From: Jon Smirl <jonsmirl@gmail.com>
To: Andi Kleen <ak@muc.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>, linux-kernel@vger.kernel.org
Subject: Re: chasing the four level page table
Date: Sat, 15 Jan 2005 00:59:08 -0500 [thread overview]
Message-ID: <9e4733910501142159c3a13a7@mail.gmail.com> (raw)
In-Reply-To: <m1brbrwc89.fsf@muc.de>
On Sat, 15 Jan 2005 05:24:54 +0100, Andi Kleen <ak@muc.de> wrote:
> it wants to get at a AGP page outside get_user_pages doesn't work for
> this because the AGP hole is often outside mem_map. For that a
> nice helper is missing.
>
> I'm not 100% we really want a helper because it's rather obscure
> requirement, unlikely to be useful for others, and it may be better
> to keep it in DRM.
Wouldn't it be better as a helper where the memory management people
maintain it? For example I only work on x86, are there cross platform
issues? Also, the DRM code is missing the page_table_lock around the
calls too.
--
Jon Smirl
jonsmirl@gmail.com
prev parent reply other threads:[~2005-01-15 5:59 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-06 17:17 chasing the four level page table Jon Smirl
2005-01-06 18:12 ` Andi Kleen
2005-01-06 18:36 ` Jon Smirl
2005-01-06 19:38 ` Andi Kleen
2005-01-06 20:05 ` Jon Smirl
2005-01-06 21:41 ` Dave Jones
2005-01-08 5:22 ` Jon Smirl
2005-01-15 2:54 ` H. Peter Anvin
2005-01-15 3:37 ` Roland Dreier
2005-01-15 4:24 ` Andi Kleen
2005-01-15 5:59 ` Jon Smirl [this message]
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