Andreas Gruenbacher 243145bc43 fs: Fix page_mkwrite off-by-one errors ... 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>		2020-01-06 08:58:23 -08:00
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apply.c	iomap: trace iomap_appply results	2019-11-22 08:36:00 -08:00
buffered-io.c	fs: Fix page_mkwrite off-by-one errors	2020-01-06 08:58:23 -08:00
direct-io.c	iomap: remove unneeded variable in iomap_dio_rw()	2019-11-26 09:28:47 -08:00
fiemap.c	iomap: iomap_bmap should check iomap_apply return value	2019-11-08 07:44:12 -08:00
Makefile	iomap: lift common tracing code from xfs to iomap	2019-10-21 08:51:59 -07:00
seek.c	iomap: use a srcmap for a read-modify-write I/O	2019-10-21 08:51:59 -07:00
swapfile.c	iomap: use a srcmap for a read-modify-write I/O	2019-10-21 08:51:59 -07:00
trace.c	iomap: lift common tracing code from xfs to iomap	2019-10-21 08:51:59 -07:00
trace.h	iomap: trace iomap_appply results	2019-11-22 08:36:00 -08:00