From: Jens Axboe <axboe@suse.de>
To: Anton Blanchard <anton@samba.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.5: PCI scatter gather list change
Date: Sun, 2 Dec 2001 11:23:51 +0100 [thread overview]
Message-ID: <20011202112351.K25987@suse.de> (raw)
In-Reply-To: <20011202153553.B5130@krispykreme>
In-Reply-To: <20011202153553.B5130@krispykreme>
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
next prev parent reply other threads:[~2001-12-02 10:24 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-02 4:35 2.5: PCI scatter gather list change Anton Blanchard
2001-12-02 10:23 ` Jens Axboe [this message]
2001-12-03 0:05 ` David S. Miller
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