From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx116.postini.com [74.125.245.116]) by kanga.kvack.org (Postfix) with SMTP id 9761F6B005C for ; Wed, 30 May 2012 08:34:15 -0400 (EDT) Received: by vbbey12 with SMTP id ey12so4200981vbb.14 for ; Wed, 30 May 2012 05:34:14 -0700 (PDT) Date: Wed, 30 May 2012 14:34:08 +0200 From: Frederic Weisbecker Subject: Re: [PATCH v3 16/28] memcg: kmem controller charge/uncharge infrastructure Message-ID: <20120530123406.GC25094@somewhere.redhat.com> References: <1337951028-3427-1-git-send-email-glommer@parallels.com> <1337951028-3427-17-git-send-email-glommer@parallels.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1337951028-3427-17-git-send-email-glommer@parallels.com> Sender: owner-linux-mm@kvack.org List-ID: To: Glauber Costa Cc: linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, linux-mm@kvack.org, kamezawa.hiroyu@jp.fujitsu.com, Tejun Heo , Li Zefan , Greg Thelen , Suleiman Souhlal , Michal Hocko , Johannes Weiner , devel@openvz.org, David Rientjes , Christoph Lameter , Pekka Enberg On Fri, May 25, 2012 at 05:03:36PM +0400, Glauber Costa wrote: > +bool __mem_cgroup_new_kmem_page(struct page *page, gfp_t gfp) > +{ > + struct mem_cgroup *memcg; > + struct page_cgroup *pc; > + bool ret = true; > + size_t size; > + struct task_struct *p; > + > + if (!current->mm || in_interrupt()) > + return true; > + > + rcu_read_lock(); > + p = rcu_dereference(current->mm->owner); > + memcg = mem_cgroup_from_task(p); So this takes the memcg of the group owner rather than the task? I understand why we want this for user memory, but for kernel? -- 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