From: Christoph Hellwig Subject: Re: [PATCH 3/3] Add timeout feature Date: Mon, 29 Sep 2008 10:13:26 -0400 Message-ID: <20080929141326.GA31781@infradead.org> References: <20080908205337t-sato@mail.jp.nec.com> <20080908171119.GB22521@infradead.org> <48DBFD42.6030307@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Ric Wheeler , Christoph Hellwig , Andrew Morton , Oleg Nesterov , linux-fsdevel@vger.kernel.org, dm-devel@redhat.com, viro@ZenIV.linux.org.uk, linux-ext4@vger.kernel.org, xfs@oss.sgi.com, axboe@kernel.dk, mtk.manpages@googlemail.com, linux-kernel@vger.kernel.org To: Takashi Sato Return-path: Received: from bombadil.infradead.org ([18.85.46.34]:48132 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751483AbYI2ONk (ORCPT ); Mon, 29 Sep 2008 10:13:40 -0400 Content-Disposition: inline In-Reply-To: Sender: linux-ext4-owner@vger.kernel.org List-ID: On Fri, Sep 26, 2008 at 05:52:35PM +0900, Takashi Sato wrote: > I think that your concern is that the freezer cannot recognize the occurrence > of a timeout and it continues the backup process and the backup data is > corrupted finally. What timeout should happen? the freeze ioctl must not return until the filesystem is a clean state and all writes are blocked.