From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx126.postini.com [74.125.245.126]) by kanga.kvack.org (Postfix) with SMTP id 9B5196B0006 for ; Tue, 12 Mar 2013 11:28:32 -0400 (EDT) Received: from dhcp-089-099-019-018.chello.nl ([89.99.19.18] helo=dyad.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.80.1 #2 (Red Hat Linux)) id 1UFR7u-0005iT-PF for linux-mm@kvack.org; Tue, 12 Mar 2013 15:28:31 +0000 Message-ID: <1363102105.24558.4.camel@laptop> Subject: Re: [PATCH] device: separate all subsys mutexes (was: Re: [BUG] potential deadlock led by cpu_hotplug lock (memcg involved)) From: Peter Zijlstra Date: Tue, 12 Mar 2013 16:28:25 +0100 In-Reply-To: <20130312130504.GD30758@dhcp22.suse.cz> References: <513ECCFE.3070201@huawei.com> <20130312101555.GB30758@dhcp22.suse.cz> <20130312110750.GC30758@dhcp22.suse.cz> <20130312130504.GD30758@dhcp22.suse.cz> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Michal Hocko Cc: Li Zefan , LKML , cgroups , linux-mm@kvack.org, KAMEZAWA Hiroyuki , Johannes Weiner , Andrew Morton , Jiri Kosina , Ingo Molnar , Kay Sievers , Greg Kroah-Hartman On Tue, 2013-03-12 at 14:05 +0100, Michal Hocko wrote: > @@ -111,17 +111,17 @@ struct bus_type { > struct iommu_ops *iommu_ops; > > struct subsys_private *p; > + struct lock_class_key __key; > }; Is struct bus_type constrained to static storage or can people go an allocate this stuff dynamically? If so, this patch is broken. -- 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