linux-kernel - [PATCH 1/1] sched: Reduce stack size in isolated_cpu

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Message-ID: <486A6A42.5050606@sgi.com>
Date:	Tue, 01 Jul 2008 10:32:50 -0700
From:	Mike Travis <travis@....com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/1] sched: Reduce stack size in isolated_cpu_setup()

Subject: sched: Reduce stack size in isolated_cpu_setup()

  * Remove 16k stack requirements in isolated_cpu_setup when NR_CPUS=4096.

(Somehow this patch was misplaced from some months back.)

Based on linux-2.6.tip/master

Signed-off-by: Mike Travis <travis@....com>
---
 kernel/sched.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- linux-2.6.tip.orig/kernel/sched.c
+++ linux-2.6.tip/kernel/sched.c
@@ -6739,7 +6739,8 @@ static cpumask_t cpu_isolated_map = CPU_
 /* Setup the mask of cpus configured for isolated domains */
 static int __init isolated_cpu_setup(char *str)
 {
-	int ints[NR_CPUS], i;
+	static int __initdata ints[NR_CPUS];
+	int i;
 
 	str = get_options(str, ARRAY_SIZE(ints), ints);
 	cpus_clear(cpu_isolated_map);
--
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