The following commit has been merged into the core/rcu branch of tip: Commit-ID: f5ca34643bbd84f514bdeee194c45dd1fb066ef2 Gitweb: https://git.kernel.org/tip/f5ca34643bbd84f514bdeee194c45dd1fb066ef2 Author: Paul E. McKenney <[email protected]> AuthorDate: Thu, 07 May 2020 16:36:10 -07:00 Committer: Paul E. McKenney <[email protected]> CommitterDate: Mon, 29 Jun 2020 11:58:50 -07:00
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 <[email protected]> --- 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 25296c1..982fc5b 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"));
