mirror of https://gitee.com/openkylin/linux.git
61607 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Linus Torvalds
|
e3a251e366 |
This pull request contains mostly fixes for UBI, UBIFS and JFFS2:
UBI:
- Fix a regression around producing a anchor PEB for fastmap.
Due to a change in our locking fastmap was unable to produce
fresh anchors an re-used the existing one a way to often.
UBIFS:
- Fixes for endianness. A few places blindly assumed little endian.
- Fix for a memory leak in the orphan code.
- Fix for a possible crash during a commit.
- Revert a wrong bugfix.
JFFS2:
- Revert a bad bugfix in (false positive from a code checking
tool).
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Merge tag 'upstream-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs
Pull UBI/UBIFS/JFFS2 updates from Richard Weinberger:
"This pull request contains mostly fixes for UBI, UBIFS and JFFS2:
UBI:
- Fix a regression around producing a anchor PEB for fastmap.
Due to a change in our locking fastmap was unable to produce fresh
anchors an re-used the existing one a way to often.
UBIFS:
- Fixes for endianness. A few places blindly assumed little endian.
- Fix for a memory leak in the orphan code.
- Fix for a possible crash during a commit.
- Revert a wrong bugfix.
JFFS2:
- Revert a bad bugfix (false positive from a code checking tool)"
* tag 'upstream-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
Revert "jffs2: Fix possible null-pointer dereferences in jffs2_add_frag_to_fragtree()"
ubi: Fix producing anchor PEBs
ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps
ubifs: do_kill_orphans: Fix a memory leak bug
Revert "ubifs: Fix memory leak bug in alloc_ubifs_info() error path"
ubifs: Fix type of sup->hash_algo
ubifs: Fixed missed le64_to_cpu() in journal
ubifs: Force prandom result to __le32
ubifs: Remove obsolete TODO from dfs_file_write()
ubi: Fix warning static is not at beginning of declaration
ubi: Print skip_check in ubi_dump_vol_info()
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Linus Torvalds
|
97eeb4d9d7 |
New code for 5.5:
- Fill out the build string
- Prevent inode fork extent count overflows
- Refactor the allocator to reduce long tail latency
- Rework incore log locking a little to reduce spinning
- Break up the xfs_iomap_begin functions into smaller more cohesive
parts
- Fix allocation alignment being dropped too early when the allocation
request is for more blocks than an AG is large
- Other small cleanups
- Clean up file buftarg retrieval helpers
- Hoist the resvsp and unresvsp ioctls to the vfs
- Remove the undocumented biosize mount option, since it has never been
mentioned as existing or supported on linux
- Clean up some of the mount option printing and parsing
- Enhance attr leaf verifier to check block structure
- Check dirent and attr names for invalid characters before passing them
to the vfs
- Refactor open-coded bmbt walking
- Fix a few places where we return EIO instead of EFSCORRUPTED after
failing metadata sanity checks
- Fix a synchronization problem between fallocate and aio dio corrupting
the file length
- Clean up various loose ends in the iomap and bmap code
- Convert to the new mount api
- Make sure we always log something when returning EFSCORRUPTED
- Fix some problems where long running scrub loops could trigger soft
lockup warnings and/or fail to exit due to fatal signals pending
- Fix various Coverity complaints
- Remove most of the function pointers from the directory code to reduce
indirection penalties
- Ensure that dquots are attached to the inode when performing unwritten
extent conversion after io
- Deuglify incore projid and crtime types
- Fix another AGI/AGF locking order deadlock when renaming
- Clean up some quota typedefs
- Remove the FSSETDM ioctls which haven't done anything in 20 years
- Fix some memory leaks when mounting the log fails
- Fix an underflow when updating an xattr leaf freemap
- Remove some trivial wrappers
- Report metadata corruption as an error, not a (potentially) fatal
assertion
- Clean up the dir/attr buffer mapping code
- Allow fatal signals to kill scrub during parent pointer checks
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Merge tag 'xfs-5.5-merge-16' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull XFS updates from Darrick Wong:
"For this release, we changed quite a few things.
Highlights:
- Fixed some long tail latency problems in the block allocator
- Removed some long deprecated (and for the past several years no-op)
mount options and ioctls
- Strengthened the extended attribute and directory verifiers
- Audited and fixed all the places where we could return EFSCORRUPTED
without logging anything
- Refactored the old SGI space allocation ioctls to make the
equivalent fallocate calls
- Fixed a race between fallocate and directio
- Fixed an integer overflow when files have more than a few
billion(!) extents
- Fixed a longstanding bug where quota accounting could be incorrect
when performing unwritten extent conversion on a freshly mounted fs
- Fixed various complaints in scrub about soft lockups and
unresponsiveness to signals
- De-vtable'd the directory handling code, which should make it
faster
- Converted to the new mount api, for better or for worse
- Cleaned up some memory leaks
and quite a lot of other smaller fixes and cleanups.
A more detailed summary:
- Fill out the build string
- Prevent inode fork extent count overflows
- Refactor the allocator to reduce long tail latency
- Rework incore log locking a little to reduce spinning
- Break up the xfs_iomap_begin functions into smaller more cohesive
parts
- Fix allocation alignment being dropped too early when the
allocation request is for more blocks than an AG is large
- Other small cleanups
- Clean up file buftarg retrieval helpers
- Hoist the resvsp and unresvsp ioctls to the vfs
- Remove the undocumented biosize mount option, since it has never
been mentioned as existing or supported on linux
- Clean up some of the mount option printing and parsing
- Enhance attr leaf verifier to check block structure
- Check dirent and attr names for invalid characters before passing
them to the vfs
- Refactor open-coded bmbt walking
- Fix a few places where we return EIO instead of EFSCORRUPTED after
failing metadata sanity checks
- Fix a synchronization problem between fallocate and aio dio
corrupting the file length
- Clean up various loose ends in the iomap and bmap code
- Convert to the new mount api
- Make sure we always log something when returning EFSCORRUPTED
- Fix some problems where long running scrub loops could trigger soft
lockup warnings and/or fail to exit due to fatal signals pending
- Fix various Coverity complaints
- Remove most of the function pointers from the directory code to
reduce indirection penalties
- Ensure that dquots are attached to the inode when performing
unwritten extent conversion after io
- Deuglify incore projid and crtime types
- Fix another AGI/AGF locking order deadlock when renaming
- Clean up some quota typedefs
- Remove the FSSETDM ioctls which haven't done anything in 20 years
- Fix some memory leaks when mounting the log fails
- Fix an underflow when updating an xattr leaf freemap
- Remove some trivial wrappers
- Report metadata corruption as an error, not a (potentially) fatal
assertion
- Clean up the dir/attr buffer mapping code
- Allow fatal signals to kill scrub during parent pointer checks"
* tag 'xfs-5.5-merge-16' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (198 commits)
xfs: allow parent directory scans to be interrupted with fatal signals
xfs: remove the mappedbno argument to xfs_da_get_buf
xfs: remove the mappedbno argument to xfs_da_read_buf
xfs: split xfs_da3_node_read
xfs: remove the mappedbno argument to xfs_dir3_leafn_read
xfs: remove the mappedbno argument to xfs_dir3_leaf_read
xfs: remove the mappedbno argument to xfs_attr3_leaf_read
xfs: remove the mappedbno argument to xfs_da_reada_buf
xfs: improve the xfs_dabuf_map calling conventions
xfs: refactor xfs_dabuf_map
xfs: simplify mappedbno handling in xfs_da_{get,read}_buf
xfs: report corruption only as a regular error
xfs: Remove kmem_zone_free() wrapper
xfs: Remove kmem_zone_destroy() wrapper
xfs: Remove slab init wrappers
xfs: fix attr leaf header freemap.size underflow
xfs: fix some memory leaks in log recovery
xfs: fix another missing include
xfs: remove XFS_IOC_FSSETDM and XFS_IOC_FSSETDM_BY_HANDLE
xfs: remove duplicated include from xfs_dir2_data.c
...
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Linus Torvalds
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937d6eefc7 |
Here's the main documentation changes for 5.5:
- Various kerneldoc script enhancements.
- More RST conversions; those are slowing down as we run out of things to
convert, but we're a ways from done still.
- Dan's "maintainer profile entry" work landed at last. Now we just need
to get maintainers to fill in the profiles...
- A reworking of the parallel build setup to work better with a variety of
systems (and to not take over huge systems entirely in particular).
- The MAINTAINERS file is now converted to RST during the build.
Hopefully nobody ever tries to print this thing, or they will need to
load a lot of paper.
- A script and documentation making it easy for maintainers to add Link:
tags at commit time.
Also included is the removal of a bunch of spurious CR characters.
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Merge tag 'docs-5.5a' of git://git.lwn.net/linux
Pull Documentation updates from Jonathan Corbet:
"Here are the main documentation changes for 5.5:
- Various kerneldoc script enhancements.
- More RST conversions; those are slowing down as we run out of
things to convert, but we're a ways from done still.
