#
360823a0 |
| 17-Feb-2025 |
Andrew Jeffery <andrew@codeconstruct.com.au> |
Merge tag 'v6.6.78' into for/openbmc/dev-6.6
This is the 6.6.78 stable release
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Merge tag 'v6.6.78' into for/openbmc/dev-6.6
This is the 6.6.78 stable release
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Revision tags: v6.6.78, v6.6.77 |
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#
644636ee |
| 10-Feb-2025 |
Pavel Begunkov <asml.silence@gmail.com> |
io_uring/rw: commit provided buffer state on async
When we get -EIOCBQUEUED, we need to ensure that the buffer is consumed from the provided buffer ring, which can be done with io_kbuf_recycle() + R
io_uring/rw: commit provided buffer state on async
When we get -EIOCBQUEUED, we need to ensure that the buffer is consumed from the provided buffer ring, which can be done with io_kbuf_recycle() + REQ_F_PARTIAL_IO.
Reported-by: Muhammad Ramdhan <ramdhan@starlabs.sg> Reported-by: Bing-Jhong Billy Jheng <billy@starlabs.sg> Reported-by: Jacob Soo <jacob.soo@starlabs.sg> Fixes: c7fb19428d67d ("io_uring: add support for ring mapped supplied buffers") Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Revision tags: v6.6.76, v6.6.75, v6.6.74, v6.6.73, v6.6.72, v6.6.71, v6.12.9, v6.6.70 |
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#
55e43d6a |
| 05-Jan-2025 |
Andrew Jeffery <andrew@codeconstruct.com.au> |
Merge tag 'v6.6.68' into for/openbmc/dev-6.6
This is the 6.6.68 stable release
|
Revision tags: v6.12.8, v6.6.69, v6.12.7, v6.6.68, v6.12.6, v6.6.67, v6.12.5, v6.6.66, v6.6.65, v6.12.4, v6.6.64, v6.12.3, v6.12.2, v6.6.63, v6.12.1, v6.12, v6.6.62, v6.6.61, v6.6.60, v6.6.59, v6.6.58, v6.6.57, v6.6.56, v6.6.55, v6.6.54, v6.6.53, v6.6.52, v6.6.51, v6.6.50, v6.6.49, v6.6.48, v6.6.47, v6.6.46, v6.6.45, v6.6.44, v6.6.43, v6.6.42, v6.6.41, v6.6.40, v6.6.39, v6.6.38, v6.6.37, v6.6.36, v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30, v6.6.29, v6.6.28, v6.6.27, v6.6.26, v6.6.25, v6.6.24, v6.6.23 |
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#
4cba4412 |
| 18-Mar-2024 |
Pavel Begunkov <asml.silence@gmail.com> |
io_uring/rw: avoid punting to io-wq directly
Commit 6e6b8c62120a22acd8cb759304e4cd2e3215d488 upstream.
kiocb_done() should care to specifically redirecting requests to io-wq. Remove the hopping to
io_uring/rw: avoid punting to io-wq directly
Commit 6e6b8c62120a22acd8cb759304e4cd2e3215d488 upstream.
kiocb_done() should care to specifically redirecting requests to io-wq. Remove the hopping to tw to then queue an io-wq, return -EAGAIN and let the core code io_uring handle offloading.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Tested-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/413564e550fe23744a970e1783dfa566291b0e6f.1710799188.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk> (cherry picked from commit 6e6b8c62120a22acd8cb759304e4cd2e3215d488) Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
41928840 |
| 10-Sep-2024 |
Jens Axboe <axboe@kernel.dk> |
io_uring/rw: treat -EOPNOTSUPP for IOCB_NOWAIT like -EAGAIN
Commit c0a9d496e0fece67db777bd48550376cf2960c47 upstream.
Some file systems, ocfs2 in this case, will return -EOPNOTSUPP for an IOCB_NOWA
io_uring/rw: treat -EOPNOTSUPP for IOCB_NOWAIT like -EAGAIN
Commit c0a9d496e0fece67db777bd48550376cf2960c47 upstream.
Some file systems, ocfs2 in this case, will return -EOPNOTSUPP for an IOCB_NOWAIT read/write attempt. While this can be argued to be correct, the usual return value for something that requires blocking issue is -EAGAIN.
A refactoring io_uring commit dropped calling kiocb_done() for negative return values, which is otherwise where we already do that transformation. To ensure we catch it in both spots, check it in __io_read() itself as well.
