Commit 32b02538 authored by Josef Bacik's avatar Josef Bacik
Browse files

Btrfs: don't panic if we're trying to drop too many refs 



This is just obnoxious.  Just print a message, abort the transaction, and return
an error.  Thanks,

Signed-off-by: default avatarJosef Bacik <jbacik@fusionio.com>
parent 171f6537

fs/btrfs/extent-tree.c

+7 −1
Original line number Diff line number Diff line
@@ -5596,7 +5596,13 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans, 
	}



	refs = btrfs_extent_refs(leaf, ei);

	BUG_ON(refs < refs_to_drop);

	if (refs < refs_to_drop) {

		btrfs_err(info, "trying to drop %d refs but we only have %Lu "

			  "for bytenr %Lu\n", refs_to_drop, refs, bytenr);

		ret = -EINVAL;

		btrfs_abort_transaction(trans, extent_root, ret);

		goto out;

	}

	refs -= refs_to_drop;



	if (refs > 0) {