diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h index 1906782ec86bc6b668998e17bc3a68d6c244a334..9157405f93201c4dc33c0ef54428056ad997996f 100644 --- a/include/linux/sunrpc/sched.h +++ b/include/linux/sunrpc/sched.h @@ -229,6 +229,7 @@ void rpc_wake_up_queued_task(struct rpc_wait_queue *, void rpc_wake_up(struct rpc_wait_queue *); struct rpc_task *rpc_wake_up_next(struct rpc_wait_queue *); void rpc_wake_up_status(struct rpc_wait_queue *, int); +int rpc_queue_empty(struct rpc_wait_queue *); void rpc_delay(struct rpc_task *, unsigned long); void * rpc_malloc(struct rpc_task *, size_t); void rpc_free(void *); diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c index cef74ba0666c2c7cab9a755a29c8ce5985a5dde7..89ea8e69ec78994e1fc568c0bd87a0f1ceb52cd5 100644 --- a/net/sunrpc/sched.c +++ b/net/sunrpc/sched.c @@ -384,6 +384,20 @@ static void rpc_wake_up_task_queue_locked(struct rpc_wait_queue *queue, struct r __rpc_do_wake_up_task(queue, task); } +/* + * Tests whether rpc queue is empty + */ +int rpc_queue_empty(struct rpc_wait_queue *queue) +{ + int res; + + spin_lock_bh(&queue->lock); + res = queue->qlen; + spin_unlock_bh(&queue->lock); + return (res == 0); +} +EXPORT_SYMBOL_GPL(rpc_queue_empty); + /* * Wake up a task on a specific queue */