Reported-by: Robert Sander <r.sander@heinlein-support.de> Link: https://fosstodon.org/@gurubert@mastodon.gurubert.de/113112431889638440 Cc: stable@vger.kernel.org Fixes: a08d195b586a ("io_uring/rw: split io_read() into a helper") Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Revision tags: v6.6.16, v6.6.15, v6.6.14, v6.6.13, v6.6.12, v6.6.11, v6.6.10, v6.6.9, v6.6.8, v6.6.7, v6.6.6, v6.6.5, v6.6.4, v6.6.3, v6.6.2, v6.5.11, v6.6.1, v6.5.10, v6.6, v6.5.9, v6.5.8, v6.5.7, v6.5.6, v6.5.5, v6.5.4, v6.5.3 |
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#
6c27fc6a |
| 11-Sep-2023 |
Jens Axboe <axboe@kernel.dk> |
io_uring/rw: split io_read() into a helper
Commit a08d195b586a217d76b42062f88f375a3eedda4d upstream.
Add __io_read() which does the grunt of the work, leaving the completion side to the new io_read
io_uring/rw: split io_read() into a helper
Commit a08d195b586a217d76b42062f88f375a3eedda4d upstream.
Add __io_read() which does the grunt of the work, leaving the completion side to the new io_read(). No functional changes in this patch.
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de> Signed-off-by: Jens Axboe <axboe@kernel.dk> (cherry picked from commit a08d195b586a217d76b42062f88f375a3eedda4d) Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
5f8b7d4b |
| 10-Nov-2024 |
Andrew Jeffery <andrew@codeconstruct.com.au> |
Merge tag 'v6.6.60' into for/openbmc/dev-6.6
This is the 6.6.60 stable release
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#
003d2996 |
| 31-Oct-2024 |
Jens Axboe <axboe@kernel.dk> |
io_uring/rw: fix missing NOWAIT check for O_DIRECT start write
[ Upstream commit 1d60d74e852647255bd8e76f5a22dc42531e4389 ]
When io_uring starts a write, it'll call kiocb_start_write() to bump the
io_uring/rw: fix missing NOWAIT check for O_DIRECT start write
[ Upstream commit 1d60d74e852647255bd8e76f5a22dc42531e4389 ]
When io_uring starts a write, it'll call kiocb_start_write() to bump the super block rwsem, preventing any freezes from happening while that write is in-flight. The freeze side will grab that rwsem for writing, excluding any new writers from happening and waiting for existing writes to finish. But io_uring unconditionally uses kiocb_start_write(), which will block if someone is currently attempting to freeze the mount point. This causes a deadlock where freeze is waiting for previous writes to complete, but the previous writes cannot complete, as the task that is supposed to complete them is blocked waiting on starting a new write. This results in the following stuck trace showing that dependency with the write blocked starting a new write:
task:fio state:D stack:0 pid:886 tgid:886 ppid:876 Call trace: __switch_to+0x1d8/0x348 __schedule+0x8e8/0x2248 schedule+0x110/0x3f0 percpu_rwsem_wait+0x1e8/0x3f8 __percpu_down_read+0xe8/0x500 io_write+0xbb8/0xff8 io_issue_sqe+0x10c/0x1020 io_submit_sqes+0x614/0x2110 __arm64_sys_io_uring_enter+0x524/0x1038 invoke_syscall+0x74/0x268 el0_svc_common.constprop.0+0x160/0x238 do_el0_svc+0x44/0x60 el0_svc+0x44/0xb0 el0t_64_sync_handler+0x118/0x128 el0t_64_sync+0x168/0x170 INFO: task fsfreeze:7364 blocked for more than 15 seconds. Not tainted 6.12.0-rc5-00063-g76aaf945701c #7963
with the attempting freezer stuck trying to grab the rwsem:
task:fsfreeze state:D stack:0 pid:7364 tgid:7364 ppid:995 Call trace: __switch_to+0x1d8/0x348 __schedule+0x8e8/0x2248 schedule+0x110/0x3f0 percpu_down_write+0x2b0/0x680 freeze_super+0x248/0x8a8 do_vfs_ioctl+0x149c/0x1b18 __arm64_sys_ioctl+0xd0/0x1a0 invoke_syscall+0x74/0x268 el0_svc_common.constprop.0+0x160/0x238 do_el0_svc+0x44/0x60 el0_svc+0x44/0xb0 el0t_64_sync_handler+0x118/0x128 el0t_64_sync+0x168/0x170
Fix this by having the io_uring side honor IOCB_NOWAIT, and only attempt a blocking grab of the super block rwsem if it isn't set. For normal issue where IOCB_NOWAIT would always be set, this returns -EAGAIN which will have io_uring core issue a blocking attempt of the write. That will in turn also get completions run, ensuring forward progress.
