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Commit 43123581 authored by Trond Myklebust's avatar Trond Myklebust Committed by Anna Schumaker
Browse files

SUNRPC: Declare RPC timers as TIMER_DEFERRABLE 



Don't wake idle CPUs only for the purpose of servicing an RPC
queue timeout.

Signed-off-by: default avatarTrond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: default avatarAnna Schumaker <Anna.Schumaker@Netapp.com>
parent 24a9d9a2

net/sunrpc/sched.c

+3 −1
Original line number Diff line number Diff line
@@ -249,7 +249,9 @@ static void __rpc_init_priority_wait_queue(struct rpc_wait_queue *queue, const c 
	queue->maxpriority = nr_queues - 1;

	rpc_reset_waitqueue_priority(queue);

	queue->qlen = 0;

	timer_setup(&queue->timer_list.timer, __rpc_queue_timer_fn, 0);

	timer_setup(&queue->timer_list.timer,

			__rpc_queue_timer_fn,

			TIMER_DEFERRABLE);

	INIT_LIST_HEAD(&queue->timer_list.list);

	rpc_assign_waitqueue_name(queue, qname);

}

net/sunrpc/xprt.c

+3 −1
Original line number Diff line number Diff line
@@ -1842,7 +1842,9 @@ struct rpc_xprt *xprt_create_transport(struct xprt_create *args) 
		xprt->idle_timeout = 0;

	INIT_WORK(&xprt->task_cleanup, xprt_autoclose);

	if (xprt_has_timer(xprt))

		timer_setup(&xprt->timer, xprt_init_autodisconnect, 0);

		timer_setup(&xprt->timer,

				xprt_init_autodisconnect,

				TIMER_DEFERRABLE);

	else

		timer_setup(&xprt->timer, NULL, 0);