1 files changed, 1 insertions, 2 deletions

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 73899d0f9d8f..f82f8db02275 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -1387,8 +1387,7 @@ int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root
         lowest_level = p->lowest_level;
         WARN_ON(lowest_level && ins_len > 0);
         WARN_ON(p->nodes[0] != NULL);
-        WARN_ON(cow && root == root->fs_info->extent_root &&
-                !mutex_is_locked(&root->fs_info->alloc_mutex));
+
         if (ins_len < 0)
                 lowest_unlock = 2;