From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755478AbbICMhr (ORCPT ); Thu, 3 Sep 2015 08:37:47 -0400 Received: from mga01.intel.com ([192.55.52.88]:14631 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754050AbbICMgJ (ORCPT ); Thu, 3 Sep 2015 08:36:09 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,461,1437462000"; d="scan'208";a="797418812" From: "Kirill A. Shutemov" To: Andrew Morton , Hugh Dickins Cc: Andrea Arcangeli , Dave Hansen , Vlastimil Babka , Johannes Weiner , Michal Hocko , David Rientjes , "Aneesh Kumar K.V" , linux-kernel@vger.kernel.org, linux-mm@kvack.org, "Kirill A. Shutemov" , Christoph Lameter Subject: [PATCHv5 2/7] slub: use page->rcu_head instead of page->lru plus cast Date: Thu, 3 Sep 2015 15:35:53 +0300 Message-Id: <1441283758-92774-3-git-send-email-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1441283758-92774-1-git-send-email-kirill.shutemov@linux.intel.com> References: <1441283758-92774-1-git-send-email-kirill.shutemov@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We have properly typed page->rcu_head, no need to cast page->lru. Signed-off-by: Kirill A. Shutemov Cc: Christoph Lameter --- mm/slub.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 816df0016555..869642d03b22 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1510,10 +1510,7 @@ static void free_slab(struct kmem_cache *s, struct page *page) VM_BUG_ON(s->reserved != sizeof(*head)); head = page_address(page) + offset; } else { - /* - * RCU free overloads the RCU head over the LRU - */ - head = (void *)&page->lru; + head = &page->rcu_head; } call_rcu(head, rcu_free_slab); -- 2.5.0