1 files changed, 1 insertions, 0 deletions

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 572e21eb644c..68391ecf2c59 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2277,6 +2277,7 @@ int open_ctree(struct super_block *sb,
 
 
         mutex_init(&fs_info->ordered_operations_mutex);
+        mutex_init(&fs_info->ordered_extent_flush_mutex);
         mutex_init(&fs_info->tree_log_mutex);
         mutex_init(&fs_info->chunk_mutex);
         mutex_init(&fs_info->transaction_kthread_mutex);