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slab: fix to calm down kmemleak warning 

After using struct page as slab management, we should not call
kmemleak_scan_area(), since struct page isn't the tracking object of
kmemleak. Without this patch and if CONFIG_DEBUG_KMEMLEAK is enabled,
so many kmemleak warnings are printed.

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
This commit is contained in:
Joonsoo Kim 2013-10-30 19:04:00 +09:00 committed by Pekka Enberg
parent e7444d9b7d
commit 0172f779e4
1 changed files with 0 additions and 8 deletions
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8
mm/slab.c
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@ -2531,14 +2531,6 @@ static struct freelist *alloc_slabmgmt(struct kmem_cache *cachep,
/* Slab management obj is off-slab. */
freelist = kmem_cache_alloc_node(cachep->freelist_cache,
local_flags, nodeid);
/*
* If the first object in the slab is leaked (it's allocated
* but no one has a reference to it), we want to make sure
* kmemleak does not treat the ->s_mem pointer as a reference
* to the object. Otherwise we will not report the leak.
*/
kmemleak_scan_area(&page->lru, sizeof(struct list_head),
local_flags);
if (!freelist)
return NULL;
} else {