- Dan's "maintainer profile entry" work landed at last. Now we just
need to get maintainers to fill in the profiles...
- A reworking of the parallel build setup to work better with a
variety of systems (and to not take over huge systems entirely in
particular).
- The MAINTAINERS file is now converted to RST during the build.
Hopefully nobody ever tries to print this thing, or they will need
to load a lot of paper.
- A script and documentation making it easy for maintainers to add
Link: tags at commit time.
Also included is the removal of a bunch of spurious CR characters"
* tag 'docs-5.5a' of git://git.lwn.net/linux: (91 commits)
docs: remove a bunch of stray CRs
docs: fix up the maintainer profile document
libnvdimm, MAINTAINERS: Maintainer Entry Profile
Maintainer Handbook: Maintainer Entry Profile
MAINTAINERS: Reclaim the P: tag for Maintainer Entry Profile
docs, parallelism: Rearrange how jobserver reservations are made
docs, parallelism: Do not leak blocking mode to other readers
docs, parallelism: Fix failure path and add comment
Documentation: Remove bootmem_debug from kernel-parameters.txt
Documentation: security: core.rst: fix warnings
Documentation/process/howto/kokr: Update for 4.x -> 5.x versioning
Documentation/translation: Use Korean for Korean translation title
docs/memory-barriers.txt: Remove remaining references to mmiowb()
docs/memory-barriers.txt/kokr: Update I/O section to be clearer about CPU vs thread
docs/memory-barriers.txt/kokr: Fix style, spacing and grammar in I/O section
Documentation/kokr: Kill all references to mmiowb()
docs/memory-barriers.txt/kokr: Rewrite "KERNEL I/O BARRIER EFFECTS" section
docs: Add initial documentation for devfreq
Documentation: Document how to get links with git am
docs: Add request_irq() documentation
...
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Linus Torvalds
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8328dd2f39 |
pstore bug fix
- add missing "static" (Ben Dooks) -----BEGIN PGP SIGNATURE----- Comment: Kees Cook <kees@outflux.net> iQJKBAABCgA0FiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAl3dUowWHGtlZXNjb29r QGNocm9taXVtLm9yZwAKCRCJcvTf3G3AJpZXD/9OHY0SaBLvZYmApI7l6dV4eN1I OcyrC9jtjQDuSaTQcwZPIDFvJAtPM32wbhI6SJztaF+tuWhQzeOnRBaupfYoWS0e cbaUCG/mqrCbmGOjMxcqQbkAY0uyOuRUJItrX5WZ4YspcrMjdHi3sTj4ItHaaXvK SjSxhITM/SQlgnK/4oysC3sdMdDac9OEdtDomltYc2qxou4b4nPWuc4epTTHLXBQ b+LjZXQBbdAQN7dcgWB4lgzg1eUPqkkFNUDw2hgcqZN1RHKzXGwruE+E4PsgY2Fw F/j+cSLu/dExVPzEGYcMV3ZS09ix9LHmO95LOy2N2TPD9Ax1KJbRb58P+1a1SDwb kwzMxyJlcUmqKRBfTTnVW4+g3v5qvrmducGqdmJrhOoNxCtwvRID1jRsm/DGIhdk /ZJDpHl1lg7VECcwXjTP+0+FYNGJPrb4MePXAMXbi/2/Zt1FDtf2z+Ubo220YMJM s82YMn8yVuBrXGXxjL8KmGvvRVFKCtGabvvdMTqhmIcp938CxI6hVfSU/B4SKciO N8R6Wl78pDDibXipTRCC3MXUNBIZi9qWfXLLmcrx0JRCjgfwSL7UWE/xrPDSr+6u tIDvOD08Ym1BXTtvEZoqZKuEViW04nVVukXi/rQXeyipk6tg+HfONfi2RRTCDzV5 DbMj9pJB9373N0+h5w== =JD6z -----END PGP SIGNATURE----- Merge tag 'pstore-v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull pstore bug fix from Kees Cook: - add missing "static" (Ben Dooks) * tag 'pstore-v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: pstore: Make pstore_choose_compression() static |
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Linus Torvalds
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596cf45cbf |
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton: "Incoming: - a small number of updates to scripts/, ocfs2 and fs/buffer.c - most of MM I still have quite a lot of material (mostly not MM) staged after linux-next due to -next dependencies. I'll send those across next week as the preprequisites get merged up" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (135 commits) mm/page_io.c: annotate refault stalls from swap_readpage mm/Kconfig: fix trivial help text punctuation mm/Kconfig: fix indentation mm/memory_hotplug.c: remove __online_page_set_limits() mm: fix typos in comments when calling __SetPageUptodate() mm: fix struct member name in function comments mm/shmem.c: cast the type of unmap_start to u64 mm: shmem: use proper gfp flags for shmem_writepage() mm/shmem.c: make array 'values' static const, makes object smaller userfaultfd: require CAP_SYS_PTRACE for UFFD_FEATURE_EVENT_FORK fs/userfaultfd.c: wp: clear VM_UFFD_MISSING or VM_UFFD_WP during userfaultfd_register() userfaultfd: wrap the common dst_vma check into an inlined function userfaultfd: remove unnecessary WARN_ON() in __mcopy_atomic_hugetlb() userfaultfd: use vma_pagesize for all huge page size calculation mm/madvise.c: use PAGE_ALIGN[ED] for range checking mm/madvise.c: replace with page_size() in madvise_inject_error() mm/mmap.c: make vma_merge() comment more easy to understand mm/hwpoison-inject: use DEFINE_DEBUGFS_ATTRIBUTE to define debugfs fops autonuma: reduce cache footprint when scanning page tables autonuma: fix watermark checking in migrate_balanced_pgdat() ... |
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Linus Torvalds
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31764f1b6d |
for-linus-20191129
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Merge tag 'for-linus-20191129' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"I wasn't going to send this one off so soon, but unfortunately one of
the fixes from the previous pull broke the build on some archs. So I'm
sending this sooner rather than later. This contains:
- Add highmem.h include for io_uring, because of the kmap() additions
from last round. For some reason the build bot didn't spot this
even though it sat for days.
- Three minor ';' removals
- Add support for the Beurer CD-on-a-chip device
- Make io_uring work on MMU-less archs"
* tag 'for-linus-20191129' of git://git.kernel.dk/linux-block:
io_uring: fix missing kmap() declaration on powerpc
ataflop: Remove unneeded semicolon
block: sunvdc: Remove unneeded semicolon
drbd: Remove unneeded semicolon
io_uring: add mapping support for NOMMU archs
sr_vendor: support Beurer GL50 evo CD-on-a-chip devices.
