hammer_isactive
if (hammer_isactive(&ip->lock) == 2 && ip->vp)
if (hammer_isactive(&ip->lock) == 1 && ip->vp == NULL)
KKASSERT(hammer_isactive(&ip->lock) >= 1);
if (hammer_isactive(&ip->lock) > 1) {
("hammer_unload_inode: %d refs", hammer_isactive(&ip->lock)));
KKASSERT(hammer_isactive(&io->lock));
KKASSERT(hammer_isactive(&io->lock));
KKASSERT(hammer_isactive(&io->lock) == 1);
KKASSERT(hammer_isactive(&io->lock) && io->bp != NULL);
KKASSERT(hammer_isactive(&ip->lock) > 0);
KKASSERT(hammer_isactive(&node->lock) && node->ondisk != NULL);