Messages in this thread | | | Date | Wed, 15 Aug 2001 14:07:40 +0200 | From | Jens Axboe <> | Subject | Re: [patch] zero-bounce highmem I/O |
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On Wed, Aug 15 2001, David S. Miller wrote: > From: Jens Axboe <axboe@suse.de> > Date: Wed, 15 Aug 2001 13:13:35 +0200 > > Looks fine to me, exactly the interface I've used/wanted. But you want > to add the extra page/offset to the existing scatterlist, and not scrap > that one completely? > > The idea is that address/alt_address disappear sometime in 2.5. > Something like this right?
Ok so you just want to turn scatterlist into what I call sg_list in 2.5 time, fine with me too. Depends on whether we want to keep the pci_map_sg and struct scatterlist interface intact, or just break it and tell driver authors they must fix their stuff regardless of whether they want to support highmem. As I write this sentence, it's clear to me which way is the superior :-)
> BTW, on x86 we can ifdef the dma64_address to u32 or u64 based > upon CONFIG_HIGHMEM if we wish.
Yep. Want me to add in the x86 parts of your patch?
-- Jens Axboe
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