cdrom: respect device capabilities during opening action
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Linus Torvalds
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ceb3074745 |
y2038: syscall implementation cleanups
This is a series of cleanups for the y2038 work, mostly intended for namespace cleaning: the kernel defines the traditional time_t, timeval and timespec types that often lead to y2038-unsafe code. Even though the unsafe usage is mostly gone from the kernel, having the types and associated functions around means that we can still grow new users, and that we may be missing conversions to safe types that actually matter. There are still a number of driver specific patches needed to get the last users of these types removed, those have been submitted to the respective maintainers. Link: https://lore.kernel.org/lkml/20191108210236.1296047-1-arnd@arndb.de/ Signed-off-by: Arnd Bergmann <arnd@arndb.de> -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCAAGBQJd3D+wAAoJEJpsee/mABjZfdcQAJvl6e+4ddKoDMIVJqVCE25N meFRgA7S8jy6BefEVeUgI8TxK+amGO36szMBUEnZxSSxq9u+gd13m5bEK6Xq/ov7 4KTAiA3Irm/W5FBTktu1zc5ROIra1Xj7jLdubf8wEC3viSXIXB3+68Y28iBN7D2O k9kSpwINC5lWeC8guZy2I+2yc4ywUEXao9nVh8C/J+FQtU02TcdLtZop9OhpAa8u U19VVH3WHkQI7ZfLvBTUiYK6tlYTiYCnpr8l6sm850CnVv1fzBW+DzmVhPJ6FdFd 4m5staC0sQ6gVqtjVMBOtT5CdzREse6hpwbKo2GRWFroO5W9tljMOJJXHvv/f6kz DxrpUmj37JuRbqAbr8KDmQqPo6M2CRkxFxjol1yh5ER63u1xMwLm/PQITZIMDvPO jrFc2C2SdM2E9bKP/RMCVoKSoRwxCJ5IwJ2AF237rrU0sx/zB2xsrOGssx5CWEgc 3bbk6tDQujJJubnCfgRy1tTxpLZOHEEKw8YhFLLbR2LCtA9pA/0rfLLad16cjA5e 5jIHxfsFc23zgpzrJeB7kAF/9xgu1tlA5BotOs3VBE89LtWOA9nK5dbPXng6qlUe er3xLCfS38ovhUw6DusQpaYLuaYuLM7DKO4iav9kuTMcY9GkbPk7vDD3KPGh2goy hY5cSM8+kT1q/THLnUBH =Bdbv -----END PGP SIGNATURE----- Merge tag 'y2038-cleanups-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground Pull y2038 cleanups from Arnd Bergmann: "y2038 syscall implementation cleanups This is a series of cleanups for the y2038 work, mostly intended for namespace cleaning: the kernel defines the traditional time_t, timeval and timespec types that often lead to y2038-unsafe code. Even though the unsafe usage is mostly gone from the kernel, having the types and associated functions around means that we can still grow new users, and that we may be missing conversions to safe types that actually matter. There are still a number of driver specific patches needed to get the last users of these types removed, those have been submitted to the respective maintainers" Link: https://lore.kernel.org/lkml/20191108210236.1296047-1-arnd@arndb.de/ * tag 'y2038-cleanups-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground: (26 commits) y2038: alarm: fix half-second cut-off y2038: ipc: fix x32 ABI breakage y2038: fix typo in powerpc vdso "LOPART" y2038: allow disabling time32 system calls y2038: itimer: change implementation to timespec64 y2038: move itimer reset into itimer.c y2038: use compat_{get,set}_itimer on alpha y2038: itimer: compat handling to itimer.c y2038: time: avoid timespec usage in settimeofday() y2038: timerfd: Use timespec64 internally y2038: elfcore: Use __kernel_old_timeval for process times y2038: make ns_to_compat_timeval use __kernel_old_timeval y2038: socket: use __kernel_old_timespec instead of timespec y2038: socket: remove timespec reference in timestamping y2038: syscalls: change remaining timeval to __kernel_old_timeval y2038: rusage: use __kernel_old_timeval y2038: uapi: change __kernel_time_t to __kernel_old_time_t y2038: stat: avoid 'time_t' in 'struct stat' y2038: ipc: remove __kernel_time_t reference from headers y2038: vdso: powerpc: avoid timespec references ... |
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Linus Torvalds
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0da522107e |
compat_ioctl: remove most of fs/compat_ioctl.c
As part of the cleanup of some remaining y2038 issues, I came to fs/compat_ioctl.c, which still has a couple of commands that need support for time64_t. In completely unrelated work, I spent time on cleaning up parts of this file in the past, moving things out into drivers instead. After Al Viro reviewed an earlier version of this series and did a lot more of that cleanup, I decided to try to completely eliminate the rest of it and move it all into drivers. This series incorporates some of Al's work and many patches of my own, but in the end stops short of actually removing the last part, which is the scsi ioctl handlers. I have patches for those as well, but they need more testing or possibly a rewrite. Signed-off-by: Arnd Bergmann <arnd@arndb.de> -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCAAGBQJdsHCdAAoJEJpsee/mABjZtYkP/1JGl3jFv3Iq/5BCdPkaePP1 RtMJRNfURgK3GeuHUui330PvVjI/pLWXU/VXMK2MPTASpJLzYz3uCaZrpVWEMpDZ +ImzGmgJkITlW1uWU3zOcQhOxTyb1hCZ0Ci+2xn9QAmyOL7prXoXCXDWv3h6iyiF lwG+nW+HNtyx41YG+9bRfKNoG0ZJ+nkJ70BV6u0acQHXWn7Xuupa9YUmBL87hxAL 6dlJfLTJg6q8QSv/Q6LxslfWk2Ti8OOJZOwtFM5R8Bgl0iUcvshiRCKfv/3t9jXD dJNvF1uq8z+gracWK49Qsfq5dnZ2ZxHFUo9u0NjbCrxNvWH/sdvhbaUBuJI75seH VIznCkdxFhrqitJJ8KmxANxG08u+9zSKjSlxG2SmlA4qFx/AoStoHwQXcogJscNb YIXYKmWBvwPzYu09QFAXdHFPmZvp/3HhMWU6o92lvDhsDwzkSGt3XKhCJea4DCaT m+oCcoACqSWhMwdbJOEFofSub4bY43s5iaYuKes+c8O261/Dwg6v/pgIVez9mxXm TBnvCsotq5m8wbwzv99eFqGeJH8zpDHrXxEtRR5KQqMqjLq/OQVaEzmpHZTEuK7n e/V/PAKo2/V63g4k6GApQXDxnjwT+m0aWToWoeEzPYXS6KmtWC91r4bWtslu3rdl bN65armTm7bFFR32Avnu =lgCl -----END PGP SIGNATURE----- Merge tag 'compat-ioctl-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground Pull removal of most of fs/compat_ioctl.c from Arnd Bergmann: "As part of the cleanup of some remaining y2038 issues, I came to fs/compat_ioctl.c, which still has a couple of commands that need support for time64_t. In completely unrelated work, I spent time on cleaning up parts of this file in the past, moving things out into drivers instead. After Al Viro reviewed an earlier version of this series and did a lot more of that cleanup, I decided to try to completely eliminate the rest of it and move it all into drivers. This series incorporates some of Al's work and many patches of my own, but in the end stops short of actually removing the last part, which is the scsi ioctl handlers. I have patches for those as well, but they need more testing or possibly a rewrite" * tag 'compat-ioctl-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground: (42 commits) scsi: sd: enable compat ioctls for sed-opal pktcdvd: add compat_ioctl handler compat_ioctl: move SG_GET_REQUEST_TABLE handling compat_ioctl: ppp: move simple commands into ppp_generic.c compat_ioctl: handle PPPIOCGIDLE for 64-bit time_t compat_ioctl: move PPPIOCSCOMPRESS to ppp_generic compat_ioctl: unify copy-in of ppp filters tty: handle compat PPP ioctls compat_ioctl: move SIOCOUTQ out of compat_ioctl.c compat_ioctl: handle SIOCOUTQNSD af_unix: add compat_ioctl support compat_ioctl: reimplement SG_IO handling compat_ioctl: move WDIOC handling into wdt drivers fs: compat_ioctl: move FITRIM emulation into file systems gfs2: add compat_ioctl support compat_ioctl: remove unused convert_in_user macro compat_ioctl: remove last RAID handling code compat_ioctl: remove /dev/raw ioctl translation compat_ioctl: remove PCI ioctl translation compat_ioctl: remove joystick ioctl translation ... |
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Mike Rapoport
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3c1c24d91f |
userfaultfd: require CAP_SYS_PTRACE for UFFD_FEATURE_EVENT_FORK
A while ago Andy noticed (http://lkml.kernel.org/r/CALCETrWY+5ynDct7eU_nDUqx=okQvjm=Y5wJvA4ahBja=CQXGw@mail.gmail.com) that UFFD_FEATURE_EVENT_FORK used by an unprivileged user may have security implications. As the first step of the solution the following patch limits the availably of UFFD_FEATURE_EVENT_FORK only for those having CAP_SYS_PTRACE. The usage of CAP_SYS_PTRACE ensures compatibility with CRIU. Yet, if there are other users of non-cooperative userfaultfd that run without CAP_SYS_PTRACE, they would be broken :( Current implementation of UFFD_FEATURE_EVENT_FORK modifies the file descriptor table from the read() implementation of uffd, which may have security implications for unprivileged use of the userfaultfd. Limit availability of UFFD_FEATURE_EVENT_FORK only for callers that have CAP_SYS_PTRACE. Link: http://lkml.kernel.org/r/1572967777-8812-2-git-send-email-rppt@linux.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Reviewed-by: Andrea Arcangeli <aarcange@redhat.com> Cc: Daniel Colascione <dancol@google.com> Cc: Jann Horn <jannh@google.com> Cc: Lokesh Gidra <lokeshgidra@google.com> Cc: Nick Kralevich <nnk@google.com> Cc: Nosh Minwalla <nosh@google.com> Cc: Pavel Emelyanov <ovzxemul@gmail.com> Cc: Tim Murray <timmurray@google.com> Cc: Aleksa Sarai <cyphar@cyphar.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Andrea Arcangeli
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9d4678eb17 |
fs/userfaultfd.c: wp: clear VM_UFFD_MISSING or VM_UFFD_WP during userfaultfd_register()
If the registration is repeated without VM_UFFD_MISSING or VM_UFFD_WP they need to be cleared. Currently setting UFFDIO_REGISTER_MODE_WP returns -EINVAL, so this patch is a noop until the UFFDIO_REGISTER_MODE_WP support is applied. Link: http://lkml.kernel.org/r/20191004232834.GP13922@redhat.com Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Reported-by: Wei Yang <richardw.yang@linux.intel.com> Reviewed-by: Wei Yang <richardw.yang@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Wei Yang
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188b04a7d9 |
hugetlb: remove unused hstate in hugetlb_fault_mutex_hash()
The first parameter hstate in function hugetlb_fault_mutex_hash() is not used anymore. This patch removes it. [akpm@linux-foundation.org: various build fixes] [cai@lca.pw: fix a GCC compilation warning] Link: http://lkml.kernel.org/r/1570544108-32331-1-git-send-email-cai@lca.pw Link: http://lkml.kernel.org/r/20191005003302.785-1-richardw.yang@linux.intel.com Signed-off-by: Wei Yang <richardw.yang@linux.intel.com> Signed-off-by: Qian Cai <cai@lca.pw> Suggested-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Hugh Dickins <hughd@google.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Piotr Sarna
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1ab5b82f54 |
hugetlbfs: add O_TMPFILE support
With hugetlbfs, a common pattern for mapping anonymous huge pages is to create a temporary file first. Currently libraries like libhugetlbfs and seastar create these with a standard mkstemp+unlink trick, but it would be more robust to be able to simply pass the O_TMPFILE flag to open(). O_TMPFILE is already supported by several file systems like ext4 and xfs. The implementation simply uses the existi= ng d_tmpfile utility function to instantiate the dcache entry for the file. Tested manually by successfully creating a temporary file by opening it with (O_TMPFILE|O_RDWR) on mounted hugetlbfs and successfully mapping 2M huge pages with it. Without the patch, trying to open a file with O_TMPFILE results in -ENOSUP. Link: http://lkml.kernel.org/r/bc9383eff6e1374d79f3a92257ae829ba1e6ae60.1573285189.git.p.sarna@tlen.pl Signed-off-by: Piotr Sarna <p.sarna@tlen.pl> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mike Kravetz
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8fc312b32b |
mm/hugetlbfs: fix error handling when setting up mounts
It is assumed that the hugetlbfs_vfsmount[] array will contain either a
valid vfsmount pointer or NULL for each hstate after initialization.
