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()
390 	struct nfs4_state_owner *sp;  in nfs4_find_state_owner_locked()  local
394 		sp = rb_entry(parent, struct nfs4_state_owner, so_server_node);  in nfs4_find_state_owner_locked()
396 		if (cred < sp->so_cred)  in nfs4_find_state_owner_locked()
398 		else if (cred > sp->so_cred)  in nfs4_find_state_owner_locked()
401 			if (!list_empty(&sp->so_lru))  in nfs4_find_state_owner_locked()
402 				list_del_init(&sp->so_lru);  in nfs4_find_state_owner_locked()
403 			atomic_inc(&sp->so_count);  in nfs4_find_state_owner_locked()
404 			return sp;  in nfs4_find_state_owner_locked()
416 	struct nfs4_state_owner *sp;  in nfs4_insert_state_owner_locked()  local
421 		sp = rb_entry(parent, struct nfs4_state_owner, so_server_node);  in nfs4_insert_state_owner_locked()
423 		if (new->so_cred < sp->so_cred)  in nfs4_insert_state_owner_locked()
425 		else if (new->so_cred > sp->so_cred)  in nfs4_insert_state_owner_locked()
428 			if (!list_empty(&sp->so_lru))  in nfs4_insert_state_owner_locked()
429 				list_del_init(&sp->so_lru);  in nfs4_insert_state_owner_locked()
430 			atomic_inc(&sp->so_count);  in nfs4_insert_state_owner_locked()
431 			return sp;  in nfs4_insert_state_owner_locked()
443 nfs4_remove_state_owner_locked(struct nfs4_state_owner *sp)  in nfs4_remove_state_owner_locked()  argument
445 	struct nfs_server *server = sp->so_server;  in nfs4_remove_state_owner_locked()
447 	if (!RB_EMPTY_NODE(&sp->so_server_node))  in nfs4_remove_state_owner_locked()
448 		rb_erase(&sp->so_server_node, &server->state_owners);  in nfs4_remove_state_owner_locked()
449 	ida_remove(&server->openowner_id, sp->so_seqid.owner_id);  in nfs4_remove_state_owner_locked()
479 	struct nfs4_state_owner *sp;  in nfs4_alloc_state_owner()  local
481 	sp = kzalloc(sizeof(*sp), gfp_flags);  in nfs4_alloc_state_owner()
482 	if (!sp)  in nfs4_alloc_state_owner()
484 	sp->so_server = server;  in nfs4_alloc_state_owner()
485 	sp->so_cred = get_rpccred(cred);  in nfs4_alloc_state_owner()
486 	spin_lock_init(&sp->so_lock);  in nfs4_alloc_state_owner()
487 	INIT_LIST_HEAD(&sp->so_states);  in nfs4_alloc_state_owner()
488 	nfs4_init_seqid_counter(&sp->so_seqid);  in nfs4_alloc_state_owner()
489 	atomic_set(&sp->so_count, 1);  in nfs4_alloc_state_owner()
490 	INIT_LIST_HEAD(&sp->so_lru);  in nfs4_alloc_state_owner()
491 	seqcount_init(&sp->so_reclaim_seqcount);  in nfs4_alloc_state_owner()
492 	mutex_init(&sp->so_delegreturn_mutex);  in nfs4_alloc_state_owner()
493 	return sp;  in nfs4_alloc_state_owner()
497 nfs4_drop_state_owner(struct nfs4_state_owner *sp)  in nfs4_drop_state_owner()  argument
499 	struct rb_node *rb_node = &sp->so_server_node;  in nfs4_drop_state_owner()
502 		struct nfs_server *server = sp->so_server;  in nfs4_drop_state_owner()
514 static void nfs4_free_state_owner(struct nfs4_state_owner *sp)  in nfs4_free_state_owner()  argument
516 	nfs4_destroy_seqid_counter(&sp->so_seqid);  in nfs4_free_state_owner()
517 	put_rpccred(sp->so_cred);  in nfs4_free_state_owner()
518 	kfree(sp);  in nfs4_free_state_owner()
524 	struct nfs4_state_owner *sp, *tmp;  in nfs4_gc_state_owners()  local
531 	list_for_each_entry_safe(sp, tmp, &server->state_owners_lru, so_lru) {  in nfs4_gc_state_owners()
533 		if (time_in_range(sp->so_expires, time_min, time_max))  in nfs4_gc_state_owners()
535 		list_move(&sp->so_lru, &doomed);  in nfs4_gc_state_owners()
536 		nfs4_remove_state_owner_locked(sp);  in nfs4_gc_state_owners()
540 	list_for_each_entry_safe(sp, tmp, &doomed, so_lru) {  in nfs4_gc_state_owners()
541 		list_del(&sp->so_lru);  in nfs4_gc_state_owners()
542 		nfs4_free_state_owner(sp);  in nfs4_gc_state_owners()
558 	struct nfs4_state_owner *sp, *new;  in nfs4_get_state_owner()  local
561 	sp = nfs4_find_state_owner_locked(server, cred);  in nfs4_get_state_owner()
