ? mark_held_locks+0x1a/0x90
[ 1158.712611] ? mark_held_locks+0x1a/0x90
[ 1158.720619] ? do_syscall_64+0x1e/0x2c0
[ 1158.728530] do_syscall_64+0x78/0x2c0
[ 1158.736254] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 1158.745414] RIP: 0033:0x7f62d505cb87
[ 1158.753070] Code: 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 80 00 00 00 00 8b 05 6a 2b 2c 00 48 63 d2 48 63 ff 85 c0 75 18 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 59 f3 c3 0f 1f 80 00 00[87/1817]
48 89 f3 48
[ 1158.780924] RSP: 002b:00007fffd9832268 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 1158.793204] RAX: ffffffffffffffda RBX: 000000005d26048f RCX: 00007f62d505cb87
[ 1158.805111] RDX: 0000000000000000 RSI: 00007fffd98322d0 RDI: 0000000000000003
[ 1158.817055] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000006
[ 1158.828987] R10: 00007f62d50ce260 R11: 0000000000000246 R12: 0000000000000001
[ 1158.840909] R13: 000000000067e540 R14: 0000000000000000 R15: 000000000067ed20
[ 1158.852873] ==================================================================
Introduce new function tcf_block_non_null_shared() that verifies block
pointer before dereferencing it to obtain index. Use the function in
tc_indr_block_ing_cmd() to prevent NULL pointer dereference.
Fixes: 955bcb6ea0df ("drivers: net: use flow block API")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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dma_addr_t may be 64-bit wide on 32-bit architectures, so it is not
valid to cast between it and a pointer:
drivers/net/ethernet/ti/davinci_cpdma.c: In function 'cpdma_chan_submit_si':
drivers/net/ethernet/ti/davinci_cpdma.c:1047:12: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
drivers/net/ethernet/ti/davinci_cpdma.c: In function 'cpdma_chan_idle_submit_mapped':
drivers/net/ethernet/ti/davinci_cpdma.c:1114:12: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
drivers/net/ethernet/ti/davinci_cpdma.c: In function 'cpdma_chan_submit_mapped':
drivers/net/ethernet/ti/davinci_cpdma.c:1164:12: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
Solve this by using two separate members in 'struct submit_info'.
Since this avoids the use of the 'flag' member, the structure does
not even grow in typical configurations.
Fixes: 6670acacd59e ("net: ethernet: ti: davinci_cpdma: add dma mapped submit")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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headroom
When a vport is deleted, the maximum headroom size would be changed.
If the vport which has the largest headroom is deleted,
the new max_headroom would be set.
But, if the new headroom size is equal to the old headroom size,
updating routine is unnecessary.
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Tested-by: Greg Rose <gvrose8192@gmail.com>
Reviewed-by: Greg Rose <gvrose8192@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull dma-mapping updates from Christoph Hellwig:
- move the USB special case that bounced DMA through a device bar into
the USB code instead of handling it in the common DMA code (Laurentiu
Tudor and Fredrik Noring)
- don't dip into the global CMA pool for single page allocations
(Nicolin Chen)
- fix a crash when allocating memory for the atomic pool failed during
boot (Florian Fainelli)
- move support for MIPS-style uncached segments to the common code and
use that for MIPS and nios2 (me)
- make support for DMA_ATTR_NON_CONSISTENT and
DMA_ATTR_NO_KERNEL_MAPPING generic (me)
- convert nds32 to the generic remapping allocator (me)
* tag 'dma-mapping-5.3' of git://git.infradead.org/users/hch/dma-mapping: (29 commits)
dma-mapping: mark dma_alloc_need_uncached as __always_inline
MIPS: only select ARCH_HAS_UNCACHED_SEGMENT for non-coherent platforms
usb: host: Fix excessive alignment restriction for local memory allocations
lib/genalloc.c: Add algorithm, align and zeroed family of DMA allocators
nios2: use the generic uncached segment support in dma-direct
nds32: use the generic remapping allocator for coherent DMA allocations
arc: use the generic remapping allocator for coherent DMA allocations
dma-direct: handle DMA_ATTR_NO_KERNEL_MAPPING in common code
dma-direct: handle DMA_ATTR_NON_CONSISTENT in common code
dma-mapping: add a dma_alloc_need_uncached helper
openrisc: remove the partial DMA_ATTR_NON_CONSISTENT support
arc: remove the partial DMA_ATTR_NON_CONSISTENT support
arm-nommu: remove the partial DMA_ATTR_NON_CONSISTENT support
ARM: dma-mapping: allow larger DMA mask than supported
dma-mapping: truncate dma masks to what dma_addr_t can hold
iommu/dma: Apply dma_{alloc,free}_contiguous functions
dma-remap: Avoid de-referencing NULL atomic_pool
MIPS: use the generic uncached segment support in dma-direct
dma-direct: provide generic support for uncached kernel segments
au1100fb: fix DMA API abuse
...
