Commit a9352f72 authored May 07, 2020 by Paul E. McKenney

rcu: Priority-boost-related sleeps to idle priority



This commit converts the long-standing schedule_timeout_interruptible()
call used by RCU's priority-boosting kthreads to schedule_timeout_idle().
This conversion avoids polluting the load-average with RCU-related
sleeping.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

parent 77865dea

kernel/rcu/tree_plugin.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -1033,7 +1033,7 @@ static int rcu_boost_kthread(void *arg)
		if (spincnt > 10) {
		WRITE_ONCE(rnp->boost_kthread_status, RCU_KTHREAD_YIELDING);
		trace_rcu_utilization(TPS("End boost kthread@rcu_yield"));
		schedule_timeout_interruptible(2);
		schedule_timeout_idle(2);
		trace_rcu_utilization(TPS("Start boost kthread@rcu_yield"));
		spincnt = 0;
		}

Admin message