Re: [PATCH] CPA: Add statistics about state of direct mapping v3

From: Thomas Gleixner
Date: Tue Mar 25 2008 - 12:16:51 EST




On Tue, 25 Mar 2008, Andi Kleen wrote:

> On Tue, Mar 25, 2008 at 04:40:43PM +0100, Thomas Gleixner wrote:
> > On Sat, 22 Mar 2008, Andi Kleen wrote:
> >
> > > [I didn't switch to debugfs because I strongly disagreed with that
> > > suggestion. But all the other points you made are addressed.]
> >
> > Halfways :)
>
> Ok.
>
> > > + update_page_count(PG_LEVEL_1G, pages);
> > > +
> >
> > update via function call with pages = 0 ?
>
> Didn't get that one. Can you clarify?

You have the direct increment and the function call in
phys_pud_init. The function is always called with pages=0 because
nothing ever increments pages.

Thanks,
tglx
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