Re: [PATCH 2/2] [BUGFIX] pagemap: fix pfn calculation for hugepage

From: KAMEZAWA Hiroyuki
Date: Wed Mar 24 2010 - 01:26:43 EST


On Wed, 24 Mar 2010 14:18:45 +0900
Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> wrote:

> On Fri, Mar 19, 2010 at 05:13:10PM +0900, KAMEZAWA Hiroyuki wrote:
> ...
> > >
> > > But, this means hugeltb_entry() is not called per hugetlb entry...isn't it ?
> > >
> > > Why hugetlb_entry() cannot be called per hugeltb entry ? Don't we need a code
> > > for a case as pmd_size != hugetlb_size in walk_page_range() for generic fix ?
> > >
> >
> > How about this style ? This is an idea-level patch. not tested at all.
> > (I have no test enviroment for multiple hugepage size.)
> >
> > feel free to reuse fragments from this patch.
> >
>
> So the point is calling hugetlb_entry() for each huge page, right?
>
yes.

> It looks good.
> I've rewritten my patch based on your idea and make sure it works.
> Is it ok to add your Signed-off-by?
Of course.

Thanks.
-Kame

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