From: "H. Peter Anvin" <hpa@zytor.com>
To: Dan Williams <dan.j.williams@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>,
chris.mason@oracle.com, linux-btrfs@vger.kernel.org,
neilb@suse.de, linux-raid@vger.kernel.org
Subject: Re: [PATCH 1/4] md: Factor out RAID6 algorithms into lib/
Date: Thu, 16 Jul 2009 13:38:24 -0400 [thread overview]
Message-ID: <4A5F6590.9000006@zytor.com> (raw)
In-Reply-To: <e9c3a7c20907151223j1d976ea9gdd224c9e6c2c36e3@mail.gmail.com>
Dan Williams wrote:
> On Mon, Jul 13, 2009 at 7:11 AM, David Woodhouse<dwmw2@infradead.org> wrote:
>> We'll want to use these in btrfs too.
>>
>> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
>
> Do you suspect that btrfs will also want to perform these operations
> asynchronously? I am preparing an updated release of the raid6
> offload patch kit, but the previous WIP release can be browsed at:
>
> http://git.kernel.org/?p=linux/kernel/git/djbw/async_tx.git;a=shortlog;h=raid6
>
> The routines are housed in crypto/async_tx/async_pq.c and
> crypto/async_tx/async_raid6_recov.c.
>
> I also wonder if the raid6 algos are a better fit under crypto/ alongside xor?
>
I am also sitting on a set of synchronous (CPU) acceleration patches for
RAID-6 recovery, just waiting for the APIs to stabilize.
-hpa
next prev parent reply other threads:[~2009-07-16 17:38 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-13 14:11 [PATCH 1/4] md: Factor out RAID6 algorithms into lib/ David Woodhouse
2009-07-15 19:23 ` Dan Williams
2009-07-15 20:16 ` Chris Mason
2009-07-15 22:11 ` Dan Williams
2009-07-16 17:38 ` H. Peter Anvin [this message]
2009-07-17 14:22 ` Ric Wheeler
2009-07-17 15:20 ` H. Peter Anvin
2009-07-17 15:35 ` Ric Wheeler
2009-07-17 15:40 ` H. Peter Anvin
2009-07-17 15:47 ` Ric Wheeler
2009-07-17 15:49 ` H. Peter Anvin
2009-07-17 15:58 ` Ric Wheeler
2009-07-17 18:59 ` Alex Elsayed
2009-07-17 19:02 ` Alex Elsayed
2009-07-29 18:16 ` H. Peter Anvin
2009-07-17 19:12 ` Gregory Maxwell
2009-07-18 11:53 ` David Woodhouse
2009-07-18 12:45 ` H. Peter Anvin
2009-07-18 18:50 ` Alex Elsayed
2009-07-18 18:52 ` Alex Elsayed
2009-07-29 18:20 ` H. Peter Anvin
2009-07-18 12:49 ` Ric Wheeler
2009-07-18 16:26 ` Dan Williams
2009-07-18 18:42 ` David Woodhouse
2009-07-18 20:04 ` Dan Williams
2009-07-19 18:04 ` David Woodhouse
2009-07-20 5:21 ` H. Peter Anvin
2009-07-17 15:51 ` H. Peter Anvin
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