mirror of https://gitee.com/openkylin/linux.git
243145bc43
The check in block_page_mkwrite that is meant to determine whether an offset is within the inode size is off by one. This bug has been copied into iomap_page_mkwrite and several filesystems (ubifs, ext4, f2fs, ceph). Fix that by introducing a new page_mkwrite_check_truncate helper that checks for truncate and computes the bytes in the page up to EOF. Use the helper in iomap. NOTE from Darrick: The original patch fixed a number of filesystems, but then there were merge conflicts with the f2fs for-next tree; a subsequent re-submission of the patch had different btrfs changes with no explanation; and Christoph complained that each per-fs fix should be a separate patch. In my view that's too much risk to take on, so I decided to drop all the hunks except for iomap, since I've actually QA'd XFS. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> [darrick: drop everything but the iomap parts] Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> |
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| Makefile | ||
| apply.c | ||
| buffered-io.c | ||
| direct-io.c | ||
| fiemap.c | ||
| seek.c | ||
| swapfile.c | ||
| trace.c | ||
| trace.h | ||