The two conditions are mutually exclusive and gcc compiler will optimise
this into if-else-like pattern. Given that the majority of free_slowpath
is free_frozen, let's provide some hint to the compilers.
Tests (perf bench sched messaging -g 20 -l 400000, executed 10x
after reboot) are done and the summarized result:
un-patched patched
max. 192.316 189.851
min. 187.267 186.252
avg. 189.154 188.086
stdev. 1.37 0.99
Signed-off-by: Abel Wu <wuyun.wu@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Hewenliang <hewenliang4@huawei.com>
Cc: Hu Shiyuan <hushiyuan@huawei.com>
Link: http://lkml.kernel.org/r/20200813101812.1617-1-wuyun.wu@huawei.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The removed code was unnecessary and changed nothing in the flow, since in
case of returning NULL by 'kmem_cache_alloc_node' returning 'freelist'
from the function in question is the same as returning NULL.
Signed-off-by: Mateusz Nosek <mateusznosek0@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Link: https://lkml.kernel.org/r/20200915230329.13002-1-mateusznosek0@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We found the following warning when build kernel with W=1:
fs/fs_parser.c:192:5: warning: no previous prototype for `fs_param_bad_value' [-Wmissing-prototypes]
int fs_param_bad_value(struct p_log *log, struct fs_parameter *param)
^
CC drivers/usb/gadget/udc/snps_udc_core.o
And no header file define a prototype for this function, so we should mark
it as static.
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: https://lkml.kernel.org/r/1601293463-25763-1-git-send-email-luojiaxing@huawei.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix kernel-doc warnings in fs/xattr.c:
../fs/xattr.c:251: warning: Function parameter or member 'dentry' not described in '__vfs_setxattr_locked'
../fs/xattr.c:251: warning: Function parameter or member 'name' not described in '__vfs_setxattr_locked'
../fs/xattr.c:251: warning: Function parameter or member 'value' not described in '__vfs_setxattr_locked'
../fs/xattr.c:251: warning: Function parameter or member 'size' not described in '__vfs_setxattr_locked'
../fs/xattr.c:251: warning: Function parameter or member 'flags' not described in '__vfs_setxattr_locked'
../fs/xattr.c:251: warning: Function parameter or member 'delegated_inode' not described in '__vfs_setxattr_locked'
../fs/xattr.c:458: warning: Function parameter or member 'dentry' not described in '__vfs_removexattr_locked'
../fs/xattr.c:458: warning: Function parameter or member 'name' not described in '__vfs_removexattr_locked'
../fs/xattr.c:458: warning: Function parameter or member 'delegated_inode' not described in '__vfs_removexattr_locked'
Fixes: 08b5d5014a ("xattr: break delegations in {set,remove}xattr")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Frank van der Linden <fllinden@amazon.com>
Cc: Chuck Lever <chuck.lever@oracle.com>
Link: http://lkml.kernel.org/r/7a3dd5a2-5787-adf3-d525-c203f9910ec4@infradead.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When we discard unused blocks on a mounted ocfs2 filesystem, fstrim
handles each block goup with locking/unlocking global bitmap meta-file
repeatedly. we should let fstrim thread take a break(if need) between
unlock and lock, this will avoid the potential soft lockup problem,
and also gives the upper applications more IO opportunities, these
applications are not blocked for too long at writing files.
Signed-off-by: Gang He <ghe@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Jun Piao <piaojun@huawei.com>
Link: https://lkml.kernel.org/r/20200927015815.14904-1-ghe@suse.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Drop duplicated words {the, and} in comments.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Link: https://lkml.kernel.org/r/20200811021845.25134-1-rdunlap@infradead.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add "abitrary||arbitrary".
Signed-off-by: Naoki Hayama <naoki.hayama@lineo.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Joe Perches <joe@perches.com>
Link: https://lkml.kernel.org/r/6bf6520d-787d-5749-09b5-ff92185f501f@lineo.co.jp
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
During an investigation to fix up the execute bits of scripts in the
kernel repository, Andrew Morton and Kees Cook pointed out that the
execute bit should not matter, and that build scripts cannot rely on that.
Kees could not point to any documentation, though.
Masahiro Yamada explained the convention of setting execute bits to make
it easier for manual script invocation.
Provide some basic documentation how the build shall invoke scripts, such
that the execute bits do not matter, and acknowledge that execute bits are
useful nonetheless.
This serves as reference for further clean-up patches in the future.
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ujjwal Kumar <ujjwalkumar0501@gmail.com>
Cc: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/lkml/20200830174409.c24c3f67addcce0cea9a9d4c@linux-foundation.org/
Link: https://lore.kernel.org/lkml/202008271102.FEB906C88@keescook/
Link: https://lore.kernel.org/linux-kbuild/CAK7LNAQdrvMkDA6ApDJCGr+5db8SiPo=G+p8EiOvnnGvEN80gA@mail.gmail.com/
Link: https://lkml.kernel.org/r/20201001075723.24246-1-lukas.bulwahn@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When enabling CONFIG_TRIM_UNUSED_KSYMS, the linker will warn about the
orphan sections:
(".discard.ksym") is being placed in '".discard.ksym"'
repeatedly when linking vmlinux. This is because the stringification
operator, `#`, in the preprocessor escapes strings. GCC and Clang differ
in how they treat section names that contain \".
The portable solution is to not use a string literal with the preprocessor
stringification operator.
Fixes: commit bbda5ec671 ("kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS")
Reported-by: kbuild test robot <lkp@intel.com>
Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Matthias Maennich <maennich@google.com>
Cc: Jessica Yu <jeyu@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Will Deacon <will@kernel.org>
Link: https://bugs.llvm.org/show_bug.cgi?id=42950
Link: https://github.com/ClangBuiltLinux/linux/issues/1166
Link: https://lkml.kernel.org/r/20200929190701.398762-1-ndesaulniers@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The stringification operator, `#`, in the preprocessor escapes strings.
For example, `# "foo"` becomes `"\"foo\""`. GCC and Clang differ in how
they treat section names that contain \".
The portable solution is to not use a string literal with the preprocessor
stringification operator.
In this case, since __section unconditionally uses the stringification
operator, we actually want the more verbose
__attribute__((__section__())).
Fixes: commit e04462fb82 ("Compiler Attributes: remove uses of __attribute__ from compiler.h")
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Cc: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://bugs.llvm.org/show_bug.cgi?id=42950
Link: https://lkml.kernel.org/r/20200929194318.548707-1-ndesaulniers@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
As Kees suggests, doing so provides developers with two useful pieces of
information:
- The kernel build was attempting to use GCC.
(Maybe they accidentally poked the wrong configs in a CI.)