Changes made while converting to use fs_context broke this assumption.
While fixing the hugetlbfs_vfsmount issue, it was discovered that
init_hugetlbfs_fs never did correctly clean up when encountering a vfs
mount error.
It was found during code inspection. A small memory allocation failure
would be the most likely cause of taking a error path with the bug.
This is unlikely to happen as this is early init code.
Link: http://lkml.kernel.org/r/94b6244d-2c24-e269-b12c-e3ba694b242d@oracle.com
Reported-by: Chengguang Xu <cgxu519@mykernel.net>
Fixes:
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Mike Kravetz
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552546366a |
hugetlbfs: hugetlb_fault_mutex_hash() cleanup
A new clang diagnostic (-Wsizeof-array-div) warns about the calculation to determine the number of u32's in an array of unsigned longs. Suppress warning by adding parentheses. While looking at the above issue, noticed that the 'address' parameter to hugetlb_fault_mutex_hash is no longer used. So, remove it from the definition and all callers. No functional change. Link: http://lkml.kernel.org/r/20190919011847.18400-1-mike.kravetz@oracle.com Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> Reported-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Davidlohr Bueso <dbueso@suse.de> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Ilie Halip <ilie.halip@gmail.com> Cc: David Bolvansky <david.bolvansky@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Konstantin Khlebnikov
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a92853b674 |
fs/direct-io.c: keep dio_warn_stale_pagecache() when CONFIG_BLOCK=n
This helper prints warning if direct I/O write failed to invalidate cache,
and set EIO at inode to warn usersapce about possible data corruption.
See also commit
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Ben Dooks
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2b211dc04c |
fs/buffer.c: include internal.h for missing declarations
The declarations of __block_write_begin_int and guard_bio_eod are needed from internal.h so include it to fix the following sparse warnings: fs/buffer.c:1930:5: warning: symbol '__block_write_begin_int' was not declared. Should it be static? fs/buffer.c:2994:6: warning: symbol 'guard_bio_eod' was not declared. Should it be static? Link: http://lkml.kernel.org/r/20191011170039.16100-1-ben.dooks@codethink.co.uk Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Saurav Girepunje
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1d70667973 |
fs/buffer.c: fix use true/false for bool type
Use true/false for bool return type of has_bh_in_lru(). Link: http://lkml.kernel.org/r/20191029040529.GA7625@saurav Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Ding Xiang
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188c523e1c |
ocfs2: fix passing zero to 'PTR_ERR' warning
Fix a static code checker warning:
fs/ocfs2/acl.c:331
ocfs2_acl_chmod() warn: passing zero to 'PTR_ERR'
Link: http://lkml.kernel.org/r/1dee278b-6c96-eec2-ce76-fe6e07c6e20f@linux.alibaba.com
Fixes:
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Linus Torvalds
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3b805ca177 |
audit/stable-5.5 PR 20191126
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Merge tag 'audit-pr-20191126' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit updates from Paul Moore:
"Audit is back for v5.5, albeit with only two patches:
- Allow for the auditing of suspicious O_CREAT usage via the new
AUDIT_ANOM_CREAT record.
- Remove a redundant if-conditional check found during code analysis.
It's a minor change, but when the pull request is only two patches
long, you need filler in the pull request email"
[ Heh on the pull request filler. I wish more people tried to write
better pull request messages, even if maybe it's not worth it for the
trivial cases ;^) - Linus ]
* tag 'audit-pr-20191126' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
audit: remove redundant condition check in kauditd_thread()
audit: Report suspicious O_CREAT usage
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Linus Torvalds
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6a965666b7 |
Pipework for general notification queue
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Merge tag 'notifications-pipe-prep-20191115' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull pipe rework from David Howells:
"This is my set of preparatory patches for building a general
notification queue on top of pipes. It makes a number of significant
changes:
- It removes the nr_exclusive argument from __wake_up_sync_key() as
this is always 1. This prepares for the next step:
- Adds wake_up_interruptible_sync_poll_locked() so that poll can be
woken up from a function that's holding the poll waitqueue
spinlock.
- Change the pipe buffer ring to be managed in terms of unbounded
head and tail indices rather than bounded index and length. This
means that reading the pipe only needs to modify one index, not
two.
- A selection of helper functions are provided to query the state of
the pipe buffer, plus a couple to apply updates to the pipe
indices.
- The pipe ring is allowed to have kernel-reserved slots. This allows
many notification messages to be spliced in by the kernel without
allowing userspace to pin too many pages if it writes to the same
pipe.
- Advance the head and tail indices inside the pipe waitqueue lock
and use wake_up_interruptible_sync_poll_locked() to poke poll
without having to take the lock twice.
- Rearrange pipe_write() to preallocate the buffer it is going to
write into and then drop the spinlock. This allows kernel
notifications to then be added the ring whilst it is filling the
buffer it allocated. The read side is stalled because the pipe
mutex is still held.
- Don't wake up readers on a pipe if there was already data in it
when we added more.
