提交 32b02538 编写于 作者: J Josef Bacik

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: NJosef Bacik <jbacik@fusionio.com>
上级 171f6537
......@@ -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) {
......
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