From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45383) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UzDyD-00076M-Bt for qemu-devel@nongnu.org; Tue, 16 Jul 2013 18:43:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UzDyC-0008SJ-Hv for qemu-devel@nongnu.org; Tue, 16 Jul 2013 18:43:45 -0400 Received: from nodalink.pck.nerim.net ([62.212.105.220]:44688 helo=paradis.irqsave.net) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UzDyC-0008S6-88 for qemu-devel@nongnu.org; Tue, 16 Jul 2013 18:43:44 -0400 Date: Wed, 17 Jul 2013 00:45:30 +0200 From: =?iso-8859-1?Q?Beno=EEt?= Canet Message-ID: <20130716224530.GB5102@irqsave.net> References: <1371738392-9594-1-git-send-email-benoit@irqsave.net> <1371738392-9594-2-git-send-email-benoit@irqsave.net> <20130702144224.GF9870@stefanha-thinkpad.redhat.com> <20130702212355.GB4985@irqsave.net> <20130703081235.GD16585@stefanha-thinkpad.muc.redhat.com> <20130703125327.GC5482@irqsave.net> <20130704071300.GA2584@stefanha-thinkpad.redhat.com> <20130704100128.GA5429@irqsave.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <20130704100128.GA5429@irqsave.net> Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] [RFC V8 01/24] qcow2: Add journal specification. List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: =?iso-8859-1?Q?Beno=EEt?= Canet Cc: kwolf@redhat.com, qemu-devel@nongnu.org, Stefan Hajnoczi > > Simple is good. Even for deduplication alone, I think data integrity= is > > critical - otherwise we risk stale dedup metadata pointing to cluster= s > > that are unallocated or do not contain the right data. So the journa= l > > will probably need to follow techniques for commits/checksums. > I'll add checksums to the journal and clean the journal entry size mess s= oon. For the transactional/commits aspect of the journal I think that we need = Kevin's point of view on the subject. Best regards Beno=EEt