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parameter const
Fix Linus' merge error in the parent commit, causing:
drivers/hwtracing/coresight/coresight.c:1051:11: error: incompatible pointer types passing 'int (struct device *, void *)' to parameter of type 'int (*)(struct device *, const void *)' [-Werror,-Wincompatible-pointer-types]
coresight_device_fwnode_match);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/device.h:173:17: note: passing argument to parameter 'match' here
int (*match)(struct device *dev, const void *data));
^
due to missed header file fixup.
Fixes: f632a8170a6b ("Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core")
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
[ Greg even sent this patch with his pull request, but I stupidly
thought it was the merge resolution fix I had already done as part of
the merge. But no, this was the extra fix for the header file
that goes with the definition I _had_ caught - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core and debugfs updates from Greg KH:
"Here is the "big" driver core and debugfs changes for 5.3-rc1
It's a lot of different patches, all across the tree due to some api
changes and lots of debugfs cleanups.
Other than the debugfs cleanups, in this set of changes we have:
- bus iteration function cleanups
- scripts/get_abi.pl tool to display and parse Documentation/ABI
entries in a simple way
- cleanups to Documenatation/ABI/ entries to make them parse easier
due to typos and other minor things
- default_attrs use for some ktype users
- driver model documentation file conversions to .rst
- compressed firmware file loading
- deferred probe fixes
All of these have been in linux-next for a while, with a bunch of
merge issues that Stephen has been patient with me for"
* tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (102 commits)
debugfs: make error message a bit more verbose
orangefs: fix build warning from debugfs cleanup patch
ubifs: fix build warning after debugfs cleanup patch
driver: core: Allow subsystems to continue deferring probe
drivers: base: cacheinfo: Ensure cpu hotplug work is done before Intel RDT
arch_topology: Remove error messages on out-of-memory conditions
lib: notifier-error-inject: no need to check return value of debugfs_create functions
swiotlb: no need to check return value of debugfs_create functions
ceph: no need to check return value of debugfs_create functions
sunrpc: no need to check return value of debugfs_create functions
ubifs: no need to check return value of debugfs_create functions
orangefs: no need to check return value of debugfs_create functions
nfsd: no need to check return value of debugfs_create functions
lib: 842: no need to check return value of debugfs_create functions
debugfs: provide pr_fmt() macro
debugfs: log errors when something goes wrong
drivers: s390/cio: Fix compilation warning about const qualifiers
drivers: Add generic helper to match by of_node
driver_find_device: Unify the match function with class_find_device()
bus_find_device: Unify the match callback with class_find_device
...
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Merge updates from Andrew Morton:
"Am experimenting with splitting MM up into identifiable subsystems
perhaps with a view to gitifying it in complex ways. Also with more
verbose "incoming" emails.
Most of MM is here and a few other trees.
