[PATCH 05/12] btrfs: remove useless mutex lock/unlock sequences

[David Sterba]

Signed-off-by: David Sterba <dste...@suse.cz>
---
 fs/btrfs/extent-tree.c |    6 ------
 1 files changed, 0 insertions(+), 6 deletions(-)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 31f33ba..c97ceab 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -756,8 +756,6 @@ again:
 
                        btrfs_release_path(root->fs_info->extent_root, path);
 
-                       mutex_lock(&head->mutex);
-                       mutex_unlock(&head->mutex);
                        btrfs_put_delayed_ref(&head->node);
                        goto again;
                }
@@ -2297,8 +2295,6 @@ again:
                                atomic_inc(&ref->refs);
 
                                spin_unlock(&delayed_refs->lock);
-                               mutex_lock(&head->mutex);
-                               mutex_unlock(&head->mutex);
 
                                btrfs_put_delayed_ref(ref);
                                cond_resched();
@@ -2363,8 +2359,6 @@ static noinline int check_delayed_ref(struct 
btrfs_trans_handle *trans,
 
                btrfs_release_path(root->fs_info->extent_root, path);
 
-               mutex_lock(&head->mutex);
-               mutex_unlock(&head->mutex);
                btrfs_put_delayed_ref(&head->node);
                return -EAGAIN;
        }
-- 
1.7.5.rc3

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