1524 pcachelink_locked_rele(pcachelink_t *pl)  in pcachelink_locked_rele()  argument
1526 	ASSERT(MUTEX_HELD(&pl->pcl_lock));  in pcachelink_locked_rele()
1527 	VERIFY(pl->pcl_refcnt >= 1);  in pcachelink_locked_rele()
1529 	pl->pcl_refcnt--;  in pcachelink_locked_rele()
1530 	if (pl->pcl_refcnt == 0) {  in pcachelink_locked_rele()
1531 		VERIFY(pl->pcl_state == PCL_INVALID);  in pcachelink_locked_rele()
1532 		ASSERT(pl->pcl_parent_pc == NULL);  in pcachelink_locked_rele()
1533 		ASSERT(pl->pcl_child_pc == NULL);  in pcachelink_locked_rele()
1534 		ASSERT(pl->pcl_parent_next == NULL);  in pcachelink_locked_rele()
1535 		ASSERT(pl->pcl_child_next == NULL);  in pcachelink_locked_rele()
1537 		pl->pcl_state = PCL_FREE;  in pcachelink_locked_rele()
1538 		mutex_destroy(&pl->pcl_lock);  in pcachelink_locked_rele()
1539 		kmem_free(pl, sizeof (pcachelink_t));  in pcachelink_locked_rele()
1541 		mutex_exit(&pl->pcl_lock);  in pcachelink_locked_rele()
1553 	pcachelink_t	*pl, **plpn;  in pcachelink_assoc()  local
1560 	for (pl = child->pc_parents; pl != NULL; pl = *plpn) {  in pcachelink_assoc()
1561 		mutex_enter(&pl->pcl_lock);  in pcachelink_assoc()
1562 		if (pl->pcl_state == PCL_INVALID) {  in pcachelink_assoc()
1564 			*plpn = pl->pcl_parent_next;  in pcachelink_assoc()
1565 			pl->pcl_child_pc = NULL;  in pcachelink_assoc()
1566 			pl->pcl_parent_next = NULL;  in pcachelink_assoc()
1567 			pcachelink_locked_rele(pl);  in pcachelink_assoc()
1568 		} else if (pl->pcl_parent_pc == parent) {  in pcachelink_assoc()
1570 			ASSERT(pl->pcl_state == PCL_VALID ||  in pcachelink_assoc()
1571 			    pl->pcl_state == PCL_STALE);  in pcachelink_assoc()
1572 			pl->pcl_state = PCL_VALID;  in pcachelink_assoc()
1573 			mutex_exit(&pl->pcl_lock);  in pcachelink_assoc()
1576 			plpn = &pl->pcl_parent_next;  in pcachelink_assoc()
1577 			mutex_exit(&pl->pcl_lock);  in pcachelink_assoc()
1582 	pl = kmem_zalloc(sizeof (pcachelink_t), KM_SLEEP);  in pcachelink_assoc()
1583 	mutex_init(&pl->pcl_lock,  NULL, MUTEX_DEFAULT, NULL);  in pcachelink_assoc()
1585 	pl->pcl_parent_pc = parent;  in pcachelink_assoc()
1586 	pl->pcl_child_next = parent->pc_children;  in pcachelink_assoc()
1587 	parent->pc_children = pl;  in pcachelink_assoc()
1588 	pl->pcl_refcnt++;  in pcachelink_assoc()
1590 	pl->pcl_child_pc = child;  in pcachelink_assoc()
1591 	pl->pcl_parent_next = child->pc_parents;  in pcachelink_assoc()
1592 	child->pc_parents = pl;  in pcachelink_assoc()
1593 	pl->pcl_refcnt++;  in pcachelink_assoc()
1595 	pl->pcl_state = PCL_VALID;  in pcachelink_assoc()
1605 	pcachelink_t	*pl, **plpn;  in pcachelink_mark_stale()  local
1610 	for (pl = pcp->pc_children; pl != NULL; pl = *plpn) {  in pcachelink_mark_stale()
1611 		mutex_enter(&pl->pcl_lock);  in pcachelink_mark_stale()
1612 		if (pl->pcl_state == PCL_INVALID) {  in pcachelink_mark_stale()
1617 			*plpn = pl->pcl_child_next;  in pcachelink_mark_stale()
1618 			pl->pcl_parent_pc = NULL;  in pcachelink_mark_stale()
1619 			pl->pcl_child_next = NULL;  in pcachelink_mark_stale()
1620 			pcachelink_locked_rele(pl);  in pcachelink_mark_stale()
1622 			pl->pcl_state = PCL_STALE;  in pcachelink_mark_stale()
1623 			plpn = &pl->pcl_child_next;  in pcachelink_mark_stale()
1624 			mutex_exit(&pl->pcl_lock);  in pcachelink_mark_stale()
1635 	pcachelink_t	*pl, **plpn;  in pcachelink_purge_stale()  local
1640 	for (pl = pcp->pc_children; pl != NULL; pl = *plpn) {  in pcachelink_purge_stale()
1641 		mutex_enter(&pl->pcl_lock);  in pcachelink_purge_stale()
1642 		switch (pl->pcl_state) {  in pcachelink_purge_stale()
1644 			pl->pcl_state = PCL_INVALID;  in pcachelink_purge_stale()
1647 			*plpn = pl->pcl_child_next;  in pcachelink_purge_stale()
1648 			pl->pcl_parent_pc = NULL;  in pcachelink_purge_stale()
1649 			pl->pcl_child_next = NULL;  in pcachelink_purge_stale()
1650 			pcachelink_locked_rele(pl);  in pcachelink_purge_stale()
1653 			plpn = &pl->pcl_child_next;  in pcachelink_purge_stale()
1654 			mutex_exit(&pl->pcl_lock);  in pcachelink_purge_stale()
1665 	pcachelink_t	*pl, **plpn;  in pcachelink_purge_all()  local
1670 	for (pl = pcp->pc_parents; pl != NULL; pl = *plpn) {  in pcachelink_purge_all()
1671 		mutex_enter(&pl->pcl_lock);  in pcachelink_purge_all()
1672 		pl->pcl_state = PCL_INVALID;  in pcachelink_purge_all()
1673 		*plpn = pl->pcl_parent_next;  in pcachelink_purge_all()
1674 		pl->pcl_child_pc = NULL;  in pcachelink_purge_all()
1675 		pl->pcl_parent_next = NULL;  in pcachelink_purge_all()
1676 		pcachelink_locked_rele(pl);  in pcachelink_purge_all()
1680 	for (pl = pcp->pc_children; pl != NULL; pl = *plpn) {  in pcachelink_purge_all()
1681 		mutex_enter(&pl->pcl_lock);  in pcachelink_purge_all()
1682 		pl->pcl_state = PCL_INVALID;  in pcachelink_purge_all()
1683 		*plpn = pl->pcl_child_next;  in pcachelink_purge_all()
1684 		pl->pcl_parent_pc = NULL;  in pcachelink_purge_all()
1685 		pl->pcl_child_next = NULL;  in pcachelink_purge_all()
1686 		pcachelink_locked_rele(pl);  in pcachelink_purge_all()