linux-kernel - Re: [PATCH 7/10] i386 sg: add support for chaining scatterlists

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Message-ID: <20070509102126.GA4819@gondor.apana.org.au>
Date:	Wed, 9 May 2007 20:21:26 +1000
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Jens Axboe <jens.axboe@...cle.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/10] i386 sg: add support for chaining scatterlists

On Wed, May 09, 2007 at 03:19:15AM -0700, Andrew Morton wrote:
>
> > BTW, the crypto layer's scatterlist already has a chaining mechanism
> > using the existing structure.  The only difference is that the chained
> > pointer is stored inside the 'struct page *' rather than a new pointer.
> 
> <greps-and-fails>
> 
> Which field in the page is it using?

Sorry, I was a bit unclear.  It's simply stored in the page field since
on a length == 0 entry we don't have a page at all.

Cheers,
-- 
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