- They need 4.9 or better.
("Upgrade to what version?" doesn't need to be dug out of documentation,
headers, etc.)
Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Fangrui Song <maskray@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/r/20200902225911.209899-8-ndesaulniers@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Since the kernel now requires at least Clang 10.0.1, remove any mention of
old Clang versions and simplify the documentation.
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Cc: Fangrui Song <maskray@google.com>
Cc: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/r/20200902225911.209899-7-ndesaulniers@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "set clang minimum version to 10.0.1", v3.
Adds a compile time #error to compiler-clang.h setting the effective
minimum supported version to clang 10.0.1. A separate patch has already
been picked up into the Documentation/ tree also confirming the version.
Next are a series of reverts. One for 32b arm is a partial revert.
Then Marco suggested fixes to KASAN docs.
Finally, improve the warning for GCC too as per Kees.
This patch (of 7):
During Plumbers 2020, we voted to just support the latest release of Clang
for now. Add a compile time check for this.
We plan to remove workarounds for older versions now, which will break in
subtle and not so subtle ways.
Suggested-by: Sedat Dilek <sedat.dilek@gmail.com>
Suggested-by: Nathan Chancellor <natechancellor@gmail.com>
Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Reviewed-by: Sedat Dilek <sedat.dilek@gmail.com>
Acked-by: Marco Elver <elver@google.com>
Acked-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Fangrui Song <maskray@google.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Link: https://lkml.kernel.org/r/20200902225911.209899-1-ndesaulniers@google.com
Link: https://lkml.kernel.org/r/20200902225911.209899-2-ndesaulniers@google.com
Link: https://github.com/ClangBuiltLinux/linux/issues/9
Link: https://github.com/ClangBuiltLinux/linux/issues/941
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
the .fixup section, by Uros Bizjak.
* Replace __force_order dummy variable with a memory clobber to fix LLVM
requiring a definition for former and to prevent memory accesses from
still being cached/reordered, by Arvind Sankar.
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Merge tag 'x86_asm_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 asm updates from Borislav Petkov:
"Two asm wrapper fixes:
- Use XORL instead of XORQ to avoid a REX prefix and save some bytes
in the .fixup section, by Uros Bizjak.
- Replace __force_order dummy variable with a memory clobber to fix
LLVM requiring a definition for former and to prevent memory
accesses from still being cached/reordered, by Arvind Sankar"
* tag 'x86_asm_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/asm: Replace __force_order with a memory clobber
x86/uaccess: Use XORL %0,%0 in __get_user_asm()
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Merge tag 'drivers-5.10-2020-10-12' of git://git.kernel.dk/linux-block
Pull block driver updates from Jens Axboe:
"Here are the driver updates for 5.10.
A few SCSI updates in here too, in coordination with Martin as they
depend on core block changes for the shared tag bitmap.
This contains:
- NVMe pull requests via Christoph:
- fix keep alive timer modification (Amit Engel)
- order the PCI ID list more sensibly (Andy Shevchenko)
- cleanup the open by controller helper (Chaitanya Kulkarni)
- use an xarray for the CSE log lookup (Chaitanya Kulkarni)
- support ZNS in nvmet passthrough mode (Chaitanya Kulkarni)
- fix nvme_ns_report_zones (Christoph Hellwig)
- add a sanity check to nvmet-fc (James Smart)
- fix interrupt allocation when too many polled queues are
specified (Jeffle Xu)
- small nvmet-tcp optimization (Mark Wunderlich)
- fix a controller refcount leak on init failure (Chaitanya
Kulkarni)
- misc cleanups (Chaitanya Kulkarni)
- major refactoring of the scanning code (Christoph Hellwig)
- MD updates via Song:
- Bug fixes in bitmap code, from Zhao Heming
- Fix a work queue check, from Guoqing Jiang
- Fix raid5 oops with reshape, from Song Liu
- Clean up unused code, from Jason Yan
- Discard improvements, from Xiao Ni
- raid5/6 page offset support, from Yufen Yu
- Shared tag bitmap for SCSI/hisi_sas/null_blk (John, Kashyap,
Hannes)
- null_blk open/active zone limit support (Niklas)
- Set of bcache updates (Coly, Dongsheng, Qinglang)"
* tag 'drivers-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (78 commits)
md/raid5: fix oops during stripe resizing
md/bitmap: fix memory leak of temporary bitmap
md: fix the checking of wrong work queue
md/bitmap: md_bitmap_get_counter returns wrong blocks
md/bitmap: md_bitmap_read_sb uses wrong bitmap blocks
md/raid0: remove unused function is_io_in_chunk_boundary()
nvme-core: remove extra condition for vwc
nvme-core: remove extra variable
nvme: remove nvme_identify_ns_list
nvme: refactor nvme_validate_ns
nvme: move nvme_validate_ns
nvme: query namespace identifiers before adding the namespace
nvme: revalidate zone bitmaps in nvme_update_ns_info
nvme: remove nvme_update_formats
nvme: update the known admin effects
nvme: set the queue limits in nvme_update_ns_info
nvme: remove the 0 lba_shift check in nvme_update_ns_info
nvme: clean up the check for too large logic block sizes
nvme: freeze the queue over ->lba_shift updates
nvme: factor out a nvme_configure_metadata helper
...
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Merge tag 'libata-5.10-2020-10-12' of git://git.kernel.dk/linux-block
Pull libata updates from Jens Axboe:
"Nothing major in here, just fixes or improvements collected over the
last few months"
* tag 'libata-5.10-2020-10-12' of git://git.kernel.dk/linux-block:
ata: ahci: mvebu: Make SATA PHY optional for Armada 3720
MAINTAINERS: remove LIBATA PATA DRIVERS entry
pata_cmd64x: Use fallthrough pseudo-keyword
ahci: qoriq: enable acpi support in qoriq ahci driver
sata, highbank: simplify the return expression of ahci_highbank_suspend
ahci: Add Intel Rocket Lake PCH-H RAID PCI IDs
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Merge tag 'io_uring-5.10-2020-10-12' of git://git.kernel.dk/linux-block
Pull io_uring updates from Jens Axboe:
- Add blkcg accounting for io-wq offload (Dennis)
- A use-after-free fix for io-wq (Hillf)
- Cancelation fixes and improvements
- Use proper files_struct references for offload
- Cleanup of io_uring_get_socket() since that can now go into our own
header
- SQPOLL fixes and cleanups, and support for sharing the thread
- Improvement to how page accounting is done for registered buffers and
huge pages, accounting the real pinned state
- Series cleaning up the xarray code (Willy)
- Various cleanups, refactoring, and improvements (Pavel)
- Use raw spinlock for io-wq (Sebastian)
- Add support for ring restrictions (Stefano)
* tag 'io_uring-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (62 commits)
io_uring: keep a pointer ref_node in file_data
io_uring: refactor *files_register()'s error paths
io_uring: clean file_data access in files_register
io_uring: don't delay io_init_req() error check
io_uring: clean leftovers after splitting issue
io_uring: remove timeout.list after hrtimer cancel
io_uring: use a separate struct for timeout_remove
io_uring: improve submit_state.ios_left accounting
io_uring: simplify io_file_get()
io_uring: kill extra check in fixed io_file_get()
io_uring: clean up ->files grabbing
io_uring: don't io_prep_async_work() linked reqs
io_uring: Convert advanced XArray uses to the normal API
io_uring: Fix XArray usage in io_uring_add_task_file
io_uring: Fix use of XArray in __io_uring_files_cancel
io_uring: fix break condition for __io_uring_register() waiting
io_uring: no need to call xa_destroy() on empty xarray
io_uring: batch account ->req_issue and task struct references
io_uring: kill callback_head argument for io_req_task_work_add()
io_uring: move req preps out of io_issue_sqe()
...