- Don't wake up writers on a pipe if the ring wasn't full before we
removed a buffer"
* tag 'notifications-pipe-prep-20191115' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
pipe: Remove sync on wake_ups
pipe: Increase the writer-wakeup threshold to reduce context-switch count
pipe: Check for ring full inside of the spinlock in pipe_write()
pipe: Remove redundant wakeup from pipe_write()
pipe: Rearrange sequence in pipe_write() to preallocate slot
pipe: Conditionalise wakeup in pipe_read()
pipe: Advance tail pointer inside of wait spinlock in pipe_read()
pipe: Allow pipes to have kernel-reserved slots
pipe: Use head and tail pointers for the ring, not cursor and length
Add wake_up_interruptible_sync_poll_locked()
Remove the nr_exclusive argument from __wake_up_sync_key()
pipe: Reduce #inclusion of pipe_fs_i.h
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Linus Torvalds
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32ef955363 |
\n
-----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEq1nRK9aeMoq1VSgcnJ2qBz9kQNkFAl3hAmYACgkQnJ2qBz9k QNna+AgAs/6eWmQqEwij9+E761bELuMXIp8Ej9OxrBgE9Uls0VsMOsG1xfFoue+J sZme9XSUQ+STqPQzTi6FH4x1n5kL3VnZzjRDv9qpsRCfMzX1MbibczNvXuCCgGuP cKr3gPFX+GSDwQPEJX7tzF5zLZ1t1XOc4TD/H6v/X+2Nr/N1lnYeAaNcfFiGMyg1 Pk9JK2/qUoqWASCx6zxHG/lfjmaSSIrOwaKFACNHH0/6Luc1M7Oee3M9T/jS2IEo 8/WTS4o9CwOUFaEPemuUBv4yHyBpbJwsM+emwNKrNDSWbI5vP3ECOO7c4c+1/abS FcwPvkHyAQnpSgmeYlhfTjZfA/A6+w== =m7WG -----END PGP SIGNATURE----- Merge tag 'fsnotify_for_v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull fsnotify updates from Jan Kara: "Three fsnotify cleanups" * tag 'fsnotify_for_v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: fsnotify: Add git tree reference to MAINTAINERS fsnotify/fdinfo: exportfs_encode_inode_fh() takes pointer as 4th argument fsnotify: move declaration of fsnotify_mark_connector_cachep to fsnotify.h |
|
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Linus Torvalds
|
b8072d5b3c |
\n
-----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEq1nRK9aeMoq1VSgcnJ2qBz9kQNkFAl3hAFIACgkQnJ2qBz9k QNkV/gf+Kwn7xHg76YXd15lZYBzhgj/ABAYEEAAVY49OOCK5+XVmmAufHesMZ2lU Solt8PvbQ8d5786bWpaYXgrTU3JW37c6x1MDUPDLQ8goXWzx7pZWvD+Yup558rDa H1aoqvFKLgpeVVqkUdvvv2CDbgZyOgGlkDqWeS+c5pZd1NPFZzUAoU26slvQ5h4f t41mbavOIm5DChQ5UjwRNw+pb09GXaHrPBRJwa1XuJYJWAansBcQIsxiiqt/43Gn AzwUGrsz4vrPBk+Kcd0SGb8vinFVQr19gBFKFeN3rPFUEUn6T0FPBqaYeiNTNE37 AqASYKlIuhcSf0Wdvx6vxwSHsFl5VA== =NGxV -----END PGP SIGNATURE----- Merge tag 'for_v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull ext2, quota, reiserfs cleanups and fixes from Jan Kara: - Refactor the quota on/off kernel internal interfaces (mostly for ubifs quota support as ubifs does not want to have inodes holding quota information) - A few other small quota fixes and cleanups - Various small ext2 fixes and cleanups - Reiserfs xattr fix and one cleanup * tag 'for_v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: (28 commits) ext2: code cleanup for descriptor_loc() fs/quota: handle overflows of sysctl fs.quota.* and report as unsigned long ext2: fix improper function comment ext2: code cleanup for ext2_try_to_allocate() ext2: skip unnecessary operations in ext2_try_to_allocate() ext2: Simplify initialization in ext2_try_to_allocate() ext2: code cleanup by calling ext2_group_last_block_no() ext2: introduce new helper ext2_group_last_block_no() reiserfs: replace open-coded atomic_dec_and_mutex_lock() ext2: check err when partial != NULL quota: Handle quotas without quota inodes in dquot_get_state() quota: Make dquot_disable() work without quota inodes quota: Drop dquot_enable() fs: Use dquot_load_quota_inode() from filesystems quota: Rename vfs_load_quota_inode() to dquot_load_quota_inode() quota: Simplify dquot_resume() quota: Factor out setup of quota inode quota: Check that quota is not dirty before release quota: fix livelock in dquot_writeback_dquots ext2: don't set *count in the case of failure in ext2_try_to_allocate() ... |
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Linus Torvalds
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e2d73c302b |
Updates since last change:
- Introduce superblock checksum support; - Set iowait when waiting I/O for sync decompression path; - Several code cleanups. -----BEGIN PGP SIGNATURE----- iIwEABYIADQWIQThPAmQN9sSA0DVxtI5NzHcH7XmBAUCXd/dwRYcZ2FveGlhbmcy NUBodWF3ZWkuY29tAAoJEDk3MdwfteYEjd4BANBpFIxoenCeu9A8XVG4TVIobyoz g/eci9QZr+rgPGl/AP93QFEAPmjwQi6iNQREwvXQ96EE9rMX0Legt3tFeHPRCw== =xdz3 -----END PGP SIGNATURE----- Merge tag 'erofs-for-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs Pull erofs updates from Gao Xiang: "No major kernel updates for this round since I'm fully diving into LZMA algorithm internals now to provide high CR XZ algorihm support. That needs more work and time for me to get a better compression time. Summary: - Introduce superblock checksum support - Set iowait when waiting I/O for sync decompression path - Several code cleanups" * tag 'erofs-for-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs: erofs: remove unnecessary output in erofs_show_options() erofs: drop all vle annotations for runtime names erofs: support superblock checksum erofs: set iowait for sync decompression erofs: clean up decompress queue stuffs erofs: get rid of __stagingpage_alloc helper erofs: remove dead code since managed cache is now built-in erofs: clean up collection handling routines |
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Linus Torvalds
|
21b26d2679 |
Various smb3 fixes (including 12 for stable) and also features (addition of multichannel support)
-----BEGIN PGP SIGNATURE----- iQGzBAABCAAdFiEE6fsu8pdIjtWE/DpLiiy9cAdyT1EFAl3fB2gACgkQiiy9cAdy T1G4rgwAwTVvUYOmUVxJt1OxJDAnVxLXOH08FmrSL08nacrUCb6fPRw0z0Eb65SB 4/Yc3xIH+bJInNpACKZVY0ghPlDYC4u7AtLUZqm4+ruDVSjoWmF4s38WsNCrZywm uAWq4p+j5A62uGdgdSzVxdUJkSLGRTc+7ib+y/TZ2U4BLjb6AY2etUtOpnA6lQ4R UHvjf7leHw55pvPbNnpZ/2zT18KpPH8twCj0f3lH4yt8Akw0p/va6tRcfsmE2plh V3dxiPmS86otXFPyHpu9B9plrxJCcGuYUL+R8pPpbLD3MZMsdK7J+sGNdayOoLXl bpuoTvl3LThEwcg7bFeB/jHXGx95KPm3vh99lrZvbM9Snya+ueSfudrhmoqCEiSo 5ri1tWH7GlPr9nEaxp/aYB2LZENpbYvwn0yxoUdgK+R9EN5F3utUwK54CgYPVz9Y 1zp0LksafWZu7NrIPOuoq+/ATJ1WgbDYrhotk9fwaZoc2EsUfJd0I31XGECisjdh fcHNxbA5 =EIrP -----END PGP SIGNATURE----- Merge tag '5.5-rc-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6 Pull cifs updates from Steve French: "Various smb3 fixes (including 12 for stable) and also features (addition of multichannel support)" * tag '5.5-rc-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6: (41 commits) CIFS: fix a white space issue in cifs_get_inode_info() cifs: update internal module version number cifs: Always update signing key of first channel cifs: Fix retrieval of DFS referrals in cifs_mount() cifs: Fix potential softlockups while refreshing DFS cache cifs: Fix lookup of root ses in DFS referral cache cifs: Fix use-after-free bug in cifs_reconnect() cifs: dump channel info in DebugData smb3: dump in_send and num_waiters stats counters by default cifs: try harder to open new channels CIFS: Properly process SMB3 lease breaks cifs: move cifsFileInfo_put logic into a work-queue cifs: try opening channels after mounting CIFS: refactor cifs_get_inode_info() cifs: switch servers depending on binding state cifs: add server param cifs: add multichannel mount options and data structs cifs: sort interface list by speed CIFS: Fix SMB2 oplock break processing cifs: don't use 'pre:' for MODULE_SOFTDEP ... |
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Linus Torvalds
|
8f45533e9d |
f2fs-for-5.5-rc1
In this round, we've introduced fairly small number of patches as below. Enhancement: - improve the in-place-update IO flow - allocate segment to guarantee no GC for pinned files Bug fix: - fix updatetime in lazytime mode - potential memory leak in f2fs_listxattr - record parent inode number in rename2 correctly - fix deadlock in f2fs_gc along with atomic writes - avoid needless data migration in GC -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE00UqedjCtOrGVvQiQBSofoJIUNIFAl3e1XkACgkQQBSofoJI UNJ0GhAAhVIX4J91CLnVSh0ik1XCaI6h/dFeS6kbDd8oxzQm/qt64b59aZqgy7Rk iblGWfj8uPP5yO60pqb5uN4a0hybptVZSEldbhF0Xv0zUeVoT7C1ksTMrdUd1p7d YkO8G+V4QBBrtpKG1KKKEncrvcdx4n9QHxGsRh4z5vXZH7sEmH7+N8OE88MaPjdZ UWqYk0S0GoZBhPe7c8pQuD/PM+WJJH4Lewgw5kK21eAjOKI+yZKb+bY2tGjo5dA1 nzYO72CRMV4VEKsnxTZ/LCB2kCXeexaGuiVPyHjCmgAh990cLjsCWIbJ8EJu7uAa vAo6/EMfgfPkPt5Y7uWGR4EeNT7AFhUoMuoQ9zdXzecY48D4Gz58o87Q+OFY3ipZ W2OSf92pEJyfumE5o8wN435gaRYUjjCo1SMoIQABNav411XrBVoRwjvkV3DyA6af Bs1bafz2hR/E1q0uoZvLWC5waiHy9605OkKMs/y8IRsn6yhRep/tv3KLk2Dz3fOO LxenhuVO9bQDCheEcH15qIljxTuyfTyUOa9UrFXOwn4mK61J8A/Gs+SiqW0y28oA feSw7cLPxK0OlYQgql24JfJN/Xt523WmCSfXfe7TCUDTDkBpmsdhFwHYZyCLzqt+ FyBhf2DF/BGzKMT28oc7StO43mIvOc1Wk+jfJFW+hld5ncAJxCE= =qyrd -----END PGP SIGNATURE----- Merge tag 'f2fs-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs Pull f2fs updates from Jaegeuk Kim: "In this round, we've introduced fairly small number of patches as below. Enhancements: - improve the in-place-update IO flow - allocate segment to guarantee no GC for pinned files Bug fixes: - fix updatetime in lazytime mode - potential memory leak in f2fs_listxattr - record parent inode number in rename2 correctly - fix deadlock in f2fs_gc along with atomic writes - avoid needless data migration in GC" * tag 'f2fs-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: f2fs: stop GC when the victim becomes fully valid f2fs: expose main_blkaddr in sysfs f2fs: choose hardlimit when softlimit is larger than hardlimit in f2fs_statfs_project() f2fs: Fix deadlock in f2fs_gc() context during atomic files handling f2fs: show f2fs instance in printk_ratelimited f2fs: fix potential overflow f2fs: fix to update dir's i_pino during cross_rename f2fs: support aligned pinned file f2fs: avoid kernel panic on corruption test f2fs: fix wrong description in document f2fs: cache global IPU bio f2fs: fix to avoid memory leakage in f2fs_listxattr f2fs: check total_segments from devices in raw_super f2fs: update multi-dev metadata in resize_fs f2fs: mark recovery flag correctly in read_raw_super_block() f2fs: fix to update time in lazytime mode |
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Linus Torvalds
|
4a55d362ff |
AFS development
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Merge tag 'afs-next-20191121' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull AFS updates from David Howells:
"Minor cleanups and fix:
- Minor fix to make some debugging statements display information
from the correct iov_iter.
