From f5ca34643bbd84f514bdeee194c45dd1fb066ef2 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Thu, 7 May 2020 16:36:10 -0700 Subject: rcu: No-CBs-related sleeps to idle priority This commit converts the schedule_timeout_interruptible() call used by RCU's no-CBs grace-period kthreads to schedule_timeout_idle(). This conversion avoids polluting the load-average with RCU-related sleeping. Signed-off-by: Paul E. McKenney --- kernel/rcu/tree_plugin.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h index 25296c17a30d..982fc5be5269 100644 --- a/kernel/rcu/tree_plugin.h +++ b/kernel/rcu/tree_plugin.h @@ -2005,7 +2005,7 @@ static void nocb_gp_wait(struct rcu_data *my_rdp) /* Polling, so trace if first poll in the series. */ if (gotcbs) trace_rcu_nocb_wake(rcu_state.name, cpu, TPS("Poll")); - schedule_timeout_interruptible(1); + schedule_timeout_idle(1); } else if (!needwait_gp) { /* Wait for callbacks to appear. */ trace_rcu_nocb_wake(rcu_state.name, cpu, TPS("Sleep")); -- cgit v1.2.3