From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755942AbXD0OzP (ORCPT ); Fri, 27 Apr 2007 10:55:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755958AbXD0OzP (ORCPT ); Fri, 27 Apr 2007 10:55:15 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:50698 "EHLO amd.ucw.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755942AbXD0OzN (ORCPT ); Fri, 27 Apr 2007 10:55:13 -0400 Date: Fri, 27 Apr 2007 16:55:07 +0200 From: Pavel Machek To: Pekka Enberg Cc: Linus Torvalds , Nigel Cunningham , LKML Subject: Re: Back to the future. Message-ID: <20070427145507.GP22250@elf.ucw.cz> References: <1177567481.5025.211.camel@nigel.suspend2.net> <84144f020704260028q190fc90fs8f9ea703e42e7910@mail.gmail.com> <1177573348.5025.224.camel@nigel.suspend2.net> <20070426224005.GA21926@elf.ucw.cz> <84144f020704262241s5bcfc043k55f9d60e368b3c9e@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <84144f020704262241s5bcfc043k55f9d60e368b3c9e@mail.gmail.com> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.11+cvs20060126 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri 2007-04-27 08:41:56, Pekka Enberg wrote: > On 4/27/07, Pavel Machek wrote: > >Now, it would be _very_ nice to be able to snapshot system and > >continue running, but I just don't see how to do it without extensive > >filesystem support. > > So what kind of support do we need from the filesystem? "forcedremount ro, not telling anyone, not killing processes" would do the trick. FS snapshots might do. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html