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Merge tag 'block-5.10-2020-10-12' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe:
- Series of merge handling cleanups (Baolin, Christoph)
- Series of blk-throttle fixes and cleanups (Baolin)
- Series cleaning up BDI, seperating the block device from the
backing_dev_info (Christoph)
- Removal of bdget() as a generic API (Christoph)
- Removal of blkdev_get() as a generic API (Christoph)
- Cleanup of is-partition checks (Christoph)
- Series reworking disk revalidation (Christoph)
- Series cleaning up bio flags (Christoph)
- bio crypt fixes (Eric)
- IO stats inflight tweak (Gabriel)
- blk-mq tags fixes (Hannes)
- Buffer invalidation fixes (Jan)
- Allow soft limits for zone append (Johannes)
- Shared tag set improvements (John, Kashyap)
- Allow IOPRIO_CLASS_RT for CAP_SYS_NICE (Khazhismel)
- DM no-wait support (Mike, Konstantin)
- Request allocation improvements (Ming)
- Allow md/dm/bcache to use IO stat helpers (Song)
- Series improving blk-iocost (Tejun)
- Various cleanups (Geert, Damien, Danny, Julia, Tetsuo, Tian, Wang,
Xianting, Yang, Yufen, yangerkun)
* tag 'block-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (191 commits)
block: fix uapi blkzoned.h comments
blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue
blk-mq: get rid of the dead flush handle code path
block: get rid of unnecessary local variable
block: fix comment and add lockdep assert
blk-mq: use helper function to test hw stopped
block: use helper function to test queue register
block: remove redundant mq check
block: invoke blk_mq_exit_sched no matter whether have .exit_sched
percpu_ref: don't refer to ref->data if it isn't allocated
block: ratelimit handle_bad_sector() message
blk-throttle: Re-use the throtl_set_slice_end()
blk-throttle: Open code __throtl_de/enqueue_tg()
blk-throttle: Move service tree validation out of the throtl_rb_first()
blk-throttle: Move the list operation after list validation
blk-throttle: Fix IO hang for a corner case
blk-throttle: Avoid tracking latency if low limit is invalid
blk-throttle: Avoid getting the current time if tg->last_finish_time is 0
blk-throttle: Remove a meaningless parameter for throtl_downgrade_state()
block: Remove redundant 'return' statement
...
crash information. (Thomas Gleixner)
- Remove an unused variable in the UV5 code which was triggering a build
warning with clang. (Mike Travis)
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Merge tag 'x86_urgent_for_v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Fix the #DE oops message string format which confused tools parsing
crash information (Thomas Gleixner)
- Remove an unused variable in the UV5 code which was triggering a
build warning with clang (Mike Travis)
* tag 'x86_urgent_for_v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/platform/uv: Remove unused variable in UV5 NMI handler
x86/traps: Fix #DE Oops message regression
The conversion of #DE to the idtentry mechanism introduced a change in the
Ooops message which confuses tools which parse crash information in dmesg.
Remove the underscore from 'divide_error' to restore previous behaviour.
Fixes: 9d06c4027f ("x86/entry: Convert Divide Error to IDTENTRY")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/CACT4Y+bTZFkuZd7+bPArowOv-7Die+WZpfOWnEO_Wgs3U59+oA@mail.gmail.com
New driver and chip support:
- Moortec MR75203 PVT controller
- MPS Multi-phase mp2975 controller
- ADM1266
- Zen3 CPUs
- Intel MAX 10 BMC
Enhancements:
- Support for rated attributes in hwmon core
- MAX20730
- Device monitoring via debugfs
- VOUT readin adjustment vie devicetree bindings
- LM75
- Devicetree support
- Regulator support
- Improved accumulationm logic in amd_energy driver
- Added fan sensor to gsc-hwmon driver
- Support for simplified I2C probing
Various other minor fixes and improvements.
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Merge tag 'hwmon-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
"New driver and chip support:
- Moortec MR75203 PVT controller
- MPS Multi-phase mp2975 controller
- ADM1266
- Zen3 CPUs
- Intel MAX 10 BMC
Enhancements:
- Support for rated attributes in hwmon core
- MAX20730:
- Device monitoring via debugfs
- VOUT readin adjustment vie devicetree bindings
- LM75:
- Devicetree support
- Regulator support
- Improved accumulationm logic in amd_energy driver
- Added fan sensor to gsc-hwmon driver
- Support for simplified I2C probing
Various other minor fixes and improvements"
* tag 'hwmon-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (64 commits)
hwmon: (pmbus/max20730) adjust the vout reading given voltage divider
dt-bindings: hwmon: max20730: adding device tree doc for max20730
hwmon: Add hardware monitoring driver for Moortec MR75203 PVT controller
hwmon: Add DT bindings schema for PVT controller
dt-bindings: hwmon: Add the +vs supply to the lm75 bindings
dt-bindings: hwmon: Convert lm75 bindings to yaml
docs: hwmon: (ltc2945) update datasheet link
hwmon: (mlxreg-fan) Fix double "Mellanox"
hwmon: (pmbus/max20730) add device monitoring via debugfs
hwmon: (pmbus/max34440) Fix OC fault limits
hwmon: (bt1-pvt) Wait for the completion with timeout
hwmon: (bt1-pvt) Cache current update timeout
hwmon: (bt1-pvt) Test sensor power supply on probe
hwmon: (lm75) Add regulator support
hwmon: Add hwmon driver for Intel MAX 10 BMC
dt-bindings: Add MP2975 voltage regulator device
hwmon: (pmbus) Add support for MPS Multi-phase mp2975 controller
hwmon: (tmp513) fix spelling typo in comments
hwmon: (amd_energy) Update driver documentation
hwmon: (amd_energy) Improve the accumulation logic
...