Subsystems affected by this patch series:
- hotfixes
- iommu
- scripts
- arch/sh
- ocfs2
- mm:slab-generic
- mm:slub
- mm:kmemleak
- mm:kasan
- mm:cleanups
- mm:debug
- mm:pagecache
- mm:swap
- mm:memcg
- mm:gup
- mm:pagemap
- mm:infrastructure
- mm:vmalloc
- mm:initialization
- mm:pagealloc
- mm:vmscan
- mm:tools
- mm:proc
- mm:ras
- mm:oom-kill
hotfixes:
mm: vmscan: scan anonymous pages on file refaults
mm/nvdimm: add is_ioremap_addr and use that to check ioremap address
mm/memcontrol: fix wrong statistics in memory.stat
mm/z3fold.c: lock z3fold page before __SetPageMovable()
nilfs2: do not use unexported cpu_to_le32()/le32_to_cpu() in uapi header
MAINTAINERS: nilfs2: update email address
iommu:
include/linux/dmar.h: replace single-char identifiers in macros
scripts:
scripts/decode_stacktrace: match basepath using shell prefix operator, not regex
scripts/decode_stacktrace: look for modules with .ko.debug extension
scripts/spelling.txt: drop "sepc" from the misspelling list
scripts/spelling.txt: add spelling fix for prohibited
scripts/decode_stacktrace: Accept dash/underscore in modules
scripts/spelling.txt: add more spellings to spelling.txt
arch/sh:
arch/sh/configs/sdk7786_defconfig: remove CONFIG_LOGFS
sh: config: remove left-over BACKLIGHT_LCD_SUPPORT
sh: prevent warnings when using iounmap
ocfs2:
fs: ocfs: fix spelling mistake "hearbeating" -> "heartbeat"
ocfs2/dlm: use struct_size() helper
ocfs2: add last unlock times in locking_state
ocfs2: add locking filter debugfs file
ocfs2: add first lock wait time in locking_state
ocfs: no need to check return value of debugfs_create functions
fs/ocfs2/dlmglue.c: unneeded variable: "status"
ocfs2: use kmemdup rather than duplicating its implementation
mm:slab-generic:
Patch series "mm/slab: Improved sanity checking":
mm/slab: validate cache membership under freelist hardening
mm/slab: sanity-check page type when looking up cache
lkdtm/heap: add tests for freelist hardening
mm:slub:
mm/slub.c: avoid double string traverse in kmem_cache_flags()
slub: don't panic for memcg kmem cache creation failure
mm:kmemleak:
mm/kmemleak.c: fix check for softirq context
mm/kmemleak.c: change error at _write when kmemleak is disabled
docs: kmemleak: add more documentation details
mm:kasan:
mm/kasan: print frame description for stack bugs
Patch series "Bitops instrumentation for KASAN", v5:
lib/test_kasan: add bitops tests
x86: use static_cpu_has in uaccess region to avoid instrumentation
asm-generic, x86: add bitops instrumentation for KASAN
Patch series "mm/kasan: Add object validation in ksize()", v3:
mm/kasan: introduce __kasan_check_{read,write}
mm/kasan: change kasan_check_{read,write} to return boolean
lib/test_kasan: Add test for double-kzfree detection
mm/slab: refactor common ksize KASAN logic into slab_common.c
mm/kasan: add object validation in ksize()
mm:cleanups:
include/linux/pfn_t.h: remove pfn_t_to_virt()
Patch series "remove ARCH_SELECT_MEMORY_MODEL where it has no effect":
arm: remove ARCH_SELECT_MEMORY_MODEL
s390: remove ARCH_SELECT_MEMORY_MODEL
sparc: remove ARCH_SELECT_MEMORY_MODEL
mm/gup.c: make follow_page_mask() static
mm/memory.c: trivial clean up in insert_page()
mm: make !CONFIG_HUGE_PAGE wrappers into static inlines
include/linux/mm_types.h: ifdef struct vm_area_struct::swap_readahead_info
mm: remove the account_page_dirtied export
mm/page_isolation.c: change the prototype of undo_isolate_page_range()
include/linux/vmpressure.h: use spinlock_t instead of struct spinlock
mm: remove the exporting of totalram_pages
include/linux/pagemap.h: document trylock_page() return value
mm:debug:
mm/failslab.c: by default, do not fail allocations with direct reclaim only
Patch series "debug_pagealloc improvements":
mm, debug_pagelloc: use static keys to enable debugging
mm, page_alloc: more extensive free page checking with debug_pagealloc
mm, debug_pagealloc: use a page type instead of page_ext flag
