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.
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| @@ -2005,7 +2005,7 @@ static void nocb_gp_wait(struct rcu_data *my_rdp) · 2004 unmodified lines | ||
| 2005 | 2005 | /* Polling, so trace if first poll in the series. */ |
| 2006 | 2006 | if (gotcbs) |
| 2007 | 2007 | trace_rcu_nocb_wake(rcu_state.name, cpu, TPS("Poll")); |
| 2008 | − schedule_timeout_interruptible(1); | |
| 2008 | + schedule_timeout_idle(1); | |
| 2009 | 2009 | } else if (!needwait_gp) { |
| 2010 | 2010 | /* Wait for callbacks to appear. */ |
| 2011 | 2011 | trace_rcu_nocb_wake(rcu_state.name, cpu, TPS("Sleep")); |