| Message ID | Yo06uCPonxSkD0Md@magnolia (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [GIT,PULL] iomap: new code for 5.19 | expand |
The pull request you sent on Tue, 24 May 2022 13:06:16 -0700:
> git://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git tags/iomap-5.19-merge-2
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/8642174b52214dde4d8113f28fb4c9be5a432126
Thank you!
Hi Linus, Please pull this branch containing all the new code for iomap for 5.19. There's a couple of corrections sent in by Andreas for some accounting errors. The biggest change this time around is that writeback errors longer clear pageuptodate nor does XFS invalidate the page cache anymore. This brings XFS (and gfs2/zonefs) behavior in line with every other Linux filesystem driver, and fixes some UAF bugs that only cropped up after willy turned on multipage folios for XFS in 5.18-rc1. Regrettably, it took all the way to the end of the 5.18 cycle to find the source of these bugs and reach a consensus that XFS' writeback failure behavior from 20 years ago is no longer necessary. As usual, I did a test-merge with upstream master as of a few minutes ago, and didn't see any conflicts. Please let me know if you encounter any problems. --D The following changes since commit c5eb0a61238dd6faf37f58c9ce61c9980aaffd7a: Linux 5.18-rc6 (2022-05-08 13:54:17 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git tags/iomap-5.19-merge-2 for you to fetch changes up to e9c3a8e820ed0eeb2be05072f29f80d1b79f053b: iomap: don't invalidate folios after writeback errors (2022-05-16 15:27:38 -0700) ---------------------------------------------------------------- New code for 5.19: - Fix a couple of accounting errors in the buffered io code. - Discontinue the practice of marking folios !uptodate and invalidating them when writeback fails. This fixes some UAF bugs when multipage folios are enabled, and brings the behavior of XFS/gfs/zonefs into alignment with the behavior of all the other Linux filesystems. ---------------------------------------------------------------- Andreas Gruenbacher (2): iomap: iomap_write_failed fix iomap: iomap_write_end cleanup Darrick J. Wong (1): iomap: don't invalidate folios after writeback errors fs/iomap/buffered-io.c | 6 +++--- fs/xfs/xfs_aops.c | 4 +--- 2 files changed, 4 insertions(+), 6 deletions(-)