- Rename some members and variables to make things more obvious or
consistent.
- Provide a helper to wrap increments of the usage count on the
afs_read struct.
- Use scnprintf() to print into a stack buffer rather than sprintf().
- Remove some set but unused variables"
* tag 'afs-next-20191121' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
afs: Remove set but not used variable 'ret'
afs: Remove set but not used variables 'before', 'after'
afs: xattr: use scnprintf
afs: Introduce an afs_get_read() refcount helper
afs: Rename desc -> req in afs_fetch_data()
afs: Switch the naming of call->iter and call->_iter
afs: Use call->_iter not &call->iter in debugging statements
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Linus Torvalds
|
50b8b3f85a |
This merge window saw the the following new featuers added to ext4:
* Direct I/O via iomap (required the iomap-for-next branch from Darrick
as a prereq).
* Support for using dioread-nolock where the block size < page size.
* Support for encryption for file systems where the block size < page size.
* Rework of journal credits handling so a revoke-heavy workload will
not cause the journal to run out of space.
* Replace bit-spinlocks with spinlocks in jbd2
Also included were some bug fixes and cleanups, mostly to clean up
corner cases from fuzzed file systems and error path handling.
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"This merge window saw the the following new featuers added to ext4:
- Direct I/O via iomap (required the iomap-for-next branch from
Darrick as a prereq).
- Support for using dioread-nolock where the block size < page size.
- Support for encryption for file systems where the block size < page
size.
- Rework of journal credits handling so a revoke-heavy workload will
not cause the journal to run out of space.
- Replace bit-spinlocks with spinlocks in jbd2
Also included were some bug fixes and cleanups, mostly to clean up
corner cases from fuzzed file systems and error path handling"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (59 commits)
ext4: work around deleting a file with i_nlink == 0 safely
ext4: add more paranoia checking in ext4_expand_extra_isize handling
jbd2: make jbd2_handle_buffer_credits() handle reserved handles
ext4: fix a bug in ext4_wait_for_tail_page_commit
ext4: bio_alloc with __GFP_DIRECT_RECLAIM never fails
ext4: code cleanup for get_next_id
ext4: fix leak of quota reservations
ext4: remove unused variable warning in parse_options()
ext4: Enable encryption for subpage-sized blocks
fs/buffer.c: support fscrypt in block_read_full_page()
ext4: Add error handling for io_end_vec struct allocation
jbd2: Fine tune estimate of necessary descriptor blocks
jbd2: Provide trace event for handle restarts
ext4: Reserve revoke credits for freed blocks
jbd2: Make credit checking more strict
jbd2: Rename h_buffer_credits to h_total_credits
jbd2: Reserve space for revoke descriptor blocks
jbd2: Drop jbd2_space_needed()
jbd2: Account descriptor blocks into t_outstanding_credits
jbd2: Factor out common parts of stopping and restarting a handle
...
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Linus Torvalds
|
f112a2fd1f |
New code for 5.5:
- Fix another place in the splice code where a pipe could ask a filesystem for a longer read than the pipe actually has free buffer space. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEUzaAxoMeQq6m2jMV+H93GTRKtOsFAl3XKBsACgkQ+H93GTRK tOubhg/9FhWIX+Ijj0a1MQj3QDv0YbLPv2uTVLYyRK+1X5Xwc7u0OmmbWYrQQQUJ 6aOaictBXXTIJtKqVcmXBXboUskKygnWKlVssKAI/BYR9ope/EMrMV5+4bz0mKt/ ufcDXRiJX2hbL8GicmJxK/qmp3bEAG0n/e0+0LcuYynatYXJQ19eOUeritVZ3EYA Vhbgvrtuq8ws9SqvJ4Dm7fLsPT0AOHocor34tXS+gRq8KYIA2Ru7uDyE2uJJujF7 qAlmZVvun+RcSBG0mYdk6GDgLGibn76t+d0xnqd/OzSeh+6bHYc1ni6FJD8kjVzf nGHFJfbEOCzDEees9ESBkgnH1TiCN4wCs7JQ4BictAPotBCtkbcNLvrO+b77zgwp DAu6uE/DiRmIu9zqfy8TyH1E78pW7qTpI9yFDUQLaItvAbbqYIaiRLr4Hjd2Hf3E MLYOSGZkKn/xZaqedk+rGwYJJmmvzCZblfrQ3hCtLGjmNQgfTRXidlgyicl1Ta12 iG9UkCFdbkZmdW9zWyYmZrfxLB6QzOZpgbdUwyMk0Rfc1sKJKYoNE+hkt8fjmS71 0hBPYSopDsYkGEH1719Nsfvyj0101McFklvEqS2hU9/rLyaF0Mdq5catVbzyBPhk RwnvXdFd/sFgbR+1xLiEm51aXAe/kmveNNQBqZkuBgXITt7oh7Q= =ripU -----END PGP SIGNATURE----- Merge tag 'vfs-5.5-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux Pull splice fix from Darrick Wong: "Fix another place in the splice code where a pipe could ask a filesystem for a longer read than the pipe actually has free buffer space" * tag 'vfs-5.5-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: splice: only read in as much information as there is pipe buffer space |
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Linus Torvalds
|
3b266a52d8 |
New code for 5.5:
- Make iomap_dio_rw callers explicitly tell us if they want us to wait
- Port the xfs writeback code to iomap to complete the buffered io
library functions
- Refactor the unshare code to share common pieces
- Add support for performing copy on write with buffered writes
- Other minor fixes
- Fix unchecked return in iomap_bmap
- Fix a type casting bug in a ternary statement in iomap_dio_bio_actor
- Improve tracepoints for easier diagnostic ability
- Fix pipe page leakage in directio reads
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Merge tag 'iomap-5.5-merge-11' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull iomap updates from Darrick Wong:
"In this release, we hoisted as much of XFS' writeback code into iomap
as was practicable, refactored the unshare file data function, added
the ability to perform buffered io copy on write, and tweaked various
parts of the directio implementation as needed to port ext4's directio
code (that will be a separate pull).
Summary:
- Make iomap_dio_rw callers explicitly tell us if they want us to
wait
- Port the xfs writeback code to iomap to complete the buffered io
library functions
- Refactor the unshare code to share common pieces
- Add support for performing copy on write with buffered writes
- Other minor fixes
- Fix unchecked return in iomap_bmap
- Fix a type casting bug in a ternary statement in
iomap_dio_bio_actor
- Improve tracepoints for easier diagnostic ability
- Fix pipe page leakage in directio reads"
* tag 'iomap-5.5-merge-11' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (31 commits)
iomap: Fix pipe page leakage during splicing
iomap: trace iomap_appply results
iomap: fix return value of iomap_dio_bio_actor on 32bit systems
iomap: iomap_bmap should check iomap_apply return value
iomap: Fix overflow in iomap_page_mkwrite
fs/iomap: remove redundant check in iomap_dio_rw()
iomap: use a srcmap for a read-modify-write I/O
iomap: renumber IOMAP_HOLE to 0
iomap: use write_begin to read pages to unshare
iomap: move the zeroing case out of iomap_read_page_sync
iomap: ignore non-shared or non-data blocks in xfs_file_dirty
iomap: always use AOP_FLAG_NOFS in iomap_write_begin
iomap: remove the unused iomap argument to __iomap_write_end
iomap: better document the IOMAP_F_* flags
iomap: enhance writeback error message
iomap: pass a struct page to iomap_finish_page_writeback
iomap: cleanup iomap_ioend_compare
iomap: move struct iomap_page out of iomap.h
iomap: warn on inline maps in iomap_writepage_map
iomap: lift the xfs writeback code to iomap
...
