Commit 00bb36a0 authored by Josef Bacik's avatar Josef Bacik Committed by David Sterba
Browse files

btrfs: have proper error handling in btrfs_init_reloc_root 



create_reloc_root will return errors in the future, and __add_reloc_root
can return ENOMEM or EEXIST, so handle these errors properly.

Signed-off-by: default avatarJosef Bacik <josef@toxicpanda.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
[ add comment ]
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 03a7e111

fs/btrfs/relocation.c

+7 −1
Original line number Diff line number Diff line
@@ -856,9 +856,15 @@ int btrfs_init_reloc_root(struct btrfs_trans_handle *trans, 
	reloc_root = create_reloc_root(trans, root, root->root_key.objectid);

	if (clear_rsv)

		trans->block_rsv = rsv;

	if (IS_ERR(reloc_root))

		return PTR_ERR(reloc_root);



	ret = __add_reloc_root(reloc_root);

	BUG_ON(ret < 0);

	if (ret) {

		/* Pairs with create_reloc_root */

		btrfs_put_root(reloc_root);

		return ret;

	}

	root->reloc_root = btrfs_grab_root(reloc_root);

	return 0;

}