[PATCH 14/15] btrfs: drop uuid_mutex in btrfs_destroy_dev_replace_tgtdev()

[Anand Jain]

Delete the uuid_mutex lock here as this thread access the
btrfs_fs_devices::devices only. And the device_list_mutex lock is already
in place.

Signed-off-by: Anand Jain <anand.j...@oracle.com>
---
 fs/btrfs/volumes.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 4c29214e0c18..1f694083c15f 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2119,7 +2119,6 @@ void btrfs_rm_dev_replace_free_srcdev(struct 
btrfs_fs_info *fs_info,
 void btrfs_destroy_dev_replace_tgtdev(struct btrfs_fs_info *fs_info,
                                      struct btrfs_device *tgtdev)
 {
-       mutex_lock(&uuid_mutex);
        WARN_ON(!tgtdev);
        mutex_lock(&fs_info->fs_devices->device_list_mutex);
 
@@ -2135,7 +2134,6 @@ void btrfs_destroy_dev_replace_tgtdev(struct 
btrfs_fs_info *fs_info,
        list_del_rcu(&tgtdev->dev_list);
 
        mutex_unlock(&fs_info->fs_devices->device_list_mutex);
-       mutex_unlock(&uuid_mutex);
 
        /*
         * The update_dev_time() with in btrfs_scratch_superblocks()
-- 
2.7.0

--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html