From b3242151906372f30f57feaa43b4cac96a23edb1 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <dada1@cosmosbay.com>
Date: Wed, 6 Feb 2008 01:37:01 -0800
Subject: PERCPU : __percpu_alloc_mask() can dynamically size percpu_data
storage
Instead of allocating a fix sized array of NR_CPUS pointers for percpu_data,
we can use nr_cpu_ids, which is generally < NR_CPUS.
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
mm/allocpercpu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'mm')
diff --git a/mm/allocpercpu.c b/mm/allocpercpu.c
index 00b02623f00..7e58322b713 100644
--- a/mm/allocpercpu.c
+++ b/mm/allocpercpu.c
@@ -98,7 +98,7 @@ EXPORT_SYMBOL_GPL(__percpu_populate_mask);
*/
void *__percpu_alloc_mask(size_t size, gfp_t gfp, cpumask_t *mask)
{
- void *pdata = kzalloc(sizeof(struct percpu_data), gfp);
+ void *pdata = kzalloc(nr_cpu_ids * sizeof(void *), gfp);
void *__pdata = __percpu_disguise(pdata);
if (unlikely(!pdata))
--
cgit