From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f42.google.com (mail-pa0-f42.google.com [209.85.220.42]) by kanga.kvack.org (Postfix) with ESMTP id 5AB096B0255 for ; Tue, 1 Mar 2016 06:13:27 -0500 (EST) Received: by mail-pa0-f42.google.com with SMTP id bj10so41425167pad.2 for ; Tue, 01 Mar 2016 03:13:27 -0800 (PST) Received: from mx2.parallels.com (mx2.parallels.com. [199.115.105.18]) by mx.google.com with ESMTPS id rf10si4693337pab.213.2016.03.01.03.13.26 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 01 Mar 2016 03:13:26 -0800 (PST) From: Vladimir Davydov Subject: [PATCH 1/2] mm: memcontrol: cleanup css_reset callback Date: Tue, 1 Mar 2016 14:13:12 +0300 Message-ID: <69629961aefc48c021b895bb0c8297b56c11a577.1456830735.git.vdavydov@virtuozzo.com> MIME-Version: 1.0 Content-Type: text/plain Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Tejun Heo , Johannes Weiner , Michal Hocko , cgroups@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org - Do not take memcg_limit_mutex for resetting limits - the cgroup cannot be altered from userspace anymore, so no need to protect them. - Use plain page_counter_limit() for resetting ->memory and ->memsw limits instead of mem_cgrouop_resize_* helpers - we enlarge the limits, so no need in special handling. - Reset ->swap and ->tcpmem limits as well. Signed-off-by: Vladimir Davydov --- mm/memcontrol.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index ae8b81c55685..8615b066b642 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -4257,9 +4257,11 @@ static void mem_cgroup_css_reset(struct cgroup_subsys_state *css) { struct mem_cgroup *memcg = mem_cgroup_from_css(css); - mem_cgroup_resize_limit(memcg, PAGE_COUNTER_MAX); - mem_cgroup_resize_memsw_limit(memcg, PAGE_COUNTER_MAX); - memcg_update_kmem_limit(memcg, PAGE_COUNTER_MAX); + page_counter_limit(&memcg->memory, PAGE_COUNTER_MAX); + page_counter_limit(&memcg->swap, PAGE_COUNTER_MAX); + page_counter_limit(&memcg->memsw, PAGE_COUNTER_MAX); + page_counter_limit(&memcg->kmem, PAGE_COUNTER_MAX); + page_counter_limit(&memcg->tcpmem, PAGE_COUNTER_MAX); memcg->low = 0; memcg->high = PAGE_COUNTER_MAX; memcg->soft_limit = PAGE_COUNTER_MAX; -- 2.1.4 -- 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/ . Don't email: email@kvack.org