linux-kernel - Re: [PATCH] sched.c: Be a bit more conservative in SMP

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Message-Id: <200609031910.57259.vincent.plr@wanadoo.fr>
Date:	Sun, 3 Sep 2006 19:10:56 +0200
From:	Vincent Pelletier <vincent.plr@...adoo.fr>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu
Subject: Re: [PATCH] sched.c: Be a bit more conservative in SMP

Forgot the signed-off-by line in previous mail. Reposting same patch just in 
case. CC to maintainer as advised in the FAQ.

Signed-off-by: Vincent Pelletier <vincent.plr@...adoo.fr>

--- linux-2.6-2.6.17/kernel/sched.c     2006-06-18 03:49:35.000000000 +0200
+++ linux-2.6-2.6.17-conservative/kernel/sched.c        2006-09-03
13:18:11.000000000 +0200
@@ -952,7 +952,7 @@ void kick_process(task_t *p)
 static inline unsigned long source_load(int cpu, int type)
 {
        runqueue_t *rq = cpu_rq(cpu);
-       unsigned long load_now = rq->nr_running * SCHED_LOAD_SCALE;
+       unsigned long load_now = (max(rq->nr_running - 1, 0)) *
SCHED_LOAD_SCALE;
        if (type == 0)
                return load_now;

-- 
VGER BF report: U 0.500348
-
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