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| author | Jan Schmidt <list.btrfs@jan-o-sch.net> | 2012-06-22 14:01:00 +0200 |
|---|---|---|
| committer | Jan Schmidt <list.btrfs@jan-o-sch.net> | 2012-06-27 16:34:39 +0200 |
| commit | 155725c9c051a343be5e555bf943da827e6cf721 (patch) | |
| tree | 2d9fcdaf376797b077c4e230de575686ec7e1709 /fs/btrfs/backref.c | |
| parent | c3e0696523862c48b4d8c73ffb2867e9db478338 (diff) | |
| download | linux-stable-155725c9c051a343be5e555bf943da827e6cf721.tar.gz linux-stable-155725c9c051a343be5e555bf943da827e6cf721.tar.bz2 linux-stable-155725c9c051a343be5e555bf943da827e6cf721.zip | |
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: Jan Schmidt <list.btrfs@jan-o-sch.net>
Diffstat (limited to 'fs/btrfs/backref.c')
| -rw-r--r-- | fs/btrfs/backref.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index cf0df904347f..a383c18e74e8 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -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); |