mm:pagecache:
Patch series "fix filler_t callback type mismatches", v2:
mm/filemap.c: fix an overly long line in read_cache_page
mm/filemap: don't cast ->readpage to filler_t for do_read_cache_page
jffs2: pass the correct prototype to read_cache_page
9p: pass the correct prototype to read_cache_page
mm/filemap.c: correct the comment about VM_FAULT_RETRY
mm:swap:
mm, swap: fix race between swapoff and some swap operations
mm/swap_state.c: simplify total_swapcache_pages() with get_swap_device()
mm, swap: use rbtree for swap_extent
mm/mincore.c: fix race between swapoff and mincore
mm:memcg:
memcg, oom: no oom-kill for __GFP_RETRY_MAYFAIL
memcg, fsnotify: no oom-kill for remote memcg charging
mm, memcg: introduce memory.events.local
mm: memcontrol: dump memory.stat during cgroup OOM
Patch series "mm: reparent slab memory on cgroup removal", v7:
mm: memcg/slab: postpone kmem_cache memcg pointer initialization to memcg_link_cache()
mm: memcg/slab: rename slab delayed deactivation functions and fields
mm: memcg/slab: generalize postponed non-root kmem_cache deactivation
mm: memcg/slab: introduce __memcg_kmem_uncharge_memcg()
mm: memcg/slab: unify SLAB and SLUB page accounting
mm: memcg/slab: don't check the dying flag on kmem_cache creation
mm: memcg/slab: synchronize access to kmem_cache dying flag using a spinlock
mm: memcg/slab: rework non-root kmem_cache lifecycle management
mm: memcg/slab: stop setting page->mem_cgroup pointer for slab pages
mm: memcg/slab: reparent memcg kmem_caches on cgroup removal
mm, memcg: add a memcg_slabinfo debugfs file
mm:gup:
Patch series "switch the remaining architectures to use generic GUP", v4:
mm: use untagged_addr() for get_user_pages_fast addresses
mm: simplify gup_fast_permitted
mm: lift the x86_32 PAE version of gup_get_pte to common code
MIPS: use the generic get_user_pages_fast code
sh: add the missing pud_page definition
sh: use the generic get_user_pages_fast code
sparc64: add the missing pgd_page definition
sparc64: define untagged_addr()
sparc64: use the generic get_user_pages_fast code
mm: rename CONFIG_HAVE_GENERIC_GUP to CONFIG_HAVE_FAST_GUP
mm: reorder code blocks in gup.c
mm: consolidate the get_user_pages* implementations
mm: validate get_user_pages_fast flags
mm: move the powerpc hugepd code to mm/gup.c
mm: switch gup_hugepte to use try_get_compound_head
mm: mark the page referenced in gup_hugepte
mm/gup: speed up check_and_migrate_cma_pages() on huge page
mm/gup.c: remove some BUG_ONs from get_gate_page()
mm/gup.c: mark undo_dev_pagemap as __maybe_unused
mm:pagemap:
asm-generic, x86: introduce generic pte_{alloc,free}_one[_kernel]
alpha: switch to generic version of pte allocation
arm: switch to generic version of pte allocation
arm64: switch to generic version of pte allocation
csky: switch to generic version of pte allocation
m68k: sun3: switch to generic version of pte allocation
mips: switch to generic version of pte allocation
nds32: switch to generic version of pte allocation
nios2: switch to generic version of pte allocation
parisc: switch to generic version of pte allocation
riscv: switch to generic version of pte allocation
um: switch to generic version of pte allocation
unicore32: switch to generic version of pte allocation
mm/pgtable: drop pgtable_t variable from pte_fn_t functions
mm/memory.c: fail when offset == num in first check of __vm_map_pages()
mm:infrastructure:
mm/mmu_notifier: use hlist_add_head_rcu()
mm:vmalloc:
Patch series "Some cleanups for the KVA/vmalloc", v5:
mm/vmalloc.c: remove "node" argument
mm/vmalloc.c: preload a CPU with one object for split purpose
mm/vmalloc.c: get rid of one single unlink_va() when merge
mm/vmalloc.c: switch to WARN_ON() and move it under unlink_va()
mm/vmalloc.c: spelling> s/informaion/information/
mm:initialization:
mm/large system hash: use vmalloc for size > MAX_ORDER when !hashdist
