From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dkim1.fusionio.com ([66.114.96.53]:54193 "EHLO dkim1.fusionio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757906Ab3HHPo4 (ORCPT ); Thu, 8 Aug 2013 11:44:56 -0400 Received: from mx1.fusionio.com (unknown [10.101.1.160]) by dkim1.fusionio.com (Postfix) with ESMTP id 4F57A7C06A3 for ; Thu, 8 Aug 2013 09:44:56 -0600 (MDT) Date: Thu, 8 Aug 2013 11:44:54 -0400 From: Josef Bacik To: Christoph Hellwig CC: Josef Bacik , Mark Fasheh , , , , Chris Mason , Andrew Vagin Subject: Re: [PATCH][RESEND] vfs: allow /proc/PID/maps to get device from stat Message-ID: <20130808154454.GF16712@localhost.localdomain> References: <20130807195718.GC31381@wotan.suse.de> <20130807201826.GA23804@infradead.org> <20130807205146.GE2397@localhost.localdomain> <20130808121349.GC5180@infradead.org> <20130808130207.GA16712@localhost.localdomain> <20130808134805.GB24181@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" In-Reply-To: <20130808134805.GB24181@infradead.org> Sender: linux-btrfs-owner@vger.kernel.org List-ID: On Thu, Aug 08, 2013 at 06:48:05AM -0700, Christoph Hellwig wrote: > On Thu, Aug 08, 2013 at 09:02:07AM -0400, Josef Bacik wrote: > > This won't work, try having 10000 subvolumes with dirty inodes and do sync then > > go skiing, you'll have time :). Thanks, > > Why would the dirty inodes make any difference? If you share the bdi > between the subvolumes the sync workflow should be exactly the same > still. > If we could dis-entangle vfsmounts from sb's and have it so you could have multiple vfsmounts with just one sb that would solve at least the in-kernel confusion, but I think we still have the userspace confusion. Thanks, Josef