Messages in this thread | | | Date | Tue, 24 Nov 2015 13:15:21 -0500 | From | Johannes Weiner <> | Subject | Re: [PATCH -mm v2] mm: add page_check_address_transhuge helper |
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On Tue, Nov 24, 2015 at 12:36:17PM +0300, Vladimir Davydov wrote: > diff --git a/include/linux/rmap.h b/include/linux/rmap.h > index b9eedc63e9e6..77d1ba57d495 100644 > --- a/include/linux/rmap.h > +++ b/include/linux/rmap.h > @@ -219,9 +219,20 @@ static inline pte_t *page_check_address(struct page *page, struct mm_struct *mm, > * Used by idle page tracking to check if a page was referenced via page > * tables. > */ > +#ifdef CONFIG_TRANSPARENT_HUGEPAGE > bool page_check_address_transhuge(struct page *page, struct mm_struct *mm, > unsigned long address, pmd_t **pmdp, > pte_t **ptep, spinlock_t **ptlp); > +#else > +static inline bool page_check_address_transhuge(struct page *page, > + struct mm_struct *mm, unsigned long address, > + pmd_t **pmdp, pte_t **ptep, spinlock_t **ptlp) > +{ > + *ptep = page_check_address(page, mm, address, ptlp, 0); > + *pmdp = NULL; > + return !!*ptep; > +} > +#endif
Tested-by: Johannes Weiner <hannes@cmpxchg.org>
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