From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: [PATCH 1/4] md: Factor out RAID6 algorithms into lib/ Date: Sun, 19 Jul 2009 22:21:36 -0700 Message-ID: <4A63FEE0.9090103@zytor.com> References: <1247494302.19180.268.camel@macbook.infradead.org> <4A608913.1060808@redhat.com> <4A6096A0.5050501@zytor.com> <4A609A52.7070506@redhat.com> <4A609B72.2010901@zytor.com> <4A609CFA.2060707@redhat.com> <4A609D8D.8050501@zytor.com> <1247918016.22313.138.camel@macbook.infradead.org> <1248026647.5646.36.camel@macbook.infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1248026647.5646.36.camel@macbook.infradead.org> Sender: linux-raid-owner@vger.kernel.org To: David Woodhouse Cc: Dan Williams , Ric Wheeler , chris.mason@oracle.com, linux-btrfs@vger.kernel.org, neilb@suse.de, linux-raid@vger.kernel.org List-Id: linux-raid.ids David Woodhouse wrote: > > At this point we've actually implemented the fundamental parts of > RAID[56] support in btrfs, and it's looking like all we really want is > the arithmetic routines. > Given that you have no legacy requirements, and that supporting more than two disks may be interesting, it may very well be worth spending some time at new codes now rather than later. Part of that investigation, though, is going to have to be if and how they can be accelerated. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.