Since freezing requires CAP_SYS_ADMIN in the first place, this isn't something that can be triggered by a regular user.
Cc: stable@vger.kernel.org # 5.10+ Reported-by: Peter Mann <peter.mann@sh.cz> Link: https://lore.kernel.org/io-uring/38c94aec-81c9-4f62-b44e-1d87f5597644@sh.cz Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>
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#
1188f7f1 |
| 10-Feb-2024 |
Andrew Jeffery <andrew@codeconstruct.com.au> |
Merge tag 'v6.6.14' into dev-6.6
This is the 6.6.14 stable release
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#
c239b77e |
| 21-Dec-2023 |
Jens Axboe <axboe@kernel.dk> |
io_uring/rw: ensure io->bytes_done is always initialized
commit 0a535eddbe0dc1de4386046ab849f08aeb2f8faf upstream.
If IOSQE_ASYNC is set and we fail importing an iovec for a readv or writev request
io_uring/rw: ensure io->bytes_done is always initialized
commit 0a535eddbe0dc1de4386046ab849f08aeb2f8faf upstream.
If IOSQE_ASYNC is set and we fail importing an iovec for a readv or writev request, then we leave ->bytes_done uninitialized and hence the eventual failure CQE posted can potentially have a random res value rather than the expected -EINVAL.
Setup ->bytes_done before potentially failing, so we have a consistent value if we fail the request early.
Cc: stable@vger.kernel.org Reported-by: xingwei lee <xrivendell7@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
d1b0949f |
| 27-Oct-2023 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc filesystem fixes from Al Viro: "Assorted fixes all over the place: literally nothing in common, could ha
Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc filesystem fixes from Al Viro: "Assorted fixes all over the place: literally nothing in common, could have been three separate pull requests.
All are simple regression fixes, but not for anything from this cycle"
* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: ceph_wait_on_conflict_unlink(): grab reference before dropping ->d_lock io_uring: kiocb_done() should *not* trust ->ki_pos if ->{read,write}_iter() failed sparc32: fix a braino in fault handling in csum_and_copy_..._user()
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Revision tags: v6.5.2, v6.1.51, v6.5.1, v6.1.50 |
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#
1939316b |
| 28-Aug-2023 |
Al Viro <viro@zeniv.linux.org.uk> |
io_uring: kiocb_done() should *not* trust ->ki_pos if ->{read,write}_iter() failed
->ki_pos value is unreliable in such cases. For an obvious example, consider O_DSYNC write - we feed the data to p
io_uring: kiocb_done() should *not* trust ->ki_pos if ->{read,write}_iter() failed
->ki_pos value is unreliable in such cases. For an obvious example, consider O_DSYNC write - we feed the data to page cache and start IO, then we make sure it's completed. Update of ->ki_pos is dealt with by the first part; failure in the second ends up with negative value returned _and_ ->ki_pos left advanced as if sync had been successful. In the same situation write(2) does not advance the file position at all.
Reviewed-by: Christian Brauner <brauner@kernel.org> Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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#
56567a20 |
| 27-Oct-2023 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'io_uring-6.6-2023-10-27' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe: "Fix for an issue reported where reading fdinfo could find a NULL thread as we didn't properl
Merge tag 'io_uring-6.6-2023-10-27' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe: "Fix for an issue reported where reading fdinfo could find a NULL thread as we didn't properly synchronize, and then a disable for the IOCB_DIO_CALLER_COMP optimization as a recent reported highlighted how that could lead to deadlocks if the task issued async O_DIRECT writes and then proceeded to do sync fallocate() calls"
* tag 'io_uring-6.6-2023-10-27' of git://git.kernel.dk/linux: io_uring/rw: disable IOCB_DIO_CALLER_COMP io_uring/fdinfo: lock SQ thread while retrieving thread cpu/pid
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#
838b35bb |
| 24-Oct-2023 |
Jens Axboe <axboe@kernel.dk> |
io_uring/rw: disable IOCB_DIO_CALLER_COMP
If an application does O_DIRECT writes with io_uring and the file system supports IOCB_DIO_CALLER_COMP, then completions of the dio write side is done from
io_uring/rw: disable IOCB_DIO_CALLER_COMP
If an application does O_DIRECT writes with io_uring and the file system supports IOCB_DIO_CALLER_COMP, then completions of the dio write side is done from the task_work that will post the completion event for said write as well.
