Messages in this thread | | | Date | Sun, 2 Dec 2001 11:23:51 +0100 | From | Jens Axboe <> | Subject | Re: 2.5: PCI scatter gather list change |
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On Sun, Dec 02 2001, Anton Blanchard wrote: > > Hi Jens, > > I got 2.5 booting on ppc64 today and noticed that the behaviour of > sglists has changed. Before we would get an array of sg->address, > sg->length pairs, we now get sg->page, sg->offset, sg->length triplets > (from blk_rq_map_sg). > > I dont care too much either way, but if this change is here to stay I'll > let the non intel maintainers know so they can fix up their pci dma > code.
The change is here to stay, the ->address stuff will die in 2.5. Consider highmem pages which have no virtual mapping.
-- Jens Axboe
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