linux-kernel - Re: [PATCH 1/2] sched: introduce avg

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Date:	Wed, 14 Jan 2009 14:20:08 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Mike Galbraith <efault@....de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] sched: introduce avg_wakeup

On Wed, 2009-01-14 at 13:05 +0100, Ingo Molnar wrote:

> mind sending a delta against the first submission? Whenever you are done 
> with the lunch stuff ;-)

Compile fix and cleanup, actually compile tested too :-)

---
Index: linux-2.6/kernel/sched.c
===================================================================
--- linux-2.6.orig/kernel/sched.c
+++ linux-2.6/kernel/sched.c
@@ -2415,14 +2415,16 @@ out_activate:
 	 * Only attribute actual wakeups done by this task.
 	 */
 	if (!in_interrupt()) {
+		struct sched_entity *se = &current->se;
 		u64 sample = se->sum_exec_runtime;
+
 		if (se->last_wakeup)
 			sample -= se->last_wakeup;
 		else
 			sample -= se->start_runtime;
 		update_avg(&se->avg_wakeup, sample);
 
-		current->se.last_wakeup = current->se.sum_exec_runtime;
+		se->last_wakeup = se->sum_exec_runtime;
 	}
 
 out_running:


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