Whenever a dio write is done against a file, the inode i_dio_count is elevated. This enables other callers to use inode_dio_wait() to wait for previous writes to complete. If we defer the full dio completion to task_work, we are dependent on that task_work being run before the inode i_dio_count can be decremented.
If the same task that issues io_uring dio writes with IOCB_DIO_CALLER_COMP performs a synchronous system call that calls inode_dio_wait(), then we can deadlock as we're blocked sleeping on the event to become true, but not processing the completions that will result in the inode i_dio_count being decremented.
Until we can guarantee that this is the case, then disable the deferred caller completions.
Fixes: 099ada2c8726 ("io_uring/rw: add write support for IOCB_DIO_CALLER_COMP") Reported-by: Andres Freund <andres@anarazel.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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#
c900529f |
| 12-Sep-2023 |
Thomas Zimmermann <tzimmermann@suse.de> |
Merge drm/drm-fixes into drm-misc-fixes
Forwarding to v6.6-rc1.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
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#
1ac731c5 |
| 30-Aug-2023 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'next' into for-linus
Prepare input updates for 6.6 merge window.
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#
c1b7fcf3 |
| 29-Aug-2023 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'for-6.6/io_uring-2023-08-28' of git://git.kernel.dk/linux
Pull io_uring updates from Jens Axboe: "Fairly quiet round in terms of features, mostly just improvements all over the map for
Merge tag 'for-6.6/io_uring-2023-08-28' of git://git.kernel.dk/linux
Pull io_uring updates from Jens Axboe: "Fairly quiet round in terms of features, mostly just improvements all over the map for existing code. In detail:
- Initial support for socket operations through io_uring. Latter half of this will likely land with the 6.7 kernel, then allowing things like get/setsockopt (Breno)
- Cleanup of the cancel code, and then adding support for canceling requests with the opcode as the key (me)
- Improvements for the io-wq locking (me)
- Fix affinity setting for SQPOLL based io-wq (me)
- Remove the io_uring userspace code. These were added initially as copies from liburing, but all of them have since bitrotted and are way out of date at this point. Rather than attempt to keep them in sync, just get rid of them. People will have liburing available anyway for these examples. (Pavel)
- Series improving the CQ/SQ ring caching (Pavel)
- Misc fixes and cleanups (Pavel, Yue, me)"
* tag 'for-6.6/io_uring-2023-08-28' of git://git.kernel.dk/linux: (47 commits) io_uring: move iopoll ctx fields around io_uring: move multishot cqe cache in ctx io_uring: separate task_work/waiting cache line io_uring: banish non-hot data to end of io_ring_ctx io_uring: move non aligned field to the end io_uring: add option to remove SQ indirection io_uring: compact SQ/CQ heads/tails io_uring: force inline io_fill_cqe_req io_uring: merge iopoll and normal completion paths io_uring: reorder cqring_flush and wakeups io_uring: optimise extra io_get_cqe null check io_uring: refactor __io_get_cqe() io_uring: simplify big_cqe handling io_uring: cqe init hardening io_uring: improve cqe !tracing hot path io_uring/rsrc: Annotate struct io_mapped_ubuf with __counted_by io_uring/sqpoll: fix io-wq affinity when IORING_SETUP_SQPOLL is used io_uring: simplify io_run_task_work_sig return io_uring/rsrc: keep one global dummy_ubuf io_uring: never overflow io_aux_cqe ...
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#
6016fc91 |
| 28-Aug-2023 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'iomap-6.6-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull iomap updates from Darrick Wong: "We've got some big changes for this release -- I'm very happy to be landing w
Merge tag 'iomap-6.6-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull iomap updates from Darrick Wong: "We've got some big changes for this release -- I'm very happy to be landing willy's work to enable large folios for the page cache for general read and write IOs when the fs can make contiguous space allocations, and Ritesh's work to track sub-folio dirty state to eliminate the write amplification problems inherent in using large folios.
