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rpc: add rpc_queue_empty function

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Signed-off-by: Alexandros Batsakis <[email protected]>
Signed-off-by: Trond Myklebust <[email protected]>
This commit is contained in:
Alexandros Batsakis 2009-12-14 21:27:53 -08:00 • committed by Trond Myklebust
commit 48f1861242
2 changed files with 15 additions and 0 deletions
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14
net/sunrpc/sched.c
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@ -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
*/