174 	struct nfs4_state_owner *sp;  in nfs4_get_renew_cred_server_locked()  local
180 		sp = rb_entry(pos, struct nfs4_state_owner, so_server_node);  in nfs4_get_renew_cred_server_locked()
181 		if (list_empty(&sp->so_states))  in nfs4_get_renew_cred_server_locked()
183 		cred = get_rpccred(sp->so_cred);  in nfs4_get_renew_cred_server_locked()
391 	struct nfs4_state_owner *sp;  in nfs4_find_state_owner_locked()  local
395 		sp = rb_entry(parent, struct nfs4_state_owner, so_server_node);  in nfs4_find_state_owner_locked()
397 		if (cred < sp->so_cred)  in nfs4_find_state_owner_locked()
399 		else if (cred > sp->so_cred)  in nfs4_find_state_owner_locked()
402 			if (!list_empty(&sp->so_lru))  in nfs4_find_state_owner_locked()
403 				list_del_init(&sp->so_lru);  in nfs4_find_state_owner_locked()
404 			atomic_inc(&sp->so_count);  in nfs4_find_state_owner_locked()
405 			return sp;  in nfs4_find_state_owner_locked()
417 	struct nfs4_state_owner *sp;  in nfs4_insert_state_owner_locked()  local
422 		sp = rb_entry(parent, struct nfs4_state_owner, so_server_node);  in nfs4_insert_state_owner_locked()
424 		if (new->so_cred < sp->so_cred)  in nfs4_insert_state_owner_locked()
426 		else if (new->so_cred > sp->so_cred)  in nfs4_insert_state_owner_locked()
429 			if (!list_empty(&sp->so_lru))  in nfs4_insert_state_owner_locked()
430 				list_del_init(&sp->so_lru);  in nfs4_insert_state_owner_locked()
431 			atomic_inc(&sp->so_count);  in nfs4_insert_state_owner_locked()
432 			return sp;  in nfs4_insert_state_owner_locked()
444 nfs4_remove_state_owner_locked(struct nfs4_state_owner *sp)  in nfs4_remove_state_owner_locked()  argument
446 	struct nfs_server *server = sp->so_server;  in nfs4_remove_state_owner_locked()
448 	if (!RB_EMPTY_NODE(&sp->so_server_node))  in nfs4_remove_state_owner_locked()
449 		rb_erase(&sp->so_server_node, &server->state_owners);  in nfs4_remove_state_owner_locked()
450 	ida_remove(&server->openowner_id, sp->so_seqid.owner_id);  in nfs4_remove_state_owner_locked()
480 	struct nfs4_state_owner *sp;  in nfs4_alloc_state_owner()  local
482 	sp = kzalloc(sizeof(*sp), gfp_flags);  in nfs4_alloc_state_owner()
483 	if (!sp)  in nfs4_alloc_state_owner()
485 	sp->so_server = server;  in nfs4_alloc_state_owner()
486 	sp->so_cred = get_rpccred(cred);  in nfs4_alloc_state_owner()
487 	spin_lock_init(&sp->so_lock);  in nfs4_alloc_state_owner()
488 	INIT_LIST_HEAD(&sp->so_states);  in nfs4_alloc_state_owner()
489 	nfs4_init_seqid_counter(&sp->so_seqid);  in nfs4_alloc_state_owner()
490 	atomic_set(&sp->so_count, 1);  in nfs4_alloc_state_owner()
491 	INIT_LIST_HEAD(&sp->so_lru);  in nfs4_alloc_state_owner()
492 	seqcount_init(&sp->so_reclaim_seqcount);  in nfs4_alloc_state_owner()
493 	mutex_init(&sp->so_delegreturn_mutex);  in nfs4_alloc_state_owner()
494 	return sp;  in nfs4_alloc_state_owner()
498 nfs4_drop_state_owner(struct nfs4_state_owner *sp)  in nfs4_drop_state_owner()  argument
500 	struct rb_node *rb_node = &sp->so_server_node;  in nfs4_drop_state_owner()
503 		struct nfs_server *server = sp->so_server;  in nfs4_drop_state_owner()
515 static void nfs4_free_state_owner(struct nfs4_state_owner *sp)  in nfs4_free_state_owner()  argument
517 	nfs4_destroy_seqid_counter(&sp->so_seqid);  in nfs4_free_state_owner()
518 	put_rpccred(sp->so_cred);  in nfs4_free_state_owner()
519 	kfree(sp);  in nfs4_free_state_owner()
525 	struct nfs4_state_owner *sp, *tmp;  in nfs4_gc_state_owners()  local
532 	list_for_each_entry_safe(sp, tmp, &server->state_owners_lru, so_lru) {  in nfs4_gc_state_owners()
534 		if (time_in_range(sp->so_expires, time_min, time_max))  in nfs4_gc_state_owners()
536 		list_move(&sp->so_lru, &doomed);  in nfs4_gc_state_owners()
537 		nfs4_remove_state_owner_locked(sp);  in nfs4_gc_state_owners()
541 	list_for_each_entry_safe(sp, tmp, &doomed, so_lru) {  in nfs4_gc_state_owners()
542 		list_del(&sp->so_lru);  in nfs4_gc_state_owners()
543 		nfs4_free_state_owner(sp);  in nfs4_gc_state_owners()
559 	struct nfs4_state_owner *sp, *new;  in nfs4_get_state_owner()  local
562 	sp = nfs4_find_state_owner_locked(server, cred);  in nfs4_get_state_owner()
