OpenCloudOS-Kernel/fs/iomap
Christoph Hellwig 390b9e54cd iomap: handle a post-direct I/O invalidate race in iomap_write_delalloc_release
[ Upstream commit 7a9d43eace888a0ee6095035997bb138425844d3 ]

When direct I/O completions invalidates the page cache it holds neither the
i_rwsem nor the invalidate_lock so it can be racing with
iomap_write_delalloc_release.  If the search for the end of the region that
contains data returns the start offset we hit such a race and just need to
look for the end of the newly created hole instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240910043949.3481298-2-hch@lst.de
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-10-10 11:57:39 +02:00
..
Makefile
buffered-io.c iomap: handle a post-direct I/O invalidate race in iomap_write_delalloc_release 2024-10-10 11:57:39 +02:00
direct-io.c iomap: support IOCB_DIO_CALLER_COMP 2023-08-01 17:32:49 -06:00
fiemap.c
iter.c iomap: write iomap validity checks 2022-11-29 09:09:17 +11:00
seek.c
swapfile.c
trace.c iomap: Add DIO tracepoints 2023-04-21 08:54:47 -07:00
trace.h iomap: Add DIO tracepoints 2023-04-21 08:54:47 -07:00