From d366f8cbc16882e93538d9a52423c2f50dad7c06 Mon Sep 17 00:00:00 2001
From: Mike Travis <travis@sgi.com>
Date: Fri, 4 Apr 2008 18:11:12 -0700
Subject: cpumask: Cleanup more uses of CPU_MASK and NODE_MASK
* Replace usages of CPU_MASK_NONE, CPU_MASK_ALL, NODE_MASK_NONE,
NODE_MASK_ALL to reduce stack requirements for large NR_CPUS
and MAXNODES counts.
* In some cases, the cpumask variable was initialized but then overwritten
with another value. This is the case for changes like this:
- cpumask_t oldmask = CPU_MASK_ALL;
+ cpumask_t oldmask;
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
mm/allocpercpu.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'mm')
diff --git a/mm/allocpercpu.c b/mm/allocpercpu.c
index b0012e27fea8..f4026bae6eed 100644
--- a/mm/allocpercpu.c
+++ b/mm/allocpercpu.c
@@ -82,9 +82,10 @@ EXPORT_SYMBOL_GPL(percpu_populate);
int __percpu_populate_mask(void *__pdata, size_t size, gfp_t gfp,
cpumask_t *mask)
{
- cpumask_t populated = CPU_MASK_NONE;
+ cpumask_t populated;
int cpu;
+ cpus_clear(populated);
for_each_cpu_mask(cpu, *mask)
if (unlikely(!percpu_populate(__pdata, size, gfp, cpu))) {
__percpu_depopulate_mask(__pdata, &populated);
--
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