Btrfs: BUG to BUG_ON changes

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

fs/btrfs/ctree.c

@@ -2157,8 +2157,7 @@ static int insert_ptr(struct btrfs_trans_handle *trans, struct btrfs_root
 	BUG_ON(!path->nodes[level]);
 	lower = path->nodes[level];
 	nritems = btrfs_header_nritems(lower);
-	if (slot > nritems)
-		BUG();
+	BUG_ON(slot > nritems);
 	if (nritems == BTRFS_NODEPTRS_PER_BLOCK(root))
 		BUG();
 	if (slot != nritems) {

fs/btrfs/free-space-cache.c

@@ -253,8 +253,7 @@ int btrfs_add_free_space(struct btrfs_block_group_cache *block_group,
 
 	if (ret) {
 		printk(KERN_ERR "btrfs: unable to add free space :%d\n", ret);
-		if (ret == -EEXIST)
-			BUG();
+		BUG_ON(ret == -EEXIST);
 	}
 
 	return ret;

fs/btrfs/tree-log.c

@@ -1222,8 +1222,7 @@ insert:
 	ret = insert_one_name(trans, root, path, key->objectid, key->offset,
 			      name, name_len, log_type, &log_key);
 
-	if (ret && ret != -ENOENT)
-		BUG();
+	BUG_ON(ret && ret != -ENOENT);
 	goto out;
 }