From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932697AbcHJDzq (ORCPT ); Tue, 9 Aug 2016 23:55:46 -0400 Received: from mail-yw0-f193.google.com ([209.85.161.193]:33212 "EHLO mail-yw0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932567AbcHJDzp (ORCPT ); Tue, 9 Aug 2016 23:55:45 -0400 Date: Tue, 9 Aug 2016 23:55:42 -0400 From: Tejun Heo To: Roman Pen Cc: Akinobu Mita , Jens Axboe , Christoph Hellwig , linux-block@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 1/1] blk-mq: fix hang caused by freeze/unfreeze sequence Message-ID: <20160810035542.GE25053@mtj.duckdns.org> References: <20160808113908.5445-1-roman.penyaev@profitbricks.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160808113908.5445-1-roman.penyaev@profitbricks.com> User-Agent: Mutt/1.6.2 (2016-07-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, On Mon, Aug 08, 2016 at 01:39:08PM +0200, Roman Pen wrote: > Long time ago there was a similar fix proposed by Akinobu Mita[1], > but it seems that time everyone decided to fix this subtle race in > percpu-refcount and Tejun Heo[2] did an attempt (as I can see that > patchset was not applied). So, I probably forgot about it while waiting for confirmation of fix. Can you please verify that the patchset fixes the issue? I can apply the patchset right away. Thanks. -- tejun