Core changes:
- The big core change is the updated (v2) userspace character
device API. This corrects badly designed 64-bit alignment around
the line events. We also add the debounce request feature.
This echoes the often quotes passage from Frederick Brooks
"The mythical man-month" to always throw one away, which we
have seen before in things such as V4L2. So we put in a new
one and deprecate and obsolete the old one.
- All example tools in tools/gpio/* are migrated to the new API
to set a good example. The libgpiod userspace library has been
augmented to use this new API pretty much from day 1.
- Some misc API hardening by using strn* function calls has been
added as well.
- Use the simpler IDA interface for GPIO chip instance enumeration.
- Add device core function for counting string arrays in
device properties.
- Provide a generic library function kfree_strarray() that can
be used throughout the kernel.
Driver enhancements:
- The DesignWare dwapb-gpio driver has been enhanced and now
uses the IRQ handling in the gpiolib core.
- The mockup and aggregator drivers have seen some substantial
code clean-up and now use more of the core kernel
inftrastructure.
- Misc cleanups using dev_err_probe().
- The MXC drivers (Freescale/NXP) can now be built modularized,
which makes modularized GKI Android kernels happy.
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Merge tag 'gpio-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This time very little driver changes but lots of core changes.
We have some interesting cooperative work for ARM and Intel alike,
making the GPIO subsystem more and more suitable for industrial
systems and the like, in addition to the in-kernel users.
We touch driver core (device properties) and lib/* by adding one
simple string array free function, these are authored by Andy
Shevchenko who is a well known and recognized core helpers maintainers
so this should be fine.
We also see some Android GKI-related modularization in the MXC
drivers.
Core changes:
- The big core change is the updated (v2) userspace character device
API.
This corrects badly designed 64-bit alignment around the line
events. We also add the debounce request feature. This echoes the
often quotes passage from Frederick Brooks "The mythical man-month"
to always throw one away, which we have seen before in things such
as V4L2. So we put in a new one and deprecate and obsolete the old
one.
- All example tools in tools/gpio/* are migrated to the new API to
set a good example. The libgpiod userspace library has been
augmented to use this new API pretty much from day 1.
- Some misc API hardening by using strn* function calls has been
added as well.
- Use the simpler IDA interface for GPIO chip instance enumeration.
- Add device core function for counting string arrays in device
properties.
- Provide a generic library function kfree_strarray() that can be
used throughout the kernel.
Driver enhancements:
- The DesignWare dwapb-gpio driver has been enhanced and now uses the
IRQ handling in the gpiolib core.
- The mockup and aggregator drivers have seen some substantial code
clean-up and now use more of the core kernel inftrastructure.
- Misc cleanups using dev_err_probe().
- The MXC drivers (Freescale/NXP) can now be built modularized, which
makes modularized GKI Android kernels happy"
* tag 'gpio-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (73 commits)
gpiolib: Update header block in gpiolib-cdev.h
gpiolib: cdev: switch from kstrdup() to kstrndup()
docs: gpio: add a new document to its index.rst
gpio: pca953x: Add support for the NXP PCAL9554B/C
tools: gpio: add debounce support to gpio-event-mon
tools: gpio: add multi-line monitoring to gpio-event-mon
tools: gpio: port gpio-event-mon to v2 uAPI
tools: gpio: port gpio-hammer to v2 uAPI
tools: gpio: rename nlines to num_lines
tools: gpio: port gpio-watch to v2 uAPI
tools: gpio: port lsgpio to v2 uAPI
gpio: uapi: document uAPI v1 as deprecated
gpiolib: cdev: support setting debounce
gpiolib: cdev: support GPIO_V2_LINE_SET_VALUES_IOCTL
gpiolib: cdev: support GPIO_V2_LINE_SET_CONFIG_IOCTL
gpiolib: cdev: support edge detection for uAPI v2
gpiolib: cdev: support GPIO_V2_GET_LINEINFO_IOCTL and GPIO_V2_GET_LINEINFO_WATCH_IOCTL
gpiolib: cdev: support GPIO_V2_GET_LINE_IOCTL and GPIO_V2_LINE_GET_VALUES_IOCTL
gpiolib: add build option for CDEV v1 ABI
gpiolib: make cdev a build option
...
There's quite a lot of changes for SPI in this release but none in the
core, they're all mostly small driver updates and additions. Some of
the more notable changes include:
- A huge set of cleanups, optimizations and improvements for the
DesignWare driver from Serge Semin finishing up the work started
last release.
- Conversion of the Zynq gqspi driver to spi-mem.
- Support for Baikal T1, Broadcom BCMSTB 7445, and Renesas R8A7742.
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Merge tag 'spi-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"There's quite a lot of changes for SPI in this release but none in the
core, they're all mostly small driver updates and additions. Some of
the more notable changes include:
- A huge set of cleanups, optimizations and improvements for the
DesignWare driver from Serge Semin finishing up the work started
last release.
- Conversion of the Zynq gqspi driver to spi-mem.
- Support for Baikal T1, Broadcom BCMSTB 7445, and Renesas R8A7742"
* tag 'spi-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (137 commits)
spi: cadence: Add SPI transfer delays
spi: dw: Add Baikal-T1 SPI Controller bindings
spi: dw: Add Baikal-T1 SPI Controller glue driver
spi: dw: Add poll-based SPI transfers support
spi: dw: Introduce max mem-ops SPI bus frequency setting
spi: dw: Add memory operations support
spi: dw: Add generic DW SSI status-check method
spi: dw: Move num-of retries parameter to the header file
spi: dw: Explicitly de-assert CS on SPI transfer completion
spi: dw: De-assert chip-select on reset
spi: dw: Discard chip enabling on DMA setup error
spi: dw: Unmask IRQs after enabling the chip
spi: dw: Perform IRQ setup in a dedicated function
spi: dw: Refactor IRQ-based SPI transfer procedure
spi: dw: Refactor data IO procedure
spi: dw: Add DW SPI controller config structure
spi: dw: Update Rx sample delay in the config function
spi: dw: Simplify the SPI bus speed config procedure
spi: dw: Update SPI bus speed in a config function
spi: dw: Detach SPI device specific CR0 config method
...
This is a fairly small release for the regulator API, there's quite a
few new devices supported and some important improvements around coupled
regulators in the core but mostly just small fixes and improvements
otherwise.
- Fixes and cleanups around the handling of coupled regulators.
- A special driver for some Raspberry Pi panels with some unusually
custom stuff around them.
