From: Trond Myklebust <trondmy@gmail.com>
Date: Sun, 7 Apr 2019 17:58:52 +0000 (-0400)
Subject: SUNRPC: Declare RPC timers as TIMER_DEFERRABLE
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=431235818bc3;p=openwrt%2Fstaging%2Fblogic.git

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: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
---

diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index 301e0f7f1dc9..1a12fb03e611 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -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);
 }
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 7c3623b17493..36af1a1929af 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -1842,7 +1842,9 @@ found:
 		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);