mm/large system hash: clear hashdist when only one node with memory is booted
mm:pagealloc:
arm64: move jump_label_init() before parse_early_param()
Patch series "add init_on_alloc/init_on_free boot options", v10:
mm: security: introduce init_on_alloc=1 and init_on_free=1 boot options
mm: init: report memory auto-initialization features at boot time
mm:vmscan:
mm: vmscan: remove double slab pressure by inc'ing sc->nr_scanned
mm: vmscan: correct some vmscan counters for THP swapout
mm:tools:
tools/vm/slabinfo: order command line options
tools/vm/slabinfo: add partial slab listing to -X
tools/vm/slabinfo: add option to sort by partial slabs
tools/vm/slabinfo: add sorting info to help menu
mm:proc:
proc: use down_read_killable mmap_sem for /proc/pid/maps
proc: use down_read_killable mmap_sem for /proc/pid/smaps_rollup
proc: use down_read_killable mmap_sem for /proc/pid/pagemap
proc: use down_read_killable mmap_sem for /proc/pid/clear_refs
proc: use down_read_killable mmap_sem for /proc/pid/map_files
mm: use down_read_killable for locking mmap_sem in access_remote_vm
mm: smaps: split PSS into components
mm: vmalloc: show number of vmalloc pages in /proc/meminfo
mm:ras:
mm/memory-failure.c: clarify error message
mm:oom-kill:
mm: memcontrol: use CSS_TASK_ITER_PROCS at mem_cgroup_scan_tasks()
mm, oom: refactor dump_tasks for memcg OOMs
mm, oom: remove redundant task_in_mem_cgroup() check
oom: decouple mems_allowed from oom_unkillable_task
mm/oom_kill.c: remove redundant OOM score normalization in select_bad_process()"
* akpm: (147 commits)
mm/oom_kill.c: remove redundant OOM score normalization in select_bad_process()
oom: decouple mems_allowed from oom_unkillable_task
mm, oom: remove redundant task_in_mem_cgroup() check
mm, oom: refactor dump_tasks for memcg OOMs
mm: memcontrol: use CSS_TASK_ITER_PROCS at mem_cgroup_scan_tasks()
mm/memory-failure.c: clarify error message
mm: vmalloc: show number of vmalloc pages in /proc/meminfo
mm: smaps: split PSS into components
mm: use down_read_killable for locking mmap_sem in access_remote_vm
proc: use down_read_killable mmap_sem for /proc/pid/map_files
proc: use down_read_killable mmap_sem for /proc/pid/clear_refs
proc: use down_read_killable mmap_sem for /proc/pid/pagemap
proc: use down_read_killable mmap_sem for /proc/pid/smaps_rollup
proc: use down_read_killable mmap_sem for /proc/pid/maps
tools/vm/slabinfo: add sorting info to help menu
tools/vm/slabinfo: add option to sort by partial slabs
tools/vm/slabinfo: add partial slab listing to -X
tools/vm/slabinfo: order command line options
mm: vmscan: correct some vmscan counters for THP swapout
mm: vmscan: remove double slab pressure by inc'ing sc->nr_scanned
...
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|
During the review of commit 1ff2f0fa450e ("net/mlx5e: Return in default
case statement in tx_post_resync_params"), Leon and Nick pointed out
that the switch statements can be converted to single if statements
that return early so that the code is easier to follow.
Suggested-by: Leon Romanovsky <leon@kernel.org>
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Since commit bbbe48029720 ("mm, oom: remove 'prefer children over
parent' heuristic") removed the
"%s: Kill process %d (%s) score %u or sacrifice child\n"
line, oc->chosen_points is no longer used after select_bad_process().
Link: http://lkml.kernel.org/r/1560853435-15575-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Roman Gushchin <guro@fb.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Commit ef08e3b4981a ("[PATCH] cpusets: confine oom_killer to
mem_exclusive cpuset") introduces a heuristic where a potential
oom-killer victim is skipped if the intersection of the potential victim
and the current (the process triggered the oom) is empty based on the
reason that killing such victim most probably will not help the current
allocating process.
