Merge tag 'pull-simple_recursive_removal' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull simple_recursive_removal() update from Al Viro:
 "Removing subtrees of kernel filesystems is done in quite a few places;
  unfortunately, it's easy to get wrong. A number of open-coded attempts
  are out there, with varying amount of bogosities.

  simple_recursive_removal() had been introduced for doing that with all
  precautions needed; it does an equivalent of rm -rf, with sufficient
  locking, eviction of anything mounted on top of the subtree, etc.

  This series converts a bunch of open-coded instances to using that"

* tag 'pull-simple_recursive_removal' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  functionfs, gadgetfs: use simple_recursive_removal()
  kill binderfs_remove_file()
  fuse_ctl: use simple_recursive_removal()
  pstore: switch to locked_recursive_removal()
  binfmt_misc: switch to locked_recursive_removal()
  spufs: switch to locked_recursive_removal()
  add locked_recursive_removal()
  better lockdep annotations for simple_recursive_removal()
  simple_recursive_removal(): saner interaction with fsnotify

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