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Jens Axboe
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aa4c396775 |
io_uring: fix missing kmap() declaration on powerpc
Christophe reports that current master fails building on powerpc with
this error:
CC fs/io_uring.o
fs/io_uring.c: In function ‘loop_rw_iter’:
fs/io_uring.c:1628:21: error: implicit declaration of function ‘kmap’
[-Werror=implicit-function-declaration]
iovec.iov_base = kmap(iter->bvec->bv_page)
^
fs/io_uring.c:1628:19: warning: assignment makes pointer from integer
without a cast [-Wint-conversion]
iovec.iov_base = kmap(iter->bvec->bv_page)
^
fs/io_uring.c:1643:4: error: implicit declaration of function ‘kunmap’
[-Werror=implicit-function-declaration]
kunmap(iter->bvec->bv_page);
^
which is caused by a missing highmem.h include. Fix it by including
it.
Fixes:
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Joel Stanley
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6e78c01fde |
Revert "jffs2: Fix possible null-pointer dereferences in jffs2_add_frag_to_fragtree()"
This reverts commit |
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Linus Torvalds
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05bd375b6b |
for-5.5/io_uring-post-20191128
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Merge tag 'for-5.5/io_uring-post-20191128' of git://git.kernel.dk/linux-block
Pull more io_uring updates from Jens Axboe:
"As mentioned in the first pull request, there was a later batch as
well. This contains fixes to the stuff that already went in, cleanups,
and a few later additions. In particular, this contains:
- Cleanups/fixes/unification of the submission and completion path
(Pavel,me)
- Linked timeouts improvements (Pavel,me)
- Error path fixes (me)
- Fix lookup window where cancellations wouldn't work (me)
- Improve DRAIN support (Pavel)
- Fix backlog flushing -EBUSY on submit (me)
- Add support for connect(2) (me)
- Fix for non-iter based fixed IO (Pavel)
- creds inheritance for async workers (me)
- Disable cmsg/ancillary data for sendmsg/recvmsg (me)
- Shrink io_kiocb to 3 cachelines (me)
- NUMA fix for io-wq (Jann)"
* tag 'for-5.5/io_uring-post-20191128' of git://git.kernel.dk/linux-block: (42 commits)
io_uring: make poll->wait dynamically allocated
io-wq: shrink io_wq_work a bit
io-wq: fix handling of NUMA node IDs
io_uring: use kzalloc instead of kcalloc for single-element allocations
io_uring: cleanup io_import_fixed()
io_uring: inline struct sqe_submit
io_uring: store timeout's sqe->off in proper place
net: disallow ancillary data for __sys_{send,recv}msg_file()
net: separate out the msghdr copy from ___sys_{send,recv}msg()
io_uring: remove superfluous check for sqe->off in io_accept()
io_uring: async workers should inherit the user creds
io-wq: have io_wq_create() take a 'data' argument
io_uring: fix dead-hung for non-iter fixed rw
io_uring: add support for IORING_OP_CONNECT
net: add __sys_connect_file() helper
io_uring: only return -EBUSY for submit on non-flushed backlog
io_uring: only !null ptr to io_issue_sqe()
io_uring: simplify io_req_link_next()
io_uring: pass only !null to io_req_find_next()
io_uring: remove io_free_req_find_next()
...
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Roman Penyaev
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6c5c240e41 |
io_uring: add mapping support for NOMMU archs
That is a bit weird scenario but I find it interesting to run fio loads using LKL linux, where MMU is disabled. Probably other real archs which run uClinux can also benefit from this patch. Signed-off-by: Roman Penyaev <rpenyaev@suse.de> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Linus Torvalds
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9a3d7fd275 |
Driver core patches for 5.5-rc1
Here is the "big" set of driver core patches for 5.5-rc1 There's a few minor cleanups and fixes in here, but the majority of the patches in here fall into two buckets: - debugfs api cleanups and fixes - driver core device link support for boot dependancy issues The debugfs api cleanups are working to slowly refactor the debugfs apis so that it is even harder to use incorrectly. That work has been happening for the past few kernel releases and will continue over time, it's a long-term project/goal The driver core device link support missed 5.4 by just a bit, so it's been sitting and baking for many months now. It's from Saravana Kannan to help resolve the problems that DT-based systems have at boot time with dependancy graphs and kernel modules. Turns out that no one has actually tried to build a generic arm64 kernel with loads of modules and have it "just work" for a variety of platforms (like a distro kernel) The big problem turned out to be a lack of depandancy information between different areas of DT entries, and the work here resolves that problem and now allows devices to boot properly, and quicker than a monolith kernel. All of these patches have been in linux-next for a long time with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXd6m6Q8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+yntJQCcCqg6RQ7LTdHuZv1ETeefXlsfk00An1Jtean6 42bWGx52bGFvAcpjWy8R =P7hq -----END PGP SIGNATURE----- Merge tag 'driver-core-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the "big" set of driver core patches for 5.5-rc1 There's a few minor cleanups and fixes in here, but the majority of the patches in here fall into two buckets: - debugfs api cleanups and fixes - driver core device link support for boot dependancy issues The debugfs api cleanups are working to slowly refactor the debugfs apis so that it is even harder to use incorrectly. That work has been happening for the past few kernel releases and will continue over time, it's a long-term project/goal The driver core device link support missed 5.4 by just a bit, so it's been sitting and baking for many months now. It's from Saravana Kannan to help resolve the problems that DT-based systems have at boot time with dependancy graphs and kernel modules. Turns out that no one has actually tried to build a generic arm64 kernel with loads of modules and have it "just work" for a variety of platforms (like a distro kernel). The big problem turned out to be a lack of dependency information between different areas of DT entries, and the work here resolves that problem and now allows devices to boot properly, and quicker than a monolith kernel. All of these patches have been in linux-next for a long time with no reported issues" * tag 'driver-core-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (68 commits) tracing: Remove unnecessary DEBUG_FS dependency of: property: Add device link support for interrupt-parent, dmas and -gpio(s) debugfs: Fix !DEBUG_FS debugfs_create_automount of: property: Add device link support for "iommu-map" of: property: Fix the semantics of of_is_ancestor_of() i2c: of: Populate fwnode in of_i2c_get_board_info() drivers: base: Fix Kconfig indentation firmware_loader: Fix labels with comma for builtin firmware driver core: Allow device link operations inside sync_state() driver core: platform: Declare ret variable only once cpu-topology: declare parse_acpi_topology in <linux/arch_topology.h> crypto: hisilicon: no need to check return value of debugfs_create functions driver core: platform: use the correct callback type for bus_find_device firmware_class: make firmware caching configurable driver core: Clarify documentation for fwnode_operations.add_links() mailbox: tegra: Fix superfluous IRQ error message net: caif: Fix debugfs on 64-bit platforms mac80211: Use debugfs_create_xul() helper media: c8sectpfe: no need to check return value of debugfs_create functions of: property: Add device link support for iommus, mboxes and io-channels ... |
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Dan Carpenter via samba-technical
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68464b88cc |
CIFS: fix a white space issue in cifs_get_inode_info()
We accidentally messed up the indenting on this if statement.
Fixes: 16c696a6c300 ("CIFS: refactor cifs_get_inode_info()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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Darrick J. Wong
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8feb4732ff |
xfs: allow parent directory scans to be interrupted with fatal signals
Allow a fatal signal to interrupt us when we're scanning a directory to verify a parent pointer. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com> |
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Linus Torvalds
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168829ad09 |
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"The main changes in this cycle were:
- A comprehensive rewrite of the robust/PI futex code's exit handling
to fix various exit races. (Thomas Gleixner et al)
- Rework the generic REFCOUNT_FULL implementation using
atomic_fetch_* operations so that the performance impact of the
cmpxchg() loops is mitigated for common refcount operations.
With these performance improvements the generic implementation of
refcount_t should be good enough for everybody - and this got
confirmed by performance testing, so remove ARCH_HAS_REFCOUNT and
REFCOUNT_FULL entirely, leaving the generic implementation enabled
unconditionally. (Will Deacon)
- Other misc changes, fixes, cleanups"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
lkdtm: Remove references to CONFIG_REFCOUNT_FULL
locking/refcount: Remove unused 'refcount_error_report()' function
locking/refcount: Consolidate implementations of refcount_t
locking/refcount: Consolidate REFCOUNT_{MAX,SATURATED} definitions
locking/refcount: Move saturation warnings out of line
locking/refcount: Improve performance of generic REFCOUNT_FULL code
locking/refcount: Move the bulk of the REFCOUNT_FULL implementation into the <linux/refcount.h> header
locking/refcount: Remove unused refcount_*_checked() variants
locking/refcount: Ensure integer operands are treated as signed
locking/refcount: Define constants for saturation and max refcount values
futex: Prevent exit livelock
futex: Provide distinct return value when owner is exiting
futex: Add mutex around futex exit
futex: Provide state handling for exec() as well
futex: Sanitize exit state handling
futex: Mark the begin of futex exit explicitly
futex: Set task::futex_state to DEAD right after handling futex exit
futex: Split futex_mm_release() for exit/exec
exit/exec: Seperate mm_release()
futex: Replace PF_EXITPIDONE with a state
...
