2006/3/21, Nick Piggin <[email protected]>:
> Stone Wang wrote:
> > We dont account HugeTLB pages for:
> >
> > 1. HugeTLB pages themselves are not reclaimable.
> >
> > 2. If we count HugeTLB pages in "Wired",then we would have no mind
> > how many of the "Wired" are HugeTLB pages, and how many are
> > normal-size pages.
> > Thus, hard to get a clear map of physical memory use,for example:
> > how many pages are reclaimable?
> > If we must count HugeTLB pages,more fields should be added to
> > "/proc/meminfo",
> > for exmaple: "Wired HugeTLB:", "Wired Normal:".
> >
>
> Then why do you wire them at all? Your unwire function does not appear
> to be able to unwire them.
We didnt wire them.
Check get_user_pages():
/* We dont account wired HugeTLB pages */
if (is_vm_hugetlb_page(vma)) {
i = follow_hugetlb_page(mm, vma, pages, vmas,
&start, &len, i);
continue;
}
Shaoping Wang
>
> --
> SUSE Labs, Novell Inc.
> Send instant messages to your online friends http://au.messenger.yahoo.com
>
>
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