- Support for Qualcomm PM660/PM660L, PM8950 and PM8953, Richtek RT4801
and RTMV20, Rohm BD9576MUF and BD9573MUF.
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Merge tag 'regulator-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"This is a fairly small release for the regulator API, there's quite a
few new devices supported and some important improvements around
coupled regulators in the core but mostly just small fixes and
improvements otherwise.
Summary:
- Fixes and cleanups around the handling of coupled regulators.
- A special driver for some Raspberry Pi panels with some unusually
custom stuff around them.
- Support for Qualcomm PM660/PM660L, PM8950 and PM8953, Richtek
RT4801 and RTMV20, Rohm BD9576MUF and BD9573MUF"
* tag 'regulator-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (89 commits)
regulator: bd9576: Fix print
regulator: bd9576: fix regulator binfdings dt node names
dt-bindings: regulator: document pm8950 and pm8953 smd regulators
regulator: qcom_smd: add pm8953 regulators
regulator: Make constraint debug processing conditional on DEBUG
regulator: qcom: labibb: Constify static structs
regulator: dt-bindings: Document the PM660/PM660L PMICs entries
regulator: qcom_smd: Add PM660/PM660L regulator support
regulator: dt-bindings: Document the PM660/660L SPMI PMIC entries
regulator: qcom_spmi: Add PM660/PM660L regulators
regulator: qcom_spmi: Add support for new regulator types
regulator: core: Enlarge max OF property name length to 64 chars
regulator: tps65910: use regmap accessors
regulator: rtmv20: Add missing regcache cache only before marked as dirty
regulator: rtmv20: Update DT binding document and property name parsing
regulator: rtmv20: Add DT-binding document for Richtek RTMV20
regulator: rtmv20: Adds support for Richtek RTMV20 load switch regulator
regulator: resolve supply after creating regulator
regulator: print symbolic errors in kernel messages
regulator: print state at boot
...
Quite a busy release for regmap, mostly support for new features useful
on fairly small subsets of devices. The user visible features are:
- A new API for registering large numbers of regmap fields at once.
- Support for Intel AVMM buses connected via SPI.
- Support for 12/20 address/value layouts.
- Support for yet another scheme for acknowledging interrupts used on
some Qualcomm devices.
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Merge tag 'regmap-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"Quite a busy release for regmap, mostly support for new features
useful on fairly small subsets of devices. The user visible features
are:
- A new API for registering large numbers of regmap fields at once.
- Support for Intel AVMM buses connected via SPI.
- Support for 12/20 address/value layouts.
- Support for yet another scheme for acknowledging interrupts used on
some Qualcomm devices"
* tag 'regmap-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: irq: Add support to clear ack registers
regmap: add support to regmap_field_bulk_alloc/free apis
regmap: destroy mutex (if used) in regmap_exit()
regmap: debugfs: use semicolons rather than commas to separate statements
regmap: debugfs: Fix more error path regressions
regmap: Add support for 12/20 register formatting
regmap: Add can_sleep configuration option
regmap: soundwire: remove unused header mod_devicetable.h
regmap: Use flexible sleep
regmap: add Intel SPI Slave to AVMM Bus Bridge support
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Merge tag 'media/v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- the usbvision driver was dropped from staging
- the Zoran driver were re-added at staging. It gained lots of
improvements, and was converted to use videobuf2 API
- a new virtual driver (vidtv) was added in order to allow testing the
digital TV framework and APIs
- the media uAPI documentation gained a glossary with commonly used
terms, helping to simplify some parts of the docs
- more cleanups at the atomisp driver
- Mediatek VPU gained support for MT8183
- added support for codecs with supports doing colorspace conversion
(CSC)
- support for CSC API was added at vivid and rksip1 drivers
- added a helper core support and uAPI for better supporting H.264
codecs
- added support for Renesas R8A774E1
- use the new SPDX GFDL-1.1-no-invariants-or-later license on media
uAPI docs, instead of a license text
- Venus driver has gained VP9 codec support
- lots of other cleanups and driver improvements
* tag 'media/v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (555 commits)
media: dvb-frontends/drxk_hard.c: fix uninitialized variable warning
media: tvp7002: fix uninitialized variable warning
media: s5k5baf: drop 'data' field in struct s5k5baf_fw
media: dt-bindings: media: venus: Add an optional power domain for perf voting
media: rcar-vin: rcar-dma: Fix setting VNIS_REG for RAW8 formats
media: staging: rkisp1: uapi: Do not use BIT() macro
media: v4l2-mem2mem: Fix spurious v4l2_m2m_buf_done
media: usbtv: Fix refcounting mixup
media: zoran.rst: place it at the right place this time
media: add Zoran cardlist
media: admin-guide: update cardlists
media: siano: rename a duplicated card string
media: zoran: move documentation file to the right place
media: atomisp: fixes build breakage for ISP2400 due to a cleanup
media: zoran: fix mixed case on vars
media: zoran: get rid of an unused var
media: zoran: use upper case for card types
media: zoran: fix sparse warnings
media: zoran: fix smatch warning
media: zoran: update TODO
...
