Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754450Ab2JKNjG (ORCPT ); Thu, 11 Oct 2012 09:39:06 -0400 Received: from cantor2.suse.de ([195.135.220.15]:57554 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752652Ab2JKNjC (ORCPT ); Thu, 11 Oct 2012 09:39:02 -0400 Date: Thu, 11 Oct 2012 15:38:56 +0200 From: Michal Hocko To: Glauber Costa Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Andrew Morton , Mel Gorman , Suleiman Souhlal , Tejun Heo , cgroups@vger.kernel.org, kamezawa.hiroyu@jp.fujitsu.com, Johannes Weiner , Greg Thelen , devel@openvz.org, Frederic Weisbecker Subject: Re: [PATCH v4 04/14] kmem accounting basic infrastructure Message-ID: <20121011133855.GG29295@dhcp22.suse.cz> References: <1349690780-15988-1-git-send-email-glommer@parallels.com> <1349690780-15988-5-git-send-email-glommer@parallels.com> <20121011101119.GB29295@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20121011101119.GB29295@dhcp22.suse.cz> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 807 Lines: 21 On Thu 11-10-12 12:11:19, Michal Hocko wrote: > On Mon 08-10-12 14:06:10, Glauber Costa wrote: > > + cgroup_lock(); > > + mutex_lock(&set_limit_mutex); > > + if (!memcg->kmem_accounted && val != RESOURCE_MAX) { > > Just a nit but wouldn't memcg_kmem_is_accounted(memcg) be better than > directly checking kmem_accounted? OK, I see that jump lable patch changes this and we set activated inside the conditional so kmem_accounted check catches both flags. That could be changed to memcg_kmem_is_activated in that patch but what ever. -- Michal Hocko SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/