Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 updates from Ted Ts'o:
 "The first two changes involve files outside of fs/ext4:

   - submit_bh() can never return an error, so change it to return void,
     and remove the unused checks from its callers

   - fix I_DIRTY_TIME handling so it will be set even if the inode
     already has I_DIRTY_INODE

  Performance:

   - Always enable i_version counter (as btrfs and xfs already do).
     Remove some uneeded i_version bumps to avoid unnecessary nfs cache
     invalidations

   - Wake up journal waiters in FIFO order, to avoid some journal users
     from not getting a journal handle for an unfairly long time

   - In ext4_write_begin() allocate any necessary buffer heads before
     starting the journal handle

   - Don't try to prefetch the block allocation bitmaps for a read-only
     file system

  Bug Fixes:

   - Fix a number of fast commit bugs, including resources leaks and out
     of bound references in various error handling paths and/or if the
     fast commit log is corrupted

   - Avoid stopping the online resize early when expanding a file system
     which is less than 16TiB to a size greater than 16TiB

   - Fix apparent metadata corruption caused by a race with a metadata
     buffer head getting migrated while it was trying to be read

   - Mark the lazy initialization thread freezable to prevent suspend
     failures

   - Other miscellaneous bug fixes

  Cleanups:

   - Break up the incredibly long ext4_full_super() function by
     refactoring to move code into more understandable, smaller
     functions

   - Remove the deprecated (and ignored) noacl and nouser_attr mount
     option

   - Factor out some common code in fast commit handling

   - Other miscellaneous cleanups"

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (53 commits)
  ext4: fix potential out of bound read in ext4_fc_replay_scan()
  ext4: factor out ext4_fc_get_tl()
  ext4: introduce EXT4_FC_TAG_BASE_LEN helper
  ext4: factor out ext4_free_ext_path()
  ext4: remove unnecessary drop path references in mext_check_coverage()
  ext4: update 'state->fc_regions_size' after successful memory allocation
  ext4: fix potential memory leak in ext4_fc_record_regions()
  ext4: fix potential memory leak in ext4_fc_record_modified_inode()
  ext4: remove redundant checking in ext4_ioctl_checkpoint
  jbd2: add miss release buffer head in fc_do_one_pass()
  ext4: move DIOREAD_NOLOCK setting to ext4_set_def_opts()
  ext4: remove useless local variable 'blocksize'
  ext4: unify the ext4 super block loading operation
  ext4: factor out ext4_journal_data_mode_check()
  ext4: factor out ext4_load_and_init_journal()
  ext4: factor out ext4_group_desc_init() and ext4_group_desc_free()
  ext4: factor out ext4_geometry_check()
  ext4: factor out ext4_check_feature_compatibility()
  ext4: factor out ext4_init_metadata_csum()
  ext4: factor out ext4_encoding_init()
  ...

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