563 	if (sp != NULL)  in nfs4_get_state_owner()
572 		sp = nfs4_insert_state_owner_locked(new);  in nfs4_get_state_owner()
574 	} while (sp == ERR_PTR(-EAGAIN));  in nfs4_get_state_owner()
575 	if (sp != new)  in nfs4_get_state_owner()
579 	return sp;  in nfs4_get_state_owner()
594 void nfs4_put_state_owner(struct nfs4_state_owner *sp)  in nfs4_put_state_owner()  argument
596 	struct nfs_server *server = sp->so_server;  in nfs4_put_state_owner()
599 	if (!atomic_dec_and_lock(&sp->so_count, &clp->cl_lock))  in nfs4_put_state_owner()
602 	sp->so_expires = jiffies;  in nfs4_put_state_owner()
603 	list_add_tail(&sp->so_lru, &server->state_owners_lru);  in nfs4_put_state_owner()
617 	struct nfs4_state_owner *sp, *tmp;  in nfs4_purge_state_owners()  local
621 	list_for_each_entry_safe(sp, tmp, &server->state_owners_lru, so_lru) {  in nfs4_purge_state_owners()
622 		list_move(&sp->so_lru, &doomed);  in nfs4_purge_state_owners()
623 		nfs4_remove_state_owner_locked(sp);  in nfs4_purge_state_owners()
627 	list_for_each_entry_safe(sp, tmp, &doomed, so_lru) {  in nfs4_purge_state_owners()
628 		list_del(&sp->so_lru);  in nfs4_purge_state_owners()
629 		nfs4_free_state_owner(sp);  in nfs4_purge_state_owners()
1087 	struct nfs4_state_owner *sp;  in nfs_increment_open_seqid()  local
1092 	sp = container_of(seqid->sequence, struct nfs4_state_owner, so_seqid);  in nfs_increment_open_seqid()
1094 		nfs4_drop_state_owner(sp);  in nfs_increment_open_seqid()
1095 	if (!nfs4_has_session(sp->so_server->nfs_client))  in nfs_increment_open_seqid()
1443 static int nfs4_reclaim_open_state(struct nfs4_state_owner *sp, const struct nfs4_state_recovery_op…  in nfs4_reclaim_open_state()  argument
1457 	spin_lock(&sp->so_lock);  in nfs4_reclaim_open_state()
1458 	raw_write_seqcount_begin(&sp->so_reclaim_seqcount);  in nfs4_reclaim_open_state()
1460 	list_for_each_entry(state, &sp->so_states, open_states) {  in nfs4_reclaim_open_state()
1468 		spin_unlock(&sp->so_lock);  in nfs4_reclaim_open_state()
1469 		status = ops->recover_open(sp, state);  in nfs4_reclaim_open_state()
1486 				spin_lock(&sp->so_lock);  in nfs4_reclaim_open_state()
1507 				nfs4_state_mark_reclaim_nograce(sp->so_server->nfs_client, state);  in nfs4_reclaim_open_state()
1511 				nfs4_state_mark_reclaim_nograce(sp->so_server->nfs_client, state);  in nfs4_reclaim_open_state()
1520 		spin_lock(&sp->so_lock);  in nfs4_reclaim_open_state()
1523 	raw_write_seqcount_end(&sp->so_reclaim_seqcount);  in nfs4_reclaim_open_state()
1524 	spin_unlock(&sp->so_lock);  in nfs4_reclaim_open_state()
1528 	spin_lock(&sp->so_lock);  in nfs4_reclaim_open_state()
1529 	raw_write_seqcount_end(&sp->so_reclaim_seqcount);  in nfs4_reclaim_open_state()
1530 	spin_unlock(&sp->so_lock);  in nfs4_reclaim_open_state()
1554 	struct nfs4_state_owner *sp;  in nfs4_reset_seqids()  local
1562 		sp = rb_entry(pos, struct nfs4_state_owner, so_server_node);  in nfs4_reset_seqids()
1563 		sp->so_seqid.flags = 0;  in nfs4_reset_seqids()
1564 		spin_lock(&sp->so_lock);  in nfs4_reset_seqids()
1565 		list_for_each_entry(state, &sp->so_states, open_states) {  in nfs4_reset_seqids()
1569 		spin_unlock(&sp->so_lock);  in nfs4_reset_seqids()
1604 	struct nfs4_state_owner *sp;  in nfs4_clear_reclaim_server()  local
1612 		sp = rb_entry(pos, struct nfs4_state_owner, so_server_node);  in nfs4_clear_reclaim_server()
1613 		spin_lock(&sp->so_lock);  in nfs4_clear_reclaim_server()
1614 		list_for_each_entry(state, &sp->so_states, open_states) {  in nfs4_clear_reclaim_server()
1620 		spin_unlock(&sp->so_lock);  in nfs4_clear_reclaim_server()
1710 	struct nfs4_state_owner *sp;  in nfs4_do_reclaim()  local
1723 			sp = rb_entry(pos,  in nfs4_do_reclaim()
1726 							&sp->so_flags))  in nfs4_do_reclaim()
1728 			if (!atomic_inc_not_zero(&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()