| Message ID | 20200806150743.GC6090@magnolia (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [GIT,PULL,v2] iomap: new code for 5.9-rc1 | expand |
The pull request you sent on Thu, 6 Aug 2020 08:07:43 -0700:
> git://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git tags/iomap-5.9-merge-5
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/0e4656a299db8484933a143259e7e5ebae2e3a01
Thank you!
Hi Linus, Please pull these new changes to the iomap code for 5.9. The most notable changes are: 1) iomap no longer invalidate the page cache when performing a direct read, since doing so is unnecessary and the old directio code doesn't do that either. 2) iomap embraced the use of returning ENOTBLK from a direct write to trigger falling back to a buffered write since ext4 already did this and btrfs wants it for their port. 3) iomap falls back to buffered writes if we're doing a direct write and the page cache invalidation after the flush fails; this was necessary to handle a corner case in the btrfs port. 4) Remove email virus scanner detritus that was accidentally included in yesterday's pull request. Clearly I need(ed) to update my git branch checker scripts. :( The branch merges cleanly with your HEAD branch as of a few minutes ago. Please let me know if there are any strange problems. --D The following changes since commit dcb7fd82c75ee2d6e6f9d8cc71c52519ed52e258: Linux 5.8-rc4 (2020-07-05 16:20:22 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git tags/iomap-5.9-merge-5 for you to fetch changes up to 60263d5889e6dc5987dc51b801be4955ff2e4aa7: iomap: fall back to buffered writes for invalidation failures (2020-08-05 09:24:16 -0700) ---------------------------------------------------------------- New code for 5.9: - Make sure we call ->iomap_end with a failure code if ->iomap_begin failed in any way; some filesystems need to try to undo things. - Don't invalidate the page cache during direct reads since we already sync'd the cache with disk. - Make direct writes fall back to the page cache if the pre-write cache invalidation fails. This avoids a cache coherency problem. - Fix some idiotic virus scanner warning bs in the previous tag. ---------------------------------------------------------------- Andreas Gruenbacher (1): iomap: Make sure iomap_end is called after iomap_begin Christoph Hellwig (2): xfs: use ENOTBLK for direct I/O to buffered I/O fallback iomap: fall back to buffered writes for invalidation failures Dave Chinner (1): iomap: Only invalidate page cache pages on direct IO writes fs/ext4/file.c | 2 ++ fs/gfs2/file.c | 3 ++- fs/iomap/apply.c | 13 +++++++++---- fs/iomap/direct-io.c | 37 +++++++++++++++++++++---------------- fs/iomap/trace.h | 1 + fs/xfs/xfs_file.c | 8 ++++---- fs/zonefs/super.c | 7 +++++-- 7 files changed, 44 insertions(+), 27 deletions(-)