linux-kernel - Re: problems with e1000 and jumboframes

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Message-ID: <20060805103307.GB21184@gondor.apana.org.au>
Date:	Sat, 5 Aug 2006 20:33:07 +1000
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Evgeniy Polyakov <johnpol@....mipt.ru>
Cc:	Jesse Brandeburg <jesse.brandeburg@...il.com>,
	Chris Leech <chris.leech@...il.com>, arnd@...dnet.de,
	olel@....pl, linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: problems with e1000 and jumboframes

On Sat, Aug 05, 2006 at 02:24:36PM +0400, Evgeniy Polyakov wrote:
>
> > If we had a flag to indicate writability we could also have a flag to
> > indicate that the memory comes from kmalloc rather than alloc_page.
> 
> Yes, that would be good, but who will give us a bit in the struct page?
> Can we recreate frag_list elements to be a bitmasks and steal couple
> of them there, so we would not increase fragment's structure size?

I wasn't thinking of a bit in struct page, but rather a bit in skb_frag_t.

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