From: "David S. Miller" <davem@redhat.com>
To: grundler@puffin.external.hp.com
Cc: willy@debian.org, linux-mm@kvack.org,
parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Re: parisc scatterlist doesn't want page/offset
Date: Fri, 16 Nov 2001 08:57:54 -0800 (PST) [thread overview]
Message-ID: <20011116.085754.00483458.davem@redhat.com> (raw)
In-Reply-To: <200111161632.JAA25977@puffin.external.hp.com>
> I suggest you do this now, it is totally painless. I would almost
> classify it as a mindless edit.
Adding two members to a struct is not the problem.
The problem is revisiting every usage of ->address in the DMA code
and telling driver writers they should be using page+offset.
Note the "should", nobody forces them to use page+offset in
a driver and 2.4.x will NEVER require it. They just won't
be able to DMA highmem pages, that's all.
The DMA code is so simple to fix ("mindless edit" is still how I
classify it) and you have _THREE_ (count them, 3) platform IOMMU code
patch examples to work with (alpha, sparc64, ia64).
Franks a lot,
David S. Miller
davem@redhat.com
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next prev parent reply other threads:[~2001-11-16 16:57 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-16 7:30 Grant Grundler
2001-11-16 8:33 ` Jens Axboe
2001-11-16 14:52 ` David S. Miller
2001-11-16 15:04 ` [parisc-linux] " Matthew Wilcox
2001-11-16 15:17 ` David S. Miller
2001-11-16 15:26 ` Matthew Wilcox
2001-11-16 15:33 ` David S. Miller
2001-11-16 15:43 ` Matthew Wilcox
2001-11-16 15:47 ` David S. Miller
2001-11-16 16:44 ` Grant Grundler
2001-11-16 17:31 ` Alan Cox
2001-11-16 16:32 ` Grant Grundler
2001-11-16 16:57 ` David S. Miller [this message]
2001-11-16 17:06 ` Grant Grundler
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