netdev - Re: [PATCH v3] tcp: splice as many packets as possible at once

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Message-ID: <20090127071130.GA29125@gondor.apana.org.au>
Date:	Tue, 27 Jan 2009 18:11:30 +1100
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	David Miller <davem@...emloft.net>
Cc:	jarkao2@...il.com, zbr@...emap.net, w@....eu, dada1@...mosbay.com,
	ben@...s.com, mingo@...e.hu, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, jens.axboe@...cle.com
Subject: Re: [PATCH v3] tcp: splice as many packets as possible at once

David Miller <davem@...emloft.net> wrote:
> From: Jarek Poplawski <jarkao2@...il.com>
> Date: Thu, 22 Jan 2009 09:04:42 +0000
> 
>> It seems this sk_sndmsg_page usage (refcounting) isn't consistent.
>> I used here tcp_sndmsg() way, but I think I'll go back to this question
>> soon.
> 
> Indeed, it is something to look into, as well as locking.
> 
> I'll try to find some time for this, thanks Jarek.

After a quick look it seems to be OK to me.  The code in the patch
is called from tcp_splice_read, which holds the socket lock.  So as
long as the patch uses the usual TCP convention it should work.

Cheers,
-- 
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Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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