From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f169.google.com (mail-pd0-f169.google.com [209.85.192.169]) by kanga.kvack.org (Postfix) with ESMTP id CEF856B0035 for ; Wed, 30 Oct 2013 06:03:52 -0400 (EDT) Received: by mail-pd0-f169.google.com with SMTP id q10so747020pdj.14 for ; Wed, 30 Oct 2013 03:03:52 -0700 (PDT) Received: from psmtp.com ([74.125.245.114]) by mx.google.com with SMTP id yh6si1430992pab.63.2013.10.30.03.03.47 for ; Wed, 30 Oct 2013 03:03:51 -0700 (PDT) From: Joonsoo Kim Subject: [PATCH v2 16/15] slab: fix to calm down kmemleak warning Date: Wed, 30 Oct 2013 19:04:00 +0900 Message-Id: <1383127441-30563-1-git-send-email-iamjoonsoo.kim@lge.com> In-Reply-To: <1381913052-23875-1-git-send-email-iamjoonsoo.kim@lge.com> References: <1381913052-23875-1-git-send-email-iamjoonsoo.kim@lge.com> Sender: owner-linux-mm@kvack.org List-ID: To: Pekka Enberg Cc: Christoph Lameter , Andrew Morton , Joonsoo Kim , David Rientjes , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Wanpeng Li , Joonsoo Kim 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 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 { -- 1.7.9.5 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org