As a bonus, io_uring can now process write completions in the caller's context instead of bouncing through a workqueue, which should reduce io latency dramatically. IOWs, XFS should see a nice performance bump for both IO paths.
Summary:
- Make large writes to the page cache fill sparse parts of the cache with large folios, then use large memcpy calls for the large folio.
- Track the per-block dirty state of each large folio so that a buffered write to a single byte on a large folio does not result in a (potentially) multi-megabyte writeback IO.
- Allow some directio completions to be performed in the initiating task's context instead of punting through a workqueue. This will reduce latency for some io_uring requests"
* tag 'iomap-6.6-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (26 commits) iomap: support IOCB_DIO_CALLER_COMP io_uring/rw: add write support for IOCB_DIO_CALLER_COMP fs: add IOCB flags related to passing back dio completions iomap: add IOMAP_DIO_INLINE_COMP iomap: only set iocb->private for polled bio iomap: treat a write through cache the same as FUA iomap: use an unsigned type for IOMAP_DIO_* defines iomap: cleanup up iomap_dio_bio_end_io() iomap: Add per-block dirty state tracking to improve performance iomap: Allocate ifs in ->write_begin() early iomap: Refactor iomap_write_delalloc_punch() function out iomap: Use iomap_punch_t typedef iomap: Fix possible overflow condition in iomap_write_delalloc_scan iomap: Add some uptodate state handling helpers for ifs state bitmap iomap: Drop ifs argument from iomap_set_range_uptodate() iomap: Rename iomap_page to iomap_folio_state and others iomap: Copy larger chunks from userspace iomap: Create large folios in the buffered write path filemap: Allow __filemap_get_folio to allocate large folios filemap: Add fgf_t typedef ...
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#
de16588a |
| 28-Aug-2023 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'v6.6-vfs.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner: "This contains the usual miscellaneous features, cleanups, and fixes
Merge tag 'v6.6-vfs.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner: "This contains the usual miscellaneous features, cleanups, and fixes for vfs and individual filesystems.
Features:
- Block mode changes on symlinks and rectify our broken semantics
- Report file modifications via fsnotify() for splice
- Allow specifying an explicit timeout for the "rootwait" kernel command line option. This allows to timeout and reboot instead of always waiting indefinitely for the root device to show up
- Use synchronous fput for the close system call
Cleanups:
- Get rid of open-coded lockdep workarounds for async io submitters and replace it all with a single consolidated helper
- Simplify epoll allocation helper
- Convert simple_write_begin and simple_write_end to use a folio
- Convert page_cache_pipe_buf_confirm() to use a folio
- Simplify __range_close to avoid pointless locking
- Disable per-cpu buffer head cache for isolated cpus
- Port ecryptfs to kmap_local_page() api
- Remove redundant initialization of pointer buf in pipe code
- Unexport the d_genocide() function which is only used within core vfs
- Replace printk(KERN_ERR) and WARN_ON() with WARN()
Fixes:
- Fix various kernel-doc issues
- Fix refcount underflow for eventfds when used as EFD_SEMAPHORE
- Fix a mainly theoretical issue in devpts
- Check the return value of __getblk() in reiserfs
- Fix a racy assert in i_readcount_dec
- Fix integer conversion issues in various functions
- Fix LSM security context handling during automounts that prevented NFS superblock sharing"
* tag 'v6.6-vfs.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (39 commits) cachefiles: use kiocb_{start,end}_write() helpers ovl: use kiocb_{start,end}_write() helpers aio: use kiocb_{start,end}_write() helpers io_uring: use kiocb_{start,end}_write() helpers fs: create kiocb_{start,end}_write() helpers fs: add kerneldoc to file_{start,end}_write() helpers io_uring: rename kiocb_end_write() local helper splice: Convert page_cache_pipe_buf_confirm() to use a folio libfs: Convert simple_write_begin and simple_write_end to use a folio fs/dcache: Replace printk and WARN_ON by WARN fs/pipe: remove redundant initialization of pointer buf fs: Fix kernel-doc warnings devpts: Fix kernel-doc warnings doc: idmappings: fix an error and rephrase a paragraph init: Add support for rootwait timeout parameter vfs: fix up the assert in i_readcount_dec fs: Fix one kernel-doc comment docs: filesystems: idmappings: clarify from where idmappings are taken fs/buffer.c: disable per-CPU buffer_head cache for isolated CPUs vfs, security: Fix automount superblock LSM init problem, preventing NFS sb sharing ...
