Merge tag 'xfs-4.20-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
"Dave and I have continued our work fixing corruption problems that can
be found when running long-term burn-in exercisers on xfs. Here are
some patches fixing most of the problems, but there will likely be
more. :/
- Numerous corruption fixes for copy on write
- Numerous corruption fixes for blocksize < pagesize writes
- Don't miscalculate AG reservations for small final AGs
- Fix page cache truncation to work properly for reflink and extent
shifting
- Fix use-after-free when retrying failed inode/dquot buffer logging
- Fix corruptions seen when using copy_file_range in directio mode"
* tag 'xfs-4.20-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
iomap: readpages doesn't zero page tail beyond EOF
vfs: vfs_dedupe_file_range() doesn't return EOPNOTSUPP
iomap: dio data corruption and spurious errors when pipes fill
iomap: sub-block dio needs to zeroout beyond EOF
iomap: FUA is wrong for DIO O_DSYNC writes into unwritten extents
xfs: delalloc -> unwritten COW fork allocation can go wrong
xfs: flush removing page cache in xfs_reflink_remap_prep
xfs: extent shifting doesn't fully invalidate page cache
xfs: finobt AG reserves don't consider last AG can be a runt
xfs: fix transient reference count error in xfs_buf_resubmit_failed_buffers
xfs: uncached buffer tracing needs to print bno
xfs: make xfs_file_remap_range() static
xfs: fix shared extent data corruption due to missing cow reservation