Re: 2.5: PCI scatter gather list change

From: Jens Axboe (axboe@suse.de)
Date: Sun Dec 02 2001 - 05:23:51 EST

Next message: Christoph Rohland: "Re: [OT] Wrapping memory."
Previous message: Lars Brinkhoff: "Re: Coding style - a non-issue"
In reply to: Anton Blanchard: "2.5: PCI scatter gather list change"
Next in thread: David S. Miller: "Re: 2.5: PCI scatter gather list change"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

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

- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/

Next message: Christoph Rohland: "Re: [OT] Wrapping memory."
Previous message: Lars Brinkhoff: "Re: Coding style - a non-issue"
In reply to: Anton Blanchard: "2.5: PCI scatter gather list change"
Next in thread: David S. Miller: "Re: 2.5: PCI scatter gather list change"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

This archive was generated by hypermail 2b29 : Fri Dec 07 2001 - 21:00:18 EST