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10553a9165
iomap_dio_zero() will pad a fs block with zeroes if the direct IO size < fs block size. iomap_dio_zero() has an implicit assumption that fs block size < page_size. This is true for most filesystems at the moment. If the block size > page size, this will send the contents of the page next to zero page(as len > PAGE_SIZE) to the underlying block device, causing FS corruption. iomap is a generic infrastructure and it should not make any assumptions about the fs block size and the page size of the system. Signed-off-by: Pankaj Raghav <p.raghav@samsung.com> Link: https://lore.kernel.org/r/20240822135018.1931258-7-kernel@pankajraghav.com Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Daniel Gomez <da.gomez@samsung.com> Signed-off-by: Christian Brauner <brauner@kernel.org> |
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| .. | ||
| buffered-io.c | ||
| direct-io.c | ||
| fiemap.c | ||
| iter.c | ||
| Makefile | ||
| seek.c | ||
| swapfile.c | ||
| trace.c | ||
| trace.h | ||