However the commit 7887a3da753e ("[PATCH] oom: cpuset hint") changed the
heuristic to just decrease the oom_badness scores of such potential
victim based on the reason that the cpuset of such processes might have
changed and previously they may have allocated memory on mems where the
current allocating process can allocate from.
Unintentionally 7887a3da753e ("[PATCH] oom: cpuset hint") introduced a
side effect as the oom_badness is also exposed to the user space through
/proc/[pid]/oom_score, so, readers with different cpusets can read
different oom_score of the same process.
Later, commit 6cf86ac6f36b ("oom: filter tasks not sharing the same
cpuset") fixed the side effect introduced by 7887a3da753e by moving the
cpuset intersection back to only oom-killer context and out of
oom_badness. However the combination of ab290adbaf8f ("oom: make
oom_unkillable_task() helper function") and 26ebc984913b ("oom:
/proc/<pid>/oom_score treat kernel thread honestly") unintentionally
brought back the cpuset intersection check into the oom_badness
calculation function.
Other than doing cpuset/mempolicy intersection from oom_badness, the memcg
oom context is also doing cpuset/mempolicy intersection which is quite
wrong and is caught by syzcaller with the following report:
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 28426 Comm: syz-executor.5 Not tainted 5.2.0-rc3-next-20190607
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:__read_once_size include/linux/compiler.h:194 [inline]
RIP: 0010:has_intersects_mems_allowed mm/oom_kill.c:84 [inline]
RIP: 0010:oom_unkillable_task mm/oom_kill.c:168 [inline]
RIP: 0010:oom_unkillable_task+0x180/0x400 mm/oom_kill.c:155
Code: c1 ea 03 80 3c 02 00 0f 85 80 02 00 00 4c 8b a3 10 07 00 00 48 b8 00
00 00 00 00 fc ff df 4d 8d 74 24 10 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f
85 67 02 00 00 49 8b 44 24 10 4c 8d a0 68 fa ff ff
RSP: 0018:ffff888000127490 EFLAGS: 00010a03
RAX: dffffc0000000000 RBX: ffff8880a4cd5438 RCX: ffffffff818dae9c
RDX: 100000000c3cc602 RSI: ffffffff818dac8d RDI: 0000000000000001
RBP: ffff8880001274d0 R08: ffff888000086180 R09: ffffed1015d26be0
R10: ffffed1015d26bdf R11: ffff8880ae935efb R12: 8000000061e63007
R13: 0000000000000000 R14: 8000000061e63017 R15: 1ffff11000024ea6
FS: 00005555561f5940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000607304 CR3: 000000009237e000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
oom_evaluate_task+0x49/0x520 mm/oom_kill.c:321
mem_cgroup_scan_tasks+0xcc/0x180 mm/memcontrol.c:1169
select_bad_process mm/oom_kill.c:374 [inline]
out_of_memory mm/oom_kill.c:1088 [inline]
out_of_memory+0x6b2/0x1280 mm/oom_kill.c:1035
mem_cgroup_out_of_memory+0x1ca/0x230 mm/memcontrol.c:1573
mem_cgroup_oom mm/memcontrol.c:1905 [inline]
try_charge+0xfbe/0x1480 mm/memcontrol.c:2468
mem_cgroup_try_charge+0x24d/0x5e0 mm/memcontrol.c:6073
mem_cgroup_try_charge_delay+0x1f/0xa0 mm/memcontrol.c:6088
do_huge_pmd_wp_page_fallback+0x24f/0x1680 mm/huge_memory.c:1201
do_huge_pmd_wp_page+0x7fc/0x2160 mm/huge_memory.c:1359
wp_huge_pmd mm/memory.c:3793 [inline]
__handle_mm_fault+0x164c/0x3eb0 mm/memory.c:4006
handle_mm_fault+0x3b7/0xa90 mm/memory.c:4053
do_user_addr_fault arch/x86/mm/fault.c:1455 [inline]
__do_page_fault+0x5ef/0xda0 arch/x86/mm/fault.c:1521
do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1552
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1156
RIP: 0033:0x400590
Code: 06 e9 49 01 00 00 48 8b 44 24 10 48 0b 44 24 28 75 1f 48 8b 14 24 48
8b 7c 24 20 be 04 00 00 00 e8 f5 56 00 00 48 8b 74 24 08 <89> 06 e9 1e 01
