Btrfs: add sanity tests for new qgroup accounting code

[linux-2.6-block.git] / fs / btrfs / ctree.c

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index bbbe4f1c5086cd82e1fffd0e72f3acc2528928b2..d99d9651dd58dc2e04ba9b2fdefc8b309bf31943 100644 (file)
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -1506,6 +1506,10 @@ static inline int should_cow_block(struct btrfs_trans_handle *trans,
                                   struct btrfs_root *root,
                                   struct extent_buffer *buf)
 {
+#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
+       if (unlikely(test_bit(BTRFS_ROOT_DUMMY_ROOT, &root->state)))
+               return 0;
+#endif
        /* ensure we can see the force_cow */
        smp_rmb();