linux-ext4 - Re: [PATCH v5.2 00/14] crc32c: Add faster algorithm and self-test code

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Message-ID: <20111203110049.GA31151@gondor.apana.org.au>
Date:	Sat, 3 Dec 2011 19:00:50 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	"Darrick J. Wong" <djwong@...ibm.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Theodore Tso <tytso@....edu>,
	Joakim Tjernlund <joakim.tjernlund@...nsmode.se>,
	Bob Pearson <rpearson@...temfabricworks.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Andreas Dilger <adilger.kernel@...ger.ca>,
	linux-crypto <linux-crypto@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	Mingming Cao <cmm@...ibm.com>, linux-ext4@...r.kernel.org
Subject: Re: [PATCH v5.2 00/14] crc32c: Add faster algorithm and self-test
	code

On Fri, Dec 02, 2011 at 06:30:37PM -0800, Darrick J. Wong wrote:
> On Fri, Dec 02, 2011 at 08:23:58AM +0800, Herbert Xu wrote:
> > On Thu, Dec 01, 2011 at 12:31:22PM -0800, Darrick J. Wong wrote:
> > .
> > > They seem to call crc32c(), which is in crypto/crc32c.  If you're interested in
> > 
> > Nope, the crypto API layer will use the SSE implementation
> > where available.  Only when it isn't available will the C version
> > in crypto/ be used.
> 
> There's a SSE version other than what's in crc32c-intel?

crc32c-intel is what I meant.  My point is that it'll be used
automatically.

Cheers,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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