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 8348D6B0038 for ; Mon, 21 Jul 2014 07:47:33 -0400 (EDT) Received: by mail-pa0-f42.google.com with SMTP id lf10so9680531pab.15 for ; Mon, 21 Jul 2014 04:47:33 -0700 (PDT) Received: from mx2.parallels.com (mx2.parallels.com. [199.115.105.18]) by mx.google.com with ESMTPS id ok13si7018822pdb.134.2014.07.21.04.47.31 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 21 Jul 2014 04:47:31 -0700 (PDT) From: Vladimir Davydov Subject: [PATCH -mm 0/6] memcg: release memcg_cache_id on css offline Date: Mon, 21 Jul 2014 15:47:10 +0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain Sender: owner-linux-mm@kvack.org List-ID: To: akpm@linux-foundation.org Cc: mhocko@suse.cz, hannes@cmpxchg.org, cl@linux.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Hi, Currently memcg_cache_id (mem_cgroup->kmemcg_id), which is used for indexing memcg_caches arrays, is released only on css free. As a result, offline css, whose number is actually limited only by amount of free RAM, will occupy slots in these arrays making them grow larger and larger even if there's only a few kmem active memory cgroups out there. This patch set makes memcg release memcg_cache_id on css offline. This way the memcg_caches arrays size will be limited by the number of alive kmem-active memory cgroups, which is much better. The work is actually done in patch 6 while patches 1-5 only prepare memcg and slab subsystems to this change. Thanks, Vladimir Davydov (6): slub: remove kmemcg id from create_unique_id slab: use mem_cgroup_id for per memcg cache naming memcg: make memcg_cache_id static memcg: add pointer to owner cache to memcg_cache_params memcg: keep all children of each root cache on a list memcg: release memcg_cache_id on css offline include/linux/memcontrol.h | 9 +--- include/linux/slab.h | 7 ++- mm/memcontrol.c | 112 +++++++++++++++++++++++++++----------------- mm/slab.c | 40 +++++++++------- mm/slab_common.c | 44 ++++++++--------- mm/slub.c | 45 +++++++++--------- 6 files changed, 140 insertions(+), 117 deletions(-) -- 1.7.10.4 -- 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