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Pull ext4 updates from Ted Ts'o:
 "A large number of cleanups and bug fixes, with many of the bug fixes
  found by Syzbot and fuzzing. (Many of the bug fixes involve less-used
  ext4 features such as fast_commit, inline_data and bigalloc)

  In addition, remove the writepage function for ext4, since the
  medium-term plan is to remove ->writepage() entirely. (The VM doesn't
  need or want writepage() for writeback, since it is fine with
  ->writepages() so long as ->migrate_folio() is implemented)"

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (58 commits)
  ext4: fix reserved cluster accounting in __es_remove_extent()
  ext4: fix inode leak in ext4_xattr_inode_create() on an error path
  ext4: allocate extended attribute value in vmalloc area
  ext4: avoid unaccounted block allocation when expanding inode
  ext4: initialize quota before expanding inode in setproject ioctl
  ext4: stop providing .writepage hook
  mm: export buffer_migrate_folio_norefs()
  ext4: switch to using write_cache_pages() for data=journal writeout
  jbd2: switch jbd2_submit_inode_data() to use fs-provided hook for data writeout
  ext4: switch to using ext4_do_writepages() for ordered data writeout
  ext4: move percpu_rwsem protection into ext4_writepages()
  ext4: provide ext4_do_writepages()
  ext4: add support for writepages calls that cannot map blocks
  ext4: drop pointless IO submission from ext4_bio_write_page()
  ext4: remove nr_submitted from ext4_bio_write_page()
  ext4: move keep_towrite handling to ext4_bio_write_page()
  ext4: handle redirtying in ext4_bio_write_page()
  ext4: fix kernel BUG in 'ext4_write_inline_data_end()'
  ext4: make ext4_mb_initialize_context return void
  ext4: fix deadlock due to mbcache entry corruption
  ...