1 files changed, 1 insertions, 0 deletions

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 3dea757d4cbb..e32ddff55b0e 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -116,6 +116,7 @@ struct btrfs_root *open_ctree(struct super_block *sb,
         fs_info->sb_buffer = sb_buffer;
         fs_info->sb = sb;
         mutex_init(&fs_info->trans_mutex);
+        mutex_init(&fs_info->fs_mutex);
         memset(&fs_info->current_insert, 0, sizeof(fs_info->current_insert));
         memset(&fs_info->last_insert, 0, sizeof(fs_info->last_insert));