From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail203.messagelabs.com (mail203.messagelabs.com [216.82.254.243]) by kanga.kvack.org (Postfix) with ESMTP id 810EA8D003A for ; Wed, 9 Feb 2011 05:44:51 -0500 (EST) From: Johannes Weiner Subject: [patch] memcg: charged pages always have valid per-memcg zone info Date: Wed, 9 Feb 2011 11:44:35 +0100 Message-Id: <1297248275-23521-1-git-send-email-hannes@cmpxchg.org> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: KAMEZAWA Hiroyuki , Daisuke Nishimura , Balbir Singh , linux-mm@kvack.org, linux-kernel@vger.kernel.org page_cgroup_zoneinfo() will never return NULL for a charged page, remove the check for it in mem_cgroup_get_reclaim_stat_from_page(). Signed-off-by: Johannes Weiner --- mm/memcontrol.c | 3 --- 1 files changed, 0 insertions(+), 3 deletions(-) Andrew, this is a follow-up to 'memcg: no uncharged pages reach page_cgroup_zoneinfo'. diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 686f1ce..6d007d6 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1017,9 +1017,6 @@ mem_cgroup_get_reclaim_stat_from_page(struct page *page) /* Ensure pc->mem_cgroup is visible after reading PCG_USED. */ smp_rmb(); mz = page_cgroup_zoneinfo(pc->mem_cgroup, page); - if (!mz) - return NULL; - return &mz->reclaim_stat; } -- 1.7.4 -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org