00 00 48 8b 44 24 08 48 8b 14 24 be 04 00 00 00 8b
RSP: 002b:00007fff7bc49780 EFLAGS: 00010206
RAX: 0000000000000001 RBX: 0000000000760000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 000000002000cffc RDI: 0000000000000001
RBP: fffffffffffffffe R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000760008
R13: 00000000004c55f2 R14: 0000000000000000 R15: 00007fff7bc499b0
Modules linked in:
---[ end trace a65689219582ffff ]---
RIP: 0010:__read_once_size include/linux/compiler.h:194 [inline]
RIP: 0010:has_intersects_mems_allowed mm/oom_kill.c:84 [inline]
RIP: 0010:oom_unkillable_task mm/oom_kill.c:168 [inline]
RIP: 0010:oom_unkillable_task+0x180/0x400 mm/oom_kill.c:155
Code: c1 ea 03 80 3c 02 00 0f 85 80 02 00 00 4c 8b a3 10 07 00 00 48 b8 00
00 00 00 00 fc ff df 4d 8d 74 24 10 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f
85 67 02 00 00 49 8b 44 24 10 4c 8d a0 68 fa ff ff
RSP: 0018:ffff888000127490 EFLAGS: 00010a03
RAX: dffffc0000000000 RBX: ffff8880a4cd5438 RCX: ffffffff818dae9c
RDX: 100000000c3cc602 RSI: ffffffff818dac8d RDI: 0000000000000001
RBP: ffff8880001274d0 R08: ffff888000086180 R09: ffffed1015d26be0
R10: ffffed1015d26bdf R11: ffff8880ae935efb R12: 8000000061e63007
R13: 0000000000000000 R14: 8000000061e63017 R15: 1ffff11000024ea6
FS: 00005555561f5940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f823000 CR3: 000000009237e000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
The fix is to decouple the cpuset/mempolicy intersection check from
oom_unkillable_task() and make sure cpuset/mempolicy intersection check is
only done in the global oom context.
[shakeelb@google.com: change function name and update comment]
Link: http://lkml.kernel.org/r/20190628152421.198994-3-shakeelb@google.com
Link: http://lkml.kernel.org/r/20190624212631.87212-3-shakeelb@google.com
Signed-off-by: Shakeel Butt <shakeelb@google.com>
Reported-by: syzbot+d0fc9d3c166bc5e4a94b@syzkaller.appspotmail.com
Acked-by: Roman Gushchin <guro@fb.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Paul Jackson <pj@sgi.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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oom_unkillable_task() can be called from three different contexts i.e.
global OOM, memcg OOM and oom_score procfs interface. At the moment
oom_unkillable_task() does a task_in_mem_cgroup() check on the given
process. Since there is no reason to perform task_in_mem_cgroup()
check for global OOM and oom_score procfs interface, those contexts
provide NULL memcg and skips the task_in_mem_cgroup() check. However
for memcg OOM context, the oom_unkillable_task() is always called from
mem_cgroup_scan_tasks() and thus task_in_mem_cgroup() check becomes
redundant and effectively dead code. So, just remove the
task_in_mem_cgroup() check altogether.
Link: http://lkml.kernel.org/r/20190624212631.87212-2-shakeelb@google.com
Signed-off-by: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Roman Gushchin <guro@fb.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Paul Jackson <pj@sgi.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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dump_tasks() traverses all the existing processes even for the memcg OOM
context which is not only unnecessary but also wasteful. This imposes a
long RCU critical section even from a contained context which can be quite
disruptive.
Change dump_tasks() to be aligned with select_bad_process and use
mem_cgroup_scan_tasks to selectively traverse only processes of the target
memcg hierarchy during memcg OOM.
