linux-kernel - Re: [PATCH] tcp: splice as many packets as possible at once

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Message-Id: <20090113.161625.111759506.davem@davemloft.net>
Date:	Tue, 13 Jan 2009 16:16:25 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	zbr@...emap.net
Cc:	dada1@...mosbay.com, w@....eu, ben@...s.com, jarkao2@...il.com,
	mingo@...e.hu, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, jens.axboe@...cle.com
Subject: Re: [PATCH] tcp: splice as many packets as possible at once

From: Evgeniy Polyakov <zbr@...emap.net>
Date: Wed, 14 Jan 2009 03:13:45 +0300

> What is the best solution for the data corruption bug? To copy the data
> all the time or implement own allocator to be used in alloc_skb and
> friends to allocate the head? I think it can be done transparently for
> the drivers. I can volunteer for this :)
> The first one is more appropriate for the current bugfix-only stage,
> but this will result in the whole release being too slow.

I am looking into this right now.

I wish there were some way we could make this code grab and release a
reference to the SKB data area (I mean skb_shinfo(skb)->dataref) to
accomplish it's goals.
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