diff options
Diffstat (limited to 'include/linux/mm.h')
| -rw-r--r-- | include/linux/mm.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 864d7221de84..8f468e0d2534 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -500,11 +500,20 @@ static inline int page_mapcount(struct page *page) #ifdef CONFIG_TRANSPARENT_HUGEPAGE int total_mapcount(struct page *page); +int page_trans_huge_mapcount(struct page *page, int *total_mapcount); #else static inline int total_mapcount(struct page *page) { return page_mapcount(page); } +static inline int page_trans_huge_mapcount(struct page *page, + int *total_mapcount) +{ + int mapcount = page_mapcount(page); + if (total_mapcount) + *total_mapcount = mapcount; + return mapcount; +} #endif static inline struct page *virt_to_head_page(const void *x) |