- Export SDIO revision and info strings to userspace
- Add support for specifying mmc/mmcblk index via mmc aliases in DT
MMC host:
- Enable support for async probe for all mmc host drivers
- Enable compile testing of multiple host drivers
- dw_mmc: Enable the Synopsys DesignWare driver for RISCV and CSKY
- mtk-sd: Fixup support for CQHCI
- owl-mmc: Add support for the actions,s700-mmc variant
- renesas_sdhi: Fix regression (temporary) for re-insertion of SD cards
- renesas_sdhi: Add support for the r8a774e1 variant
- renesas_sdhi/tmio: Improvements for tunings
- renesas_sdhi/tmio: Rework support for reset of controller
- sdhci-acpi: Fix HS400 tuning for devices with invalid presets on AMDI0040
- sdhci_am654: Improve support for tunings
- sdhci_am654: Add support for input tap delays
- sdhci_am654: Add workaround for card detect debounce timer
- sdhci-am654: Add support for the TI's J7200 variants
- sdhci-esdhc-imx: Fix support for manual tuning
- sdhci-iproc: Enable support for eMMC DDR 3.3V for bcm2711
- sdhci-msm: Fix stability issues with HS400 for sc7180
- sdhci-of-sparx5: Add Sparx5 SoC eMMC driver
- sdhci-of-esdhc: Fixup reference clock source selection
- sdhci-pci: Add LTR support for some Intel BYT controllers
- sdhci-pci-gli: Add CQHCI Support for GL9763E
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Merge tag 'mmc-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson:
"MMC core:
- Export SDIO revision and info strings to userspace
- Add support for specifying mmc/mmcblk index via mmc aliases in DT
MMC host:
- Enable support for async probe for all mmc host drivers
- Enable compile testing of multiple host drivers
- dw_mmc: Enable the Synopsys DesignWare driver for RISCV and CSKY
- mtk-sd: Fixup support for CQHCI
- owl-mmc: Add support for the actions,s700-mmc variant
- renesas_sdhi: Fix regression (temporary) for re-insertion of SD cards
- renesas_sdhi: Add support for the r8a774e1 variant
- renesas_sdhi/tmio: Improvements for tunings
- renesas_sdhi/tmio: Rework support for reset of controller
- sdhci-acpi: Fix HS400 tuning for devices with invalid presets on AMDI0040
- sdhci_am654: Improve support for tunings
- sdhci_am654: Add support for input tap delays
- sdhci_am654: Add workaround for card detect debounce timer
- sdhci-am654: Add support for the TI's J7200 variants
- sdhci-esdhc-imx: Fix support for manual tuning
- sdhci-iproc: Enable support for eMMC DDR 3.3V for bcm2711
- sdhci-msm: Fix stability issues with HS400 for sc7180
- sdhci-of-sparx5: Add Sparx5 SoC eMMC driver
- sdhci-of-esdhc: Fixup reference clock source selection
- sdhci-pci: Add LTR support for some Intel BYT controllers
- sdhci-pci-gli: Add CQHCI Support for GL9763E"
* tag 'mmc-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (91 commits)
mmc: sdhci_am654: Fix module autoload
mmc: renesas_sdhi: workaround a regression when reinserting SD cards
mmc: sdhci-pci-gli: Add CQHCI Support for GL9763E
mmc: sdhci-acpi: AMDI0040: Set SDHCI_QUIRK2_PRESET_VALUE_BROKEN
mmc: sdhci_am654: Enable tuning for SDR50
mmc: sdhci_am654: Add support for software tuning
mmc: sdhci_am654: Add support for input tap delay
mmc: sdhci_am654: Fix hard coded otap delay array size
dt-bindings: mmc: sdhci-am654: Add documentation for input tap delay
dt-bindings: mmc: sdhci-am654: Convert sdhci-am654 controller documentation to json schema
mmc: sdhci-of-esdhc: fix reference clock source selection
mmc: host: fix depends for MMC_MESON_GX w/ COMPILE_TEST
mmc: sdhci-s3c: hide forward declaration of of_device_id behind CONFIG_OF
mmc: sdhci: fix indentation mistakes
mmc: moxart: remove unneeded check for drvdata
mmc: renesas_sdhi: drop local flag for tuning
mmc: rtsx_usb_sdmmc: simplify the return expression of sd_change_phase()
mmc: core: document mmc_hw_reset()
mmc: mediatek: Drop pointer to mmc_host from msdc_host
dt-bindings: mmc: owl: add compatible string actions,s700-mmc
...
- fix an issue which can cause overlay permission problem
due to duplicated permission check for "trusted." xattrs;
- add REQ_RAHEAD flag to readahead requests for blktrace;
- several random cleanup.
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Merge tag 'erofs-for-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs updates from Gao Xiang:
"This cycle addresses a reported permission issue with overlay due to a
duplicated permission check for "trusted." xattrs. Also, a REQ_RAHEAD
flag is added now to all readahead requests in order to trace
readahead I/Os. The others are random cleanups.
All commits have been tested and have been in linux-next as well.
Summary:
- fix an issue which can cause overlay permission problem due to
duplicated permission check for "trusted." xattrs;
- add REQ_RAHEAD flag to readahead requests for blktrace;
- several random cleanup"
* tag 'erofs-for-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
erofs: remove unnecessary enum entries
erofs: add REQ_RAHEAD flag to readahead requests
erofs: fold in should_decompress_synchronously()
erofs: avoid unnecessary variable `err'
erofs: remove unneeded parameter
erofs: avoid duplicated permission check for "trusted." xattrs
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Merge tag 'for-5.10-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"Mostly core updates with a few user visible bits and fixes.
Hilights:
- fsync performance improvements
- less contention of log mutex (throughput +4%, latency -14%,
dbench with 32 clients)
- skip unnecessary commits for link and rename (throughput +6%,
latency -30%, rename latency -75%, dbench with 16 clients)
- make fast fsync wait only for writeback (throughput +10..40%,
runtime -1..-20%, dbench with 1 to 64 clients on various
file/block sizes)
- direct io is now implemented using the iomap infrastructure, that's
the main part, we still have a workaround that requires an iomap
API update, coming in 5.10
- new sysfs exports:
- information about the exclusive filesystem operation status
(balance, device add/remove/replace, ...)
- supported send stream version
Core:
- use ticket space reservations for data, fair policy using the same
infrastructure as metadata
- preparatory work to switch locking from our custom tree locks to
standard rwsem, now the locking context is propagated to all
callers, actual switch is expected to happen in the next dev cycle
- seed device structures are now using list API
- extent tracepoints print proper tree id
- unified range checks for extent buffer helpers
- send: avoid using temporary buffer for copying data
- remove unnecessary RCU protection from space infos
- remove unused readpage callback for metadata, enabling several
cleanups
- replace indirect function calls for end io hooks and remove
extent_io_ops completely
Fixes:
- more lockdep warning fixes
- fix qgroup reservation for delayed inode and an occasional
reservation leak for preallocated files
- fix device replace of a seed device
- fix metadata reservation for fallocate that leads to transaction
aborts
- reschedule if necessary when logging directory items or when
cloning lots of extents
- tree-checker: fix false alert caused by legacy btrfs root item
- send: fix rename/link conflicts for orphanized inodes
- properly initialize device stats for seed devices
- skip devices without magic signature when mounting
Other:
- error handling improvements, BUG_ONs replaced by proper handling,
fuzz fixes
- various function parameter cleanups
- various W=1 cleanups
- error/info messages improved
Mishaps:
- commit 62cf539120 ("btrfs: move btrfs_rm_dev_replace_free_srcdev
outside of all locks") is a rebase leftover after the patch got
merged to 5.9-rc8 as a466c85edc ("btrfs: move
btrfs_rm_dev_replace_free_srcdev outside of all locks"), the
remaining part is trivial and the patch is in the middle of the
series so I'm keeping it there instead of rebasing"
* tag 'for-5.10-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (161 commits)
btrfs: rename BTRFS_INODE_ORDERED_DATA_CLOSE flag
btrfs: annotate device name rcu_string with __rcu
btrfs: skip devices without magic signature when mounting
btrfs: cleanup cow block on error
btrfs: remove BTRFS_INODE_READDIO_NEED_LOCK
fs: remove no longer used dio_end_io()
btrfs: return error if we're unable to read device stats
btrfs: init device stats for seed devices
btrfs: remove struct extent_io_ops
btrfs: call submit_bio_hook directly for metadata pages
btrfs: stop calling submit_bio_hook for data inodes
btrfs: don't opencode is_data_inode in end_bio_extent_readpage
btrfs: call submit_bio_hook directly in submit_one_bio
btrfs: remove extent_io_ops::readpage_end_io_hook
btrfs: replace readpage_end_io_hook with direct calls
btrfs: send, recompute reference path after orphanization of a directory
btrfs: send, orphanize first all conflicting inodes when processing references
btrfs: tree-checker: fix false alert caused by legacy btrfs root item
btrfs: use unaligned helpers for stack and header set/get helpers
btrfs: free-space-cache: use unaligned helpers to access data
...
