From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from szxga02-in.huawei.com ([119.145.14.65]:4300 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753166Ab3A1Hi0 (ORCPT ); Mon, 28 Jan 2013 02:38:26 -0500 Message-ID: <51062ADA.6080903@huawei.com> Date: Mon, 28 Jan 2013 15:38:02 +0800 From: Jiang Liu MIME-Version: 1.0 To: Yinghai Lu CC: Bjorn Helgaas , Gu Zheng , Lin Feng , , , , , , , Don Dutile , Greg Kroah-Hartman Subject: Re: [PATCH] pci-sysfs: replace mutex_lock with mutex_trylock to avoid potential deadlock situation References: <1356594177-29453-1-git-send-email-linfeng@cn.fujitsu.com> <5102583E.4030109@cn.fujitsu.com> In-Reply-To: Content-Type: text/plain; charset="ISO-8859-1" Sender: linux-pci-owner@vger.kernel.org List-ID: Hi all, I have worked out a draft patch set to serialize hotplug operations, but encountered some obstacles when dealing with PCI root buses. I will try to rebase the patch set onto "PCI: Iterate pci host bridge instead of pci root bus" from Yinghai. And also need to fix bugs reported by Lin Feng too. Regards! Gerry On 2013-1-26 4:59, Yinghai Lu wrote: > On Fri, Jan 25, 2013 at 12:30 PM, Bjorn Helgaas wrote: > >> If we're going to fix the sysfs deadlock (and we should), I want to >> either see an argument for why we don't have a problem outside of >> sysfs, or I want to fix sysfs and non-sysfs at the same time. > > Sure. > > Jiang should have one patches to address that? > > Yinghai > >