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Re: pte_pagenr/MAP_NR deleted in pre6
- To: "David S. Miller" <davem@redhat.com>
- Subject: Re: pte_pagenr/MAP_NR deleted in pre6
- From: "Stephen C. Tweedie" <sct@redhat.com>
- Date: Wed, 16 Aug 2000 20:30:32 +0100
- Cc: kanoj@google.engr.sgi.com, sct@redhat.com, roman@augan.com, linux-mm@kvack.org, linux-kernel@vger.rutgers.edu, rmk@arm.linux.org.uk, nico@cam.org, davidm@hpl.hp.com, alan@lxorguk.ukuu.org.uk
- In-Reply-To: <200008161839.LAA09544@pizda.ninka.net>; from davem@redhat.com on Wed, Aug 16, 2000 at 11:39:17AM -0700
- References: <200008161847.LAA84163@google.engr.sgi.com> <200008161839.LAA09544@pizda.ninka.net>
- Sender: owner-linux-mm@kvack.org
- User-Agent: Mutt/1.2i
Hi,
On Wed, Aug 16, 2000 at 11:39:17AM -0700, David S. Miller wrote:
>
> I guess finally, drivers will either get one or a list of
>
> 1. struct page or
>
> Make this "struct page and offset", a page is not enough by itself to
> indicate all the necessary information, you need an offset within the
> page as well.
That's exactly what a kiobuf is --- a vector of struct page *s, plus
an arbitrary offset and length.
--Stephen
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