This set continues the ongoing rework of the low level
communication layer in the dlm. The focus here is on
improvements to connection handling, and reworking the
receiving of messages.
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Merge tag 'dlm-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
Pull dlm updates from David Teigland:
"This set continues the ongoing rework of the low level communication
layer in the dlm.
The focus here is on improvements to connection handling, and
reworking the receiving of messages"
* tag 'dlm-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
fs: dlm: fix race in nodeid2con
fs: dlm: rework receive handling
fs: dlm: disallow buffer size below default
fs: dlm: handle range check as callback
fs: dlm: fix mark per nodeid setting
fs: dlm: remove lock dependency warning
fs: dlm: use free_con to free connection
fs: dlm: handle possible othercon writequeues
fs: dlm: move free writequeue into con free
fs: dlm: fix configfs memory leak
fs: dlm: fix dlm_local_addr memory leak
fs: dlm: make connection hash lockless
fs: dlm: synchronize dlm before shutdown
This release, we rework the implementation of creating new encrypted
files in order to fix some deadlocks and prepare for adding fscrypt
support to CephFS, which Jeff Layton is working on.
We also export a symbol in preparation for the above-mentioned CephFS
support and also for ext4/f2fs encrypt+casefold support.
Finally, there are a few other small cleanups.
As usual, all these patches have been in linux-next with no reported
issues, and I've tested them with xfstests.
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Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt
Pull fscrypt updates from Eric Biggers:
"This release, we rework the implementation of creating new encrypted
files in order to fix some deadlocks and prepare for adding fscrypt
support to CephFS, which Jeff Layton is working on.
We also export a symbol in preparation for the above-mentioned CephFS
support and also for ext4/f2fs encrypt+casefold support.
Finally, there are a few other small cleanups.
As usual, all these patches have been in linux-next with no reported
issues, and I've tested them with xfstests"
* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
fscrypt: export fscrypt_d_revalidate()
fscrypt: rename DCACHE_ENCRYPTED_NAME to DCACHE_NOKEY_NAME
fscrypt: don't call no-key names "ciphertext names"
fscrypt: use sha256() instead of open coding
fscrypt: make fscrypt_set_test_dummy_encryption() take a 'const char *'
fscrypt: handle test_dummy_encryption in more logical way
fscrypt: move fscrypt_prepare_symlink() out-of-line
fscrypt: make "#define fscrypt_policy" user-only
fscrypt: stop pretending that key setup is nofs-safe
fscrypt: require that fscrypt_encrypt_symlink() already has key
fscrypt: remove fscrypt_inherit_context()
fscrypt: adjust logging for in-creation inodes
ubifs: use fscrypt_prepare_new_inode() and fscrypt_set_context()
f2fs: use fscrypt_prepare_new_inode() and fscrypt_set_context()
ext4: use fscrypt_prepare_new_inode() and fscrypt_set_context()
ext4: factor out ext4_xattr_credits_for_new_inode()
fscrypt: add fscrypt_prepare_new_inode() and fscrypt_set_context()
fscrypt: restrict IV_INO_LBLK_32 to ino_bits <= 32
fscrypt: drop unused inode argument from fscrypt_fname_alloc_buffer
Pull crypto updates from Herbert Xu:
"API:
- Allow DRBG testing through user-space af_alg
- Add tcrypt speed testing support for keyed hashes
- Add type-safe init/exit hooks for ahash
Algorithms:
- Mark arc4 as obsolete and pending for future removal
- Mark anubis, khazad, sead and tea as obsolete
- Improve boot-time xor benchmark
- Add OSCCA SM2 asymmetric cipher algorithm and use it for integrity
Drivers:
- Fixes and enhancement for XTS in caam
- Add support for XIP8001B hwrng in xiphera-trng
- Add RNG and hash support in sun8i-ce/sun8i-ss
- Allow imx-rngc to be used by kernel entropy pool
- Use crypto engine in omap-sham
- Add support for Ingenic X1830 with ingenic"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (205 commits)
X.509: Fix modular build of public_key_sm2
crypto: xor - Remove unused variable count in do_xor_speed
X.509: fix error return value on the failed path
crypto: bcm - Verify GCM/CCM key length in setkey
crypto: qat - drop input parameter from adf_enable_aer()
crypto: qat - fix function parameters descriptions
crypto: atmel-tdes - use semicolons rather than commas to separate statements
crypto: drivers - use semicolons rather than commas to separate statements
hwrng: mxc-rnga - use semicolons rather than commas to separate statements
hwrng: iproc-rng200 - use semicolons rather than commas to separate statements
hwrng: stm32 - use semicolons rather than commas to separate statements
crypto: xor - use ktime for template benchmarking
crypto: xor - defer load time benchmark to a later time
crypto: hisilicon/zip - fix the uninitalized 'curr_qm_qp_num'
crypto: hisilicon/zip - fix the return value when device is busy
crypto: hisilicon/zip - fix zero length input in GZIP decompress
crypto: hisilicon/zip - fix the uncleared debug registers
lib/mpi: Fix unused variable warnings
crypto: x86/poly1305 - Remove assignments with no effect
hwrng: npcm - modify readl to readb
...
Clang-11 shipped support for outputs to asm goto statments along the
fallthrough path. Double up some of the get_user() and related macros
to be able to take advantage of this extended GNU C extension. This
should help improve the generated code's performance for these accesses.
Cc: Bill Wendling <morbo@google.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Instead of inlining the stac/mov/clac sequence (which also requires
individual exception table entries and several asm instruction
alternatives entries), just generate "call __put_user_nocheck_X" for the
__put_user() cases, the same way we changed __get_user earlier.
Unlike the get_user() case, we didn't have the same nice infrastructure
to just generate the call with a single case, so this actually has to
change some of the infrastructure in order to do this. But that only
cleans up the code further.
