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SubjectRe: Hugepages demand paging V1 [1/4]: demand paging core
On Fri, 22 Oct 2004, William Lee Irwin III wrote:

> On Thu, Oct 21, 2004 at 09:56:27PM -0700, Christoph Lameter wrote:
> > +static void scrub_one_pmd(pmd_t * pmd)
> > +{
> > + struct page *page;
> > +
> > + if (pmd && !pmd_none(*pmd) && !pmd_huge(*pmd)) {
> > + page = pmd_page(*pmd);
> > + pmd_clear(pmd);
> > + dec_page_state(nr_page_table_pages);
> > + page_cache_release(page);
> > + }
> > +}
>
> It would be nicer to fix the pagetable leak (over the lifetime of a
> process) in the core instead of sprinkling hugetlb with this.

Yes, I contacted you yesterday about this. Could you take this on? CC me
on the patches and we will try to support you as best as we can.

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