linux-kernel - [PATCH 1/1] [mm/slob] fix bug - when slob allocates "struct kmem

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Message-Id: <1209121041-30524-1-git-send-email-cooloney@kernel.org>
Date:	Fri, 25 Apr 2008 18:57:21 +0800
From:	Bryan Wu <cooloney@...nel.org>
To:	mpm@...enic.com, lethal@...ux-sh.org, linux-kernel@...r.kernel.org
Cc:	Yi Li <yi.li@...log.com>, Bryan Wu <cooloney@...nel.org>
Subject: [PATCH 1/1] [mm/slob] fix bug - when slob allocates "struct kmem_cache", it does not force alignment.

From: Yi Li <yi.li@...log.com>

This may trigger misaligned memory access exception.

Signed-off-by: Yi Li <yi.li@...log.com>
Signed-off-by: Bryan Wu <cooloney@...nel.org>
---
 mm/slob.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/mm/slob.c b/mm/slob.c
index e2c3c0e..6038cba 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -533,7 +533,8 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size,
 {
 	struct kmem_cache *c;

-	c = slob_alloc(sizeof(struct kmem_cache), flags, 0, -1);
+	c = slob_alloc(sizeof(struct kmem_cache),
+		flags, ARCH_KMALLOC_MINALIGN, -1);

 	if (c) {
 		c->name = name;
-- 
1.5.5
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