Pull vfs fixes from Christian Brauner:
 "This contains the usual miscellaneous fixes and cleanups for vfs and
  individual fses:

  Fixes:
   - Revert ki_pos on error from buffered writes for direct io fallback
   - Add missing documentation for block device and superblock handling
     for changes merged this cycle
   - Fix reiserfs flexible array usage
   - Ensure that overlayfs sets ctime when setting mtime and atime
   - Disable deferred caller completions with overlayfs writes until
     proper support exists

  Cleanups:
   - Remove duplicate initialization in pipe code
   - Annotate aio kioctx_table with __counted_by"

* tag 'v6.6-rc4.vfs.fixes' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs:
  overlayfs: set ctime when setting mtime and atime
  ntfs3: put resources during ntfs_fill_super()
  ovl: disable IOCB_DIO_CALLER_COMP
  porting: document superblock as block device holder
  porting: document new block device opening order
  fs/pipe: remove duplicate "offset" initializer
  fs-writeback: do not requeue a clean inode having skipped pages
  aio: Annotate struct kioctx_table with __counted_by
  direct_write_fallback(): on error revert the ->ki_pos update from buffered write
  reiserfs: Replace 1-element array with C99 style flex-array