Merge tag 'gfs2-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux...

Pull gfs2 updates from Andreas Gruenbacher:

 - Use asynchronous glocks and timeouts to recover from deadlocks during
   rename and exchange: the lock ordering constraints the vfs uses are
   not sufficient to prevent deadlocks across multiple nodes.

 - Add support for IOMAP_ZERO and use iomap_zero_range to replace gfs2
   specific code.

 - Various other minor fixes and cleanups.

* tag 'gfs2-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: clear buf_in_tr when ending a transaction in sweep_bh_for_rgrps
  gfs2: Improve mmap write vs. truncate consistency
  gfs2: Use async glocks for rename
  gfs2: create function gfs2_glock_update_hold_time
  gfs2: separate holder for rgrps in gfs2_rename
  gfs2: Delete an unnecessary check before brelse()
  gfs2: Minor PAGE_SIZE arithmetic cleanups
  gfs2: Fix recovery slot bumping
  gfs2: Fix possible fs name overflows
  gfs2: untangle the logic in gfs2_drevalidate
  gfs2: Always mark inode dirty in fallocate
  gfs2: Minor gfs2_alloc_inode cleanup
  gfs2: implement gfs2_block_zero_range using iomap_zero_range
  gfs2: Add support for IOMAP_ZERO
  gfs2: gfs2_iomap_begin cleanup