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Revision tags: v6.5, v6.1.49, v6.1.48 |
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ec26c225 |
| 24-Aug-2023 |
Pavel Begunkov <asml.silence@gmail.com> |
io_uring: merge iopoll and normal completion paths
io_do_iopoll() and io_submit_flush_completions() are pretty similar, both filling CQEs and then free a list of requests. Don't duplicate it and mak
io_uring: merge iopoll and normal completion paths
io_do_iopoll() and io_submit_flush_completions() are pretty similar, both filling CQEs and then free a list of requests. Don't duplicate it and make iopoll use __io_submit_flush_completions(), which also helps with inlining and other optimisations.
For that, we need to first find all completed iopoll requests and splice them from the iopoll list and then pass it down. This adds one extra list traversal, which should be fine as requests will stay hot in cache.
CQ locking is already conditional, introduce ->lockless_cq and skip locking for IOPOLL as it's protected by ->uring_lock.
We also add a wakeup optimisation for IOPOLL to __io_cq_unlock_post(), so it works just like io_cqring_ev_posted_iopoll().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/3840473f5e8a960de35b77292026691880f6bdbc.1692916914.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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54927baf |
| 24-Aug-2023 |
Pavel Begunkov <asml.silence@gmail.com> |
io_uring: reorder cqring_flush and wakeups
Unlike in the past, io_commit_cqring_flush() doesn't do anything that may need io_cqring_wake() to be issued after, all requests it completes will go via t
io_uring: reorder cqring_flush and wakeups
Unlike in the past, io_commit_cqring_flush() doesn't do anything that may need io_cqring_wake() to be issued after, all requests it completes will go via task_work. Do io_commit_cqring_flush() after io_cqring_wake() to clean up __io_cq_unlock_post().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/ed32dcfeec47e6c97bd6b18c152ddce5b218403f.1692916914.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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e484fd73 |
| 17-Aug-2023 |
Amir Goldstein <amir73il@gmail.com> |
io_uring: use kiocb_{start,end}_write() helpers
Use helpers instead of the open coded dance to silence lockdep warnings.
Suggested-by: Jan Kara <jack@suse.cz> Signed-off-by: Amir Goldstein <amir73i
io_uring: use kiocb_{start,end}_write() helpers
Use helpers instead of the open coded dance to silence lockdep warnings.
Suggested-by: Jan Kara <jack@suse.cz> Signed-off-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Jens Axboe <axboe@kernel.dk> Message-Id: <20230817141337.1025891-5-amir73il@gmail.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
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a370167f |
| 17-Aug-2023 |
Amir Goldstein <amir73il@gmail.com> |
io_uring: rename kiocb_end_write() local helper
This helper does not take a kiocb as input and we want to create a common helper by that name that takes a kiocb as input.
Signed-off-by: Amir Goldst
io_uring: rename kiocb_end_write() local helper
This helper does not take a kiocb as input and we want to create a common helper by that name that takes a kiocb as input.
Signed-off-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Jens Axboe <axboe@kernel.dk> Message-Id: <20230817141337.1025891-2-amir73il@gmail.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
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Revision tags: v6.1.46 |
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00b0db56 |
| 11-Aug-2023 |
Pavel Begunkov <asml.silence@gmail.com> |
io_uring: open code io_fill_cqe_req()
io_fill_cqe_req() is only called from one place, open code it, and rename __io_fill_cqe_req().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: htt
io_uring: open code io_fill_cqe_req()
io_fill_cqe_req() is only called from one place, open code it, and rename __io_fill_cqe_req().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/f432ce75bb1c94cadf0bd2add4d6aa510bd1fb36.1691757663.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Revision tags: v6.1.45, v6.1.44 |
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2612e3bb |
| 07-Aug-2023 |
Rodrigo Vivi <rodrigo.vivi@intel.com> |
Merge drm/drm-next into drm-intel-next
Catching-up with drm-next and drm-intel-gt-next. It will unblock a code refactor around the platform definitions (names vs acronyms).
Signed-off-by: Rodrigo V
Merge drm/drm-next into drm-intel-next
Catching-up with drm-next and drm-intel-gt-next. It will unblock a code refactor around the platform definitions (names vs acronyms).
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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