Link: http://lkml.kernel.org/r/20190617231207.160865-1-shakeelb@google.com
Signed-off-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Roman Gushchin <guro@fb.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: David Rientjes <rientjes@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Paul Jackson <pj@sgi.com>
Cc: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
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Since commit c03cd7738a83 ("cgroup: Include dying leaders with live
threads in PROCS iterations") corrected how CSS_TASK_ITER_PROCS works,
mem_cgroup_scan_tasks() can use CSS_TASK_ITER_PROCS in order to check
only one thread from each thread group.
[penguin-kernel@I-love.SAKURA.ne.jp: remove thread group leader check in oom_evaluate_task()]
Link: http://lkml.kernel.org/r/1560853257-14934-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp
Link: http://lkml.kernel.org/r/c763afc8-f0ae-756a-56a7-395f625b95fc@i-love.sakura.ne.jp
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
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Some user who install SIGBUS handler that does longjmp out therefore
keeping the process alive is confused by the error message
"[188988.765862] Memory failure: 0x1840200: Killing cellsrv:33395 due to hardware memory corruption"
Slightly modify the error message to improve clarity.
Link: http://lkml.kernel.org/r/1558403523-22079-1-git-send-email-jane.chu@oracle.com
Signed-off-by: Jane Chu <jane.chu@oracle.com>
Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Pankaj Gupta <pagupta@redhat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Vmalloc() is getting more and more used these days (kernel stacks, bpf and
percpu allocator are new top users), and the total % of memory consumed by
vmalloc() can be pretty significant and changes dynamically.
/proc/meminfo is the best place to display this information: its top goal
is to show top consumers of the memory.
Since the VmallocUsed field in /proc/meminfo is not in use for quite a
long time (it has been defined to 0 by a5ad88ce8c7f ("mm: get rid of
'vmalloc_info' from /proc/meminfo")), let's reuse it for showing the
actual physical memory consumption of vmalloc().
Link: http://lkml.kernel.org/r/20190417194002.12369-3-guro@fb.com
Signed-off-by: Roman Gushchin <guro@fb.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Report separate components (anon, file, and shmem) for PSS in
smaps_rollup.
This helps understand and tune the memory manager behavior in consumer
devices, particularly mobile devices. Many of them (e.g. chromebooks and
Android-based devices) use zram for anon memory, and perform disk reads
for discarded file pages. The difference in latency is large (e.g.
reading a single page from SSD is 30 times slower than decompressing a
zram page on one popular device), thus it is useful to know how much of
the PSS is anon vs. file.
All the information is already present in /proc/pid/smaps, but much more
expensive to obtain because of the large size of that procfs entry.
This patch also removes a small code duplication in smaps_account, which
would have gotten worse otherwise.
Also updated Documentation/filesystems/proc.txt (the smaps section was a
bit stale, and I added a smaps_rollup section) and
Documentation/ABI/testing/procfs-smaps_rollup.
[semenzato@chromium.org: v5]
Link: http://lkml.kernel.org/r/20190626234333.44608-1-semenzato@chromium.org
Link: http://lkml.kernel.org/r/20190626180429.174569-1-semenzato@chromium.org
Signed-off-by: Luigi Semenzato <semenzato@chromium.org>
Acked-by: Yu Zhao <yuzhao@chromium.org>
Cc: Sonny Rao <sonnyrao@chromium.org>
Cc: Yu Zhao <yuzhao@chromium.org>
Cc: Brian Geffon <bgeffon@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
This function is used by ptrace and proc files like /proc/pid/cmdline and
/proc/pid/environ.
Access_remote_vm never returns error codes, all errors are ignored and
only size of successfully read data is returned. So, if current task was
killed we'll simply return 0 (bytes read).
Mmap_sem could be locked for a long time or forever if something goes
wrong. Using a killable lock permits cleanup of stuck tasks and
simplifies investigation.
Link: http://lkml.kernel.org/r/156007494202.3335.16782303099589302087.stgit@buzz
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Reviewed-by: Michal Koutný <mkoutny@suse.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Kirill Tkhai <ktkhai@virtuozzo.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Roman Gushchin <guro@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
