tree 8f44153b771b4e1b04ebcdaae13d03a16bcd8a15
parent eb65405eb6860935d54b8ba90a5e231e07378be1
parent 60263d5889e6dc5987dc51b801be4955ff2e4aa7
author Linus Torvalds <torvalds@linux-foundation.org> 1596767712 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1596767712 -0700
mergetag object 60263d5889e6dc5987dc51b801be4955ff2e4aa7
 type commit
 tag iomap-5.9-merge-5
 tagger Darrick J. Wong <darrick.wong@oracle.com> 1596644751 -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.
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Merge tag 'iomap-5.9-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull iomap updates from Darrick Wong:
 "The most notable changes are:

   - iomap no longer invalidates the page cache when performing a direct
     read, since doing so is unnecessary and the old directio code
     doesn't do that either.

   - 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.

   - 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.

   - 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. :("

* tag 'iomap-5.9-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  iomap: fall back to buffered writes for invalidation failures
  xfs: use ENOTBLK for direct I/O to buffered I/O fallback
  iomap: Only invalidate page cache pages on direct IO writes
  iomap: Make sure iomap_end is called after iomap_begin