Btrfs: Add debugging for block group update failure

Signed-off-by: Chris Mason <chris.mason@oracle.com>

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 6f161abe2867220ec2fb5ca549f484ddd2dffe49..a340eeedd6c77ad8f1734e8669c4c02891d574ed 100644 (file)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1751,7 +1751,11 @@ int btrfs_alloc_extent(struct btrfs_trans_handle *trans,
 update_block:
        ret = update_block_group(trans, root, ins->objectid, ins->offset, 1, 0,
                                 data);
-       BUG_ON(ret);
+       if (ret) {
+               printk("update block group failed for %Lu %Lu\n",
+                      ins->objectid, ins->offset);
+               BUG();
+       }
        return 0;
 }