From mboxrd@z Thu Jan  1 00:00:00 1970
From: Changli Gao <xiaosuo@gmail.com>
Subject: Re: [PATCH 1/2] af_packet: use vmalloc_to_page() instead for the
 addresss returned by vmalloc()
Date: Wed, 1 Dec 2010 21:05:54 +0800
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Cc: Eric Dumazet <eric.dumazet@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	Jiri Pirko <jpirko@redhat.com>, netdev@vger.kernel.org
To: Neil Horman <nhorman@tuxdriver.com>
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On Tue, Nov 30, 2010 at 10:37 PM, Neil Horman <nhorman@tuxdriver.com> w=
rote:
> Off the top of my head, I would think that pgv_to_page could be proto=
typed such
> that it could accept addr, offset and struct page ** arguments. =A0Th=
at way we can
> track the current page that we're mapped to, lowering the number of c=
alls to
> vmalloc_to_page, and we can still use an increment like we do above (=
as long as
> its wrapped in a subsequent call to pgv_to_page)

I'll try to optimize pgv_to_page() after this patch series merged. I
am planning to call vmalloc_to_page() previously, and cache its result
in a per pgv array for future use. Thanks.


--=20
Regards,
Changli Gao(xiaosuo@gmail.com)