So now, instead of using a case statement for the sizes, we just do the
same thing we've done on the get_user() side for a long time: use the
size as an immediate constant to the asm, and generate the asm that way
directly.
In order to handle the special case of 64-bit data on a 32-bit kernel, I
needed to change the calling convention slightly: the data is passed in
%eax[:%edx], the pointer in %ecx, and the return value is also returned
in %ecx. It used to be returned in %eax, but because of how %eax can
now be a double register input, we don't want mix that with a
single-register output.
The actual low-level asm is easier to handle: we'll just share the code
between the checking and non-checking case, with the non-checking case
jumping into the middle of the function. That may sound a bit too
special, but this code is all very very special anyway, so...
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Instead of inlining the whole stac/lfence/mov/clac sequence (which also
requires individual exception table entries and several asm instruction
alternatives entries), just generate "call __get_user_nocheck_X" for the
__get_user() cases.
We can use all the same infrastructure that we already do for the
regular "get_user()", and the end result is simpler source code, and
much simpler code generation.
It also means that when I introduce asm goto with input for
"unsafe_get_user()", there are no nasty interactions with the
__get_user() code.
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge tag 'locks-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux
Pull file locking fix from Jeff Layton:
"Just a single patch to fix up some tracepoint output"
* tag 'locks-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
locks: Remove extra "0x" in tracepoint format specifier
Pull compat mount cleanups from Al Viro:
"The last remnants of mount(2) compat buried by Christoph.
Buried into NFS, that is.
Generally I'm less enthusiastic about "let's use in_compat_syscall()
deep in call chain" kind of approach than Christoph seems to be, but
in this case it's warranted - that had been an NFS-specific wart,
hopefully not to be repeated in any other filesystems (read: any new
filesystem introducing non-text mount options will get NAKed even if
it doesn't mess the layout up).
IOW, not worth trying to grow an infrastructure that would avoid that
use of in_compat_syscall()..."
* 'compat.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fs: remove compat_sys_mount
fs,nfs: lift compat nfs4 mount data handling into the nfs code
nfs: simplify nfs4_parse_monolithic
Pull compat quotactl cleanups from Al Viro:
"More Christoph's compat cleanups: quotactl(2)"
* 'work.quota-compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
quota: simplify the quotactl compat handling
compat: add a compat_need_64bit_alignment_fixup() helper
compat: lift compat_s64 and compat_u64 to <asm-generic/compat.h>
Pull compat iovec cleanups from Al Viro:
"Christoph's series around import_iovec() and compat variant thereof"
* 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
security/keys: remove compat_keyctl_instantiate_key_iov
mm: remove compat_process_vm_{readv,writev}
fs: remove compat_sys_vmsplice
fs: remove the compat readv/writev syscalls
fs: remove various compat readv/writev helpers
iov_iter: transparently handle compat iovecs in import_iovec
iov_iter: refactor rw_copy_check_uvector and import_iovec
iov_iter: move rw_copy_check_uvector() into lib/iov_iter.c
compat.h: fix a spelling error in <linux/compat.h>
Pull copy_and_csum cleanups from Al Viro:
"Saner calling conventions for csum_and_copy_..._user() and friends"
[ Removing 800+ lines of code and cleaning stuff up is good - Linus ]
* 'work.csum_and_copy' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
ppc: propagate the calling conventions change down to csum_partial_copy_generic()
amd64: switch csum_partial_copy_generic() to new calling conventions
sparc64: propagate the calling convention changes down to __csum_partial_copy_...()
xtensa: propagate the calling conventions change down into csum_partial_copy_generic()
mips: propagate the calling convention change down into __csum_partial_copy_..._user()
mips: __csum_partial_copy_kernel() has no users left
mips: csum_and_copy_{to,from}_user() are never called under KERNEL_DS
sparc32: propagate the calling conventions change down to __csum_partial_copy_sparc_generic()
i386: propagate the calling conventions change down to csum_partial_copy_generic()
sh: propage the calling conventions change down to csum_partial_copy_generic()
m68k: get rid of zeroing destination on error in csum_and_copy_from_user()
arm: propagate the calling convention changes down to csum_partial_copy_from_user()
alpha: propagate the calling convention changes down to csum_partial_copy.c helpers
saner calling conventions for csum_and_copy_..._user()
csum_and_copy_..._user(): pass 0xffffffff instead of 0 as initial sum
csum_partial_copy_nocheck(): drop the last argument
unify generic instances of csum_partial_copy_nocheck()
icmp_push_reply(): reorder adding the checksum up
skb_copy_and_csum_bits(): don't bother with the last argument
no conflicts at all. This pull includes:
- A reworked and expanded user-mode Linux document
- Some simplifications and improvements for submitting-patches.rst
- An emergency fix for (some) problems with Sphinx 3.x
- Some welcome automarkup improvements to automatically generate
cross-references to struct definitions and other documents
- The usual collection of translation updates, typo fixes, etc.
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Merge tag 'docs-5.10' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"As hoped, things calmed down for docs this cycle; fewer changes and
almost no conflicts at all. This includes:
- A reworked and expanded user-mode Linux document
- Some simplifications and improvements for submitting-patches.rst
- An emergency fix for (some) problems with Sphinx 3.x
- Some welcome automarkup improvements to automatically generate
cross-references to struct definitions and other documents
- The usual collection of translation updates, typo fixes, etc"
* tag 'docs-5.10' of git://git.lwn.net/linux: (81 commits)
gpiolib: Update indentation in driver.rst for code excerpts
Documentation/admin-guide: tainted-kernels: Fix typo occured
Documentation: better locations for sysfs-pci, sysfs-tagging
docs: programming-languages: refresh blurb on clang support
Documentation: kvm: fix a typo
Documentation: Chinese translation of Documentation/arm64/amu.rst
doc: zh_CN: index files in arm64 subdirectory
mailmap: add entry for <mstarovoitov@marvell.com>
doc: seq_file: clarify role of *pos in ->next()
docs: trace: ring-buffer-design.rst: use the new SPDX tag
Documentation: kernel-parameters: clarify "module." parameters
Fix references to nommu-mmap.rst
docs: rewrite admin-guide/sysctl/abi.rst
docs: fb: Remove vesafb scrollback boot option
docs: fb: Remove sstfb scrollback boot option
docs: fb: Remove matroxfb scrollback boot option
docs: fb: Remove framebuffer scrollback boot option
docs: replace the old User Mode Linux HowTo with a new one
Documentation/admin-guide: blockdev/ramdisk: remove use of "rdev"
Documentation/admin-guide: README & svga: remove use of "rdev"
...
Abel Wu