From: Hyoungho Choi <holuyaa@gmail.com>
To: Christoph Lameter <cl@linux.com>,
Pekka Enberg <penberg@kernel.org>,
David Rientjes <rientjes@google.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, Hyoungho Choi <holuyaa@gmail.com>
Subject: [PATCH] slub: remove loop redundancy in mm/slub.c
Date: Sat, 12 Jul 2014 10:09:10 +0900 [thread overview]
Message-ID: <1405127350-13863-1-git-send-email-holuyaa@gmail.com> (raw)
set_freepointer() is invoked twice for first object at new_slab().
Remove it.
Signed-off-by: Hyoungho Choi <holuyaa@gmail.com>
---
mm/slub.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/slub.c b/mm/slub.c
index 7300480..f6d0327 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1433,7 +1433,7 @@ static struct page *new_slab(struct kmem_cache *s, gfp_t flags, int node)
memset(start, POISON_INUSE, PAGE_SIZE << order);
last = start;
- for_each_object(p, s, start, page->objects) {
+ for_each_object(p, s, start + s->size, page->objects - 1) {
setup_object(s, page, last);
set_freepointer(s, last, p);
last = p;
--
2.0.1
--
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next reply other threads:[~2014-07-12 1:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-12 1:09 Hyoungho Choi [this message]
2014-07-14 7:06 ` [PATCH] slub: remove loop redundancy in mm/slub.c Joonsoo Kim
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