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Linus Torvalds
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1ae78780ed |
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
"The main changes in this cycle were:
- Dynamic tick (nohz) updates, perhaps most notably changes to force
the tick on when needed due to lengthy in-kernel execution on CPUs
on which RCU is waiting.
- Linux-kernel memory consistency model updates.
- Replace rcu_swap_protected() with rcu_prepace_pointer().
- Torture-test updates.
- Documentation updates.
- Miscellaneous fixes"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits)
security/safesetid: Replace rcu_swap_protected() with rcu_replace_pointer()
net/sched: Replace rcu_swap_protected() with rcu_replace_pointer()
net/netfilter: Replace rcu_swap_protected() with rcu_replace_pointer()
net/core: Replace rcu_swap_protected() with rcu_replace_pointer()
bpf/cgroup: Replace rcu_swap_protected() with rcu_replace_pointer()
fs/afs: Replace rcu_swap_protected() with rcu_replace_pointer()
drivers/scsi: Replace rcu_swap_protected() with rcu_replace_pointer()
drm/i915: Replace rcu_swap_protected() with rcu_replace_pointer()
x86/kvm/pmu: Replace rcu_swap_protected() with rcu_replace_pointer()
rcu: Upgrade rcu_swap_protected() to rcu_replace_pointer()
rcu: Suppress levelspread uninitialized messages
rcu: Fix uninitialized variable in nocb_gp_wait()
rcu: Update descriptions for rcu_future_grace_period tracepoint
rcu: Update descriptions for rcu_nocb_wake tracepoint
rcu: Remove obsolete descriptions for rcu_barrier tracepoint
rcu: Ensure that ->rcu_urgent_qs is set before resched IPI
workqueue: Convert for_each_wq to use built-in list check
rcu: Several rcu_segcblist functions can be static
rcu: Remove unused function hlist_bl_del_init_rcu()
Documentation: Rename rcu_node_context_switch() to rcu_note_context_switch()
...
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Linus Torvalds
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77a05940ee |
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar: "The biggest changes in this cycle were: - Make kcpustat vtime aware (Frederic Weisbecker) - Rework the CFS load_balance() logic (Vincent Guittot) - Misc cleanups, smaller enhancements, fixes. The load-balancing rework is the most intrusive change: it replaces the old heuristics that have become less meaningful after the introduction of the PELT metrics, with a grounds-up load-balancing algorithm. As such it's not really an iterative series, but replaces the old load-balancing logic with the new one. We hope there are no performance regressions left - but statistically it's highly probable that there *is* going to be some workload that is hurting from these chnages. If so then we'd prefer to have a look at that workload and fix its scheduling, instead of reverting the changes" * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits) rackmeter: Use vtime aware kcpustat accessor leds: Use all-in-one vtime aware kcpustat accessor cpufreq: Use vtime aware kcpustat accessors for user time procfs: Use all-in-one vtime aware kcpustat accessor sched/vtime: Bring up complete kcpustat accessor sched/cputime: Support other fields on kcpustat_field() sched/cpufreq: Move the cfs_rq_util_change() call to cpufreq_update_util() sched/fair: Add comments for group_type and balancing at SD_NUMA level sched/fair: Fix rework of find_idlest_group() sched/uclamp: Fix overzealous type replacement sched/Kconfig: Fix spelling mistake in user-visible help text sched/core: Further clarify sched_class::set_next_task() sched/fair: Use mul_u32_u32() sched/core: Simplify sched_class::pick_next_task() sched/core: Optimize pick_next_task() sched/core: Make pick_next_task_idle() more consistent sched/fair: Better document newidle_balance() leds: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM cpufreq: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM procfs: Use vtime aware kcpustat accessor to fetch CPUTIME_SYSTEM ... |
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Jens Axboe
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e944475e69 |
io_uring: make poll->wait dynamically allocated
In the quest to bring io_kiocb down to 3 cachelines, this one does the trick. Make the wait_queue_entry for the poll command come out of kmalloc instead of embedding it in struct io_poll_iocb, as the latter is the largest member of io_kiocb. Once we trim this down a bit, we're back at a healthy 192 bytes for struct io_kiocb. Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Jens Axboe
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6206f0e180 |
io-wq: shrink io_wq_work a bit
Currently we're using 40 bytes for the io_wq_work structure, and 16 of those is the doubly link list node. We don't need doubly linked lists, we always add to tail to keep things ordered, and any other use case is list traversal with deletion. For the deletion case, we can easily support any node deletion by keeping track of the previous entry. This shrinks io_wq_work to 32 bytes, and subsequently io_kiock from io_uring to 216 to 208 bytes. Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Jann Horn
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3fc50ab559 |
io-wq: fix handling of NUMA node IDs
There are several things that can go wrong in the current code on NUMA systems, especially if not all nodes are online all the time: - If the identifiers of the online nodes do not form a single contiguous block starting at zero, wq->wqes will be too small, and OOB memory accesses will occur e.g. in the loop in io_wq_create(). - If a node comes online between the call to num_online_nodes() and the for_each_node() loop in io_wq_create(), an OOB write will occur. - If a node comes online between io_wq_create() and io_wq_enqueue(), a lookup is performed for an element that doesn't exist, and an OOB read will probably occur. Fix it by: - using nr_node_ids instead of num_online_nodes() for the allocation size; nr_node_ids is calculated by setup_nr_node_ids() to be bigger than the highest node ID that could possibly come online at some point, even if those nodes' identifiers are not a contiguous block - creating workers for all possible CPUs, not just all online ones This is basically what the normal workqueue code also does, as far as I can tell. Signed-off-by: Jann Horn <jannh@google.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Jann Horn
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ad6e005ca6 |
io_uring: use kzalloc instead of kcalloc for single-element allocations
These allocations are single-element allocations, so don't use the array allocation wrapper for them. Signed-off-by: Jann Horn <jannh@google.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Pavel Begunkov
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7d00916555 |
io_uring: cleanup io_import_fixed()
Clean io_import_fixed() call site and make it return proper type. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Pavel Begunkov
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cf6fd4bd55 |
io_uring: inline struct sqe_submit
There is no point left in keeping struct sqe_submit. Inline it into struct io_kiocb, so any req->submit.field is now just req->field - moves initialisation of ring_file into io_get_req() - removes duplicated req->sequence. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Pavel Begunkov
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cc42e0ac17 |
io_uring: store timeout's sqe->off in proper place
Timeouts' sequence offset (i.e. sqe->off) is stored in req->submit.sequence under a false name. Keep it in timeout.data instead. The unused space for sequence will be reclaimed in the following patches. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Linus Torvalds
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2be7d348fe |
Revert "vfs: properly and reliably lock f_pos in fdget_pos()"
This reverts commit
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Linus Torvalds
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436b2a8039 |
Printk changes for 5.5
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Linus Torvalds
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1b96a41b42 |
Merge branch 'for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:
"There are several notable changes here:
- Single thread migrating itself has been optimized so that it
doesn't need threadgroup rwsem anymore.
- Freezer optimization to avoid unnecessary frozen state changes.
- cgroup ID unification so that cgroup fs ino is the only unique ID
used for the cgroup and can be used to directly look up live
cgroups through filehandle interface on 64bit ino archs. On 32bit
archs, cgroup fs ino is still the only ID in use but it is only
unique when combined with gen.
- selftest and other changes"
* 'for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (24 commits)
writeback: fix -Wformat compilation warnings
docs: cgroup: mm: Fix spelling of "list"
cgroup: fix incorrect WARN_ON_ONCE() in cgroup_setup_root()
cgroup: use cgrp->kn->id as the cgroup ID
kernfs: use 64bit inos if ino_t is 64bit
kernfs: implement custom exportfs ops and fid type
kernfs: combine ino/id lookup functions into kernfs_find_and_get_node_by_id()
kernfs: convert kernfs_node->id from union kernfs_node_id to u64
kernfs: kernfs_find_and_get_node_by_ino() should only look up activated nodes
kernfs: use dumber locking for kernfs_find_and_get_node_by_ino()
netprio: use css ID instead of cgroup ID
writeback: use ino_t for inodes in tracepoints
kernfs: fix ino wrap-around detection
kselftests: cgroup: Avoid the reuse of fd after it is deallocated
cgroup: freezer: don't change task and cgroups status unnecessarily
cgroup: use cgroup->last_bstat instead of cgroup->bstat_pending for consistency
cgroup: remove cgroup_enable_task_cg_lists() optimization
cgroup: pids: use atomic64_t for pids->limit
selftests: cgroup: Run test_core under interfering stress
selftests: cgroup: Add task migration tests
...
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Hrvoje Zeba
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8042d6ce8c |
io_uring: remove superfluous check for sqe->off in io_accept()
This field contains a pointer to addrlen and checking to see if it's set
returns -EINVAL if the caller sets addr & addrlen pointers.
Fixes:
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