Commit 155725c9 authored by Jan Schmidt's avatar Jan Schmidt
Browse files

Btrfs: leave critical region in btrfs_find_all_roots as soon as possible 



When delayed refs exist, btrfs_find_all_roots used to hold the delayed ref
mutex way longer than actually required. We ought to drop it immediately
after we're done collecting all the delayed refs.

Signed-off-by: default avatarJan Schmidt <list.btrfs@jan-o-sch.net>
parent c3e06965

fs/btrfs/backref.c

+1 −2
Original line number Diff line number Diff line
@@ -839,6 +839,7 @@ again: 
			}

			ret = __add_delayed_refs(head, delayed_ref_seq,

						 &prefs_delayed);

			mutex_unlock(&head->mutex);

			if (ret) {

				spin_unlock(&delayed_refs->lock);

				goto out;
@@ -932,8 +933,6 @@ again: 
	}



out:

	if (head)

		mutex_unlock(&head->mutex);

	btrfs_free_path(path);

	while (!list_empty(&prefs)) {

		ref = list_first_entry(&prefs, struct __prelim_ref, list);

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