On Tue, 10 Dec 2013, Ethan Zhao wrote: > No, stable 3.12.4 and 3.12.3 need this patch. 3.13RC doesn't > need it anymore.
Hmmm.. Then this commit may have fixed it: commit 0172f779e4314639a8ed440082cfe9e3450954e8 Author: Joonsoo Kim <iamjoonsoo....@lge.com> Date: Wed Oct 30 19:04:00 2013 +0900 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....@lge.com> Signed-off-by: Pekka Enberg <penb...@iki.fi> diff --git a/mm/slab.c b/mm/slab.c index af2db76..a8a9349 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -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 { -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/