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Message-Id: <1297248275-23521-1-git-send-email-hannes@cmpxchg.org> Date: Wed, 9 Feb 2011 11:44:35 +0100 From: Johannes Weiner <hannes@...xchg.org> To: Andrew Morton <akpm@...ux-foundation.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>, Daisuke Nishimura <nishimura@....nes.nec.co.jp>, Balbir Singh <balbir@...ux.vnet.ibm.com>, <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org> Subject: [patch] memcg: charged pages always have valid per-memcg zone info 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 <hannes@...xchg.org> --- 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 from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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