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SubjectRe: chasing the four level page table
On Thu, 6 Jan 2005 16:41:59 -0500, Dave Jones <davej@redhat.com> wrote:
> No other device driver is also doing such lowlevel stuff with
> page tables directly afaics. drivers/char/drm seem to be the only drivers
> using [pgd|pmd|pte]_offset() routines.

On 6 Jan 2005 20:38:27 +0100, Andi Kleen <ak@muc.de> wrote:
> Perhaps we should add a get_user_phys() or somesuch for this.

I think this is a case where the memory manager is missing a function
that DRM needs. If there was a get_user_phys() function DRM wouldn't
need to walk the page tables.

--
Jon Smirl
jonsmirl@gmail.com
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