564 	if (sp != NULL)  in nfs4_get_state_owner()
573 		sp = nfs4_insert_state_owner_locked(new);  in nfs4_get_state_owner()
575 	} while (sp == ERR_PTR(-EAGAIN));  in nfs4_get_state_owner()
576 	if (sp != new)  in nfs4_get_state_owner()
580 	return sp;  in nfs4_get_state_owner()
595 void nfs4_put_state_owner(struct nfs4_state_owner *sp)  in nfs4_put_state_owner()  argument
597 	struct nfs_server *server = sp->so_server;  in nfs4_put_state_owner()
600 	if (!atomic_dec_and_lock(&sp->so_count, &clp->cl_lock))  in nfs4_put_state_owner()
603 	sp->so_expires = jiffies;  in nfs4_put_state_owner()
604 	list_add_tail(&sp->so_lru, &server->state_owners_lru);  in nfs4_put_state_owner()
618 	struct nfs4_state_owner *sp, *tmp;  in nfs4_purge_state_owners()  local
622 	list_for_each_entry_safe(sp, tmp, &server->state_owners_lru, so_lru) {  in nfs4_purge_state_owners()
623 		list_move(&sp->so_lru, &doomed);  in nfs4_purge_state_owners()
624 		nfs4_remove_state_owner_locked(sp);  in nfs4_purge_state_owners()
628 	list_for_each_entry_safe(sp, tmp, &doomed, so_lru) {  in nfs4_purge_state_owners()
629 		list_del(&sp->so_lru);  in nfs4_purge_state_owners()
630 		nfs4_free_state_owner(sp);  in nfs4_purge_state_owners()
1088 	struct nfs4_state_owner *sp;  in nfs_increment_open_seqid()  local
1093 	sp = container_of(seqid->sequence, struct nfs4_state_owner, so_seqid);  in nfs_increment_open_seqid()
1095 		nfs4_drop_state_owner(sp);  in nfs_increment_open_seqid()
1096 	if (!nfs4_has_session(sp->so_server->nfs_client))  in nfs_increment_open_seqid()
1444 static int nfs4_reclaim_open_state(struct nfs4_state_owner *sp, const struct nfs4_state_recovery_op…  in nfs4_reclaim_open_state()  argument
1458 	spin_lock(&sp->so_lock);  in nfs4_reclaim_open_state()
1459 	raw_write_seqcount_begin(&sp->so_reclaim_seqcount);  in nfs4_reclaim_open_state()
1461 	list_for_each_entry(state, &sp->so_states, open_states) {  in nfs4_reclaim_open_state()
1469 		spin_unlock(&sp->so_lock);  in nfs4_reclaim_open_state()
1470 		status = ops->recover_open(sp, state);  in nfs4_reclaim_open_state()
1487 				spin_lock(&sp->so_lock);  in nfs4_reclaim_open_state()
1508 				nfs4_state_mark_reclaim_nograce(sp->so_server->nfs_client, state);  in nfs4_reclaim_open_state()
1512 				nfs4_state_mark_reclaim_nograce(sp->so_server->nfs_client, state);  in nfs4_reclaim_open_state()
1521 		spin_lock(&sp->so_lock);  in nfs4_reclaim_open_state()
1524 	raw_write_seqcount_end(&sp->so_reclaim_seqcount);  in nfs4_reclaim_open_state()
1525 	spin_unlock(&sp->so_lock);  in nfs4_reclaim_open_state()
1529 	spin_lock(&sp->so_lock);  in nfs4_reclaim_open_state()
1530 	raw_write_seqcount_end(&sp->so_reclaim_seqcount);  in nfs4_reclaim_open_state()
1531 	spin_unlock(&sp->so_lock);  in nfs4_reclaim_open_state()
1555 	struct nfs4_state_owner *sp;  in nfs4_reset_seqids()  local
1563 		sp = rb_entry(pos, struct nfs4_state_owner, so_server_node);  in nfs4_reset_seqids()
1564 		sp->so_seqid.flags = 0;  in nfs4_reset_seqids()
1565 		spin_lock(&sp->so_lock);  in nfs4_reset_seqids()
1566 		list_for_each_entry(state, &sp->so_states, open_states) {  in nfs4_reset_seqids()
1570 		spin_unlock(&sp->so_lock);  in nfs4_reset_seqids()
1605 	struct nfs4_state_owner *sp;  in nfs4_clear_reclaim_server()  local
1613 		sp = rb_entry(pos, struct nfs4_state_owner, so_server_node);  in nfs4_clear_reclaim_server()
1614 		spin_lock(&sp->so_lock);  in nfs4_clear_reclaim_server()
1615 		list_for_each_entry(state, &sp->so_states, open_states) {  in nfs4_clear_reclaim_server()
1621 		spin_unlock(&sp->so_lock);  in nfs4_clear_reclaim_server()
1711 	struct nfs4_state_owner *sp;  in nfs4_do_reclaim()  local
1724 			sp = rb_entry(pos,  in nfs4_do_reclaim()
1727 							&sp->so_flags))  in nfs4_do_reclaim()
1729 			atomic_inc(&sp->so_count);  in nfs4_do_reclaim()
1733 			status = nfs4_reclaim_open_state(sp, ops);  in nfs4_do_reclaim()
1735 				set_bit(ops->owner_flag_bit, &sp->so_flags);  in nfs4_do_reclaim()
1736 				nfs4_put_state_owner(sp);  in nfs4_do_reclaim()
1741 			nfs4_put_state_owner(sp);  in nfs4_do_reclaim()