From: "David S. Miller" <davem@davemloft.net>
To: herbert@gondor.apana.org.au
Cc: johnpol@2ka.mipt.ru, jmorris@redhat.com,
linux-crypto@vger.kernel.org, netdev@oss.sgi.com
Subject: Re: [RFC] Replace scatterlist with crypto_frag
Date: Mon, 06 Jun 2005 15:36:02 -0700 (PDT) [thread overview]
Message-ID: <20050606.153602.23015220.davem@davemloft.net> (raw)
In-Reply-To: <20050604103249.GA1378@gondor.apana.org.au>
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Sat, 4 Jun 2005 20:32:49 +1000
> On Sat, Jun 04, 2005 at 02:29:39PM +0400, Evgeniy Polyakov wrote:
> >
> > But without sg we sill save 4*sizeof(dma addr) - is it really a price?
>
> We're also reducing the offset/length to 16 bits from 32 bits so we're
> shaving off half the size.
Note, it is still going to be a 16 byte structure on 64-bit
machines. This is mainly due to the 8-byte alignment needed
by the page pointer.
I'm not objecting to your ideas, just mentioning this fact...
I am also puzzled as to where the "4" came from :-)
next prev parent reply other threads:[~2005-06-06 22:36 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-03 23:46 [RFC] Replace scatterlist with crypto_frag Herbert Xu
2005-06-04 0:02 ` Jeff Garzik
2005-06-04 0:42 ` Herbert Xu
2005-06-04 4:39 ` James Morris
2005-06-04 4:51 ` Herbert Xu
2005-06-04 5:23 ` James Morris
2005-06-04 5:33 ` Herbert Xu
2005-06-04 10:00 ` Evgeniy Polyakov
2005-06-04 9:55 ` Evgeniy Polyakov
2005-06-04 9:58 ` Herbert Xu
2005-06-04 10:17 ` Evgeniy Polyakov
2005-06-04 10:22 ` Herbert Xu
2005-06-04 10:29 ` Evgeniy Polyakov
2005-06-04 10:32 ` Herbert Xu
2005-06-04 10:40 ` Evgeniy Polyakov
2005-06-06 22:36 ` David S. Miller [this message]
2005-06-04 11:23 ` Christoph Hellwig
2005-06-04 11:26 ` Herbert Xu
2005-06-04 11:58 ` Christoph Hellwig
2005-06-06 11:59 ` Herbert Xu
2005-06-06 12:09 ` Christoph Hellwig
2005-06-06 12:40 ` Herbert Xu
2005-06-06 13:30 ` Christoph Hellwig
2005-06-06 22:46 ` David S. Miller
2005-06-06 23:04 ` Herbert Xu
2005-06-06 23:09 ` David S. Miller
2005-06-06 23:14 ` Herbert Xu
2005-06-06 23:18 ` David S. Miller
2005-06-06 23:20 ` Herbert Xu
2005-06-06 23:05 ` Jeff Garzik
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