From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752537Ab0EANBp (ORCPT ); Sat, 1 May 2010 09:01:45 -0400 Received: from lennier.cc.vt.edu ([198.82.162.213]:42088 "EHLO lennier.cc.vt.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750772Ab0EANBo (ORCPT ); Sat, 1 May 2010 09:01:44 -0400 X-Mailer: exmh version 2.7.2 01/07/2005 with nmh-1.2 To: Kent Overstreet Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/3] Bcache: version 4 In-Reply-To: Your message of "Fri, 30 Apr 2010 16:12:13 -0800." <20100501001212.GA31135@moria> From: Valdis.Kletnieks@vt.edu References: <20100501001212.GA31135@moria> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1272718901_4236P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Sat, 01 May 2010 09:01:41 -0400 Message-ID: <63479.1272718901@localhost> X-Mirapoint-Received-SPF: 128.173.34.98 localhost Valdis.Kletnieks@vt.edu 2 pass X-Mirapoint-IP-Reputation: reputation=neutral-1, source=Fixed, refid=n/a, actions=MAILHURDLE SPF TAG X-Junkmail-Info: (45) HELO_LOCALHOST X-Junkmail-Status: score=45/50, host=dagger.cc.vt.edu X-Junkmail-SD-Raw: score=unknown, refid=str=0001.0A020203.4BDC2636.01D2,ss=1,fgs=0, ip=0.0.0.0, so=2009-09-22 00:05:22, dmn=2009-09-10 00:05:08, mode=multiengine X-Junkmail-IWF: false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --==_Exmh_1272718901_4236P Content-Type: text/plain; charset=us-ascii On Fri, 30 Apr 2010 16:12:13 -0800, Kent Overstreet said: > Most of the basic functionality is now there; the most visible thing is > it's now correctly saving all the metadata, so you can unload a cache > and then reload it, and everything will still be there. If you unload a cache and then reload it, what prevents it from serving up now-stale data from an extent that was modified while the cache was unloaded? (Telling me "Get some caffeine, it's about halfway down in patch 2" or "We'll add that in Version 6 of the patch" are both acceptable answers" :) --==_Exmh_1272718901_4236P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQFL3CY1cC3lWbTT17ARAuppAKD9g/uL+6+Wh7omfN85jBWgfnSzLQCgsaf9 efKRmfVYeKzDGut04Zm6A58= =7v/d -----END PGP SIGNATURE----- --==_Exmh_1272718901_4236P--