diff options
| -rw-r--r-- | mm/page_vma_mapped.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/mm/page_vma_mapped.c b/mm/page_vma_mapped.c index eff4b4520c8d..719c35246cfa 100644 --- a/mm/page_vma_mapped.c +++ b/mm/page_vma_mapped.c @@ -52,12 +52,16 @@ static bool map_pte(struct page_vma_mapped_walk *pvmw) return true; } -static inline bool pfn_in_hpage(struct page *hpage, unsigned long pfn) +static inline bool pfn_is_match(struct page *page, unsigned long pfn) { - unsigned long hpage_pfn = page_to_pfn(hpage); + unsigned long page_pfn = page_to_pfn(page); + + /* normal page and hugetlbfs page */ + if (!PageTransCompound(page) || PageHuge(page)) + return page_pfn == pfn; /* THP can be referenced by any subpage */ - return pfn >= hpage_pfn && pfn - hpage_pfn < hpage_nr_pages(hpage); + return pfn >= page_pfn && pfn - page_pfn < hpage_nr_pages(page); } /** @@ -108,7 +112,7 @@ static bool check_pte(struct page_vma_mapped_walk *pvmw) pfn = pte_pfn(*pvmw->pte); } - return pfn_in_hpage(pvmw->page, pfn); + return pfn_is_match(pvmw->page, pfn); } /** |