From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758281AbYFDE6B (ORCPT ); Wed, 4 Jun 2008 00:58:01 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751802AbYFDE5v (ORCPT ); Wed, 4 Jun 2008 00:57:51 -0400 Received: from e28smtp04.in.ibm.com ([59.145.155.4]:42971 "EHLO e28smtp04.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751092AbYFDE5u (ORCPT ); Wed, 4 Jun 2008 00:57:50 -0400 Message-ID: <4846206E.2070507@linux.vnet.ibm.com> Date: Wed, 04 Jun 2008 10:26:14 +0530 From: Balbir Singh Reply-To: balbir@linux.vnet.ibm.com Organization: IBM User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: Matthew Wilcox CC: linux-fsdevel@vger.kernel.org, linux kernel mailing list Subject: Re: per_cpu_counter_sum lockdep warning References: <48460B94.8050000@linux.vnet.ibm.com> <20080604035954.GE3549@parisc-linux.org> In-Reply-To: <20080604035954.GE3549@parisc-linux.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > > Some percpu counters are supposed to be used from interrupt context. > These are created with percpu_counter_init_irq. Others are not and > should be created with percpu_counter_init. It seems like someone's > made a mess of that rule. This is likely to be a driver, IMO. Perhaps > you could work on tracking this down? > Sorry for the noise. It was patch I had applied on my tree, not yet in mainline. The explanation though did help me find and fix the problem. -- Warm Regards, Balbir Singh Linux Technology Center IBM, ISTL