diff options
| author | Alexandros Batsakis <batsakis@netapp.com> | 2009-12-14 21:27:53 -0800 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-12-15 13:51:17 -0500 |
| commit | 48f186124220794fce85ed1439fc32f16f69d3e2 (patch) | |
| tree | c200395b4238a19d6653b23a43537ac29b7b8cf4 | |
| parent | afe6c27ccb8cc31ce8ed0bd3589ce549f523c8e7 (diff) | |
rpc: add rpc_queue_empty function
Signed-off-by: Alexandros Batsakis <batsakis@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| -rw-r--r-- | include/linux/sunrpc/sched.h | 1 | ||||
| -rw-r--r-- | net/sunrpc/sched.c | 14 |
2 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h index 1906782ec86b..9157405f9320 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 cef74ba0666c..89ea8e69ec78 100644 --- a/net/sunrpc/sched.c +++ b/net/sunrpc/sched.c @@ -385,6 +385,20 @@ static void rpc_wake_up_task_queue_locked(struct rpc_wait_queue *queue, struct r } /* + * 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 */ void rpc_wake_up_queued_task(struct rpc_wait_queue *queue, struct rpc_task *task) |