tree b8f85ae12d67ec11d3fd2c812ef1124fce9a5d6f
parent 0dd092bf1091a114f22136e5776aec21e6e4af2a
author Kent Overstreet <kent.overstreet@linux.dev> 1697765104 -0400
committer Kent Overstreet <kent.overstreet@linux.dev> 1698769117 -0400

bcachefs: Don't run bch2_delete_dead_snapshots() unnecessarily

Be a bit more careful about when bch2_delete_dead_snapshots needs to
run: it only needs to run synchronously if we're running fsck, and it
only needs to run at all if we have snapshot nodes to delete or if fsck
has noticed that it needs to run.

Also:
  Rename BCH_FS_HAVE_DELETED_SNAPSHOTS -> BCH_FS_NEED_DELETE_DEAD_SNAPSHOTS

  Kill bch2_delete_dead_snapshots_hook(), move functionality to
  bch2_mark_snapshot()

  Factor out bch2_check_snapshot_needs_deletion(), to explicitly check
  if we need to be running snapshot deletion.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>