This implements the same algorithm as total_mapcount(), which is transformed into a wrapper function.
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| @@ -825,8 +825,14 @@ static inline int page_mapcount(struct page *page) · 824 unmodified lines | ||
| 825 | 825 | return atomic_read(&page->_mapcount) + 1; |
| 826 | 826 | } |
| 827 | 827 | |
| 828 | +int folio_mapcount(struct folio *folio); | |
| 829 | + | |
| 828 | 830 | #ifdef CONFIG_TRANSPARENT_HUGEPAGE |
| 829 | −int total_mapcount(struct page *page); | |
| 831 | +static inline int total_mapcount(struct page *page) | |
| 832 | +{ | |
| 833 | + return folio_mapcount(page_folio(page)); | |
| 834 | +} | |
| 835 | + | |
| 830 | 836 | int page_trans_huge_mapcount(struct page *page); |
| 831 | 837 | #else |
| 832 | 838 | static inline int total_mapcount(struct page *page) |