diff options
Diffstat (limited to 'include/linux/hugetlb.h')
| -rw-r--r-- | include/linux/hugetlb.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 796f30e00806..943c76b3d4bb 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -307,6 +307,11 @@ static inline struct hstate *page_hstate(struct page *page) return size_to_hstate(PAGE_SIZE << compound_order(page)); } +static inline unsigned hstate_index_to_shift(unsigned index) +{ + return hstates[index].order + PAGE_SHIFT; +} + #else struct hstate {}; #define alloc_huge_page_node(h, nid) NULL @@ -324,6 +329,7 @@ static inline unsigned int pages_per_huge_page(struct hstate *h) { return 1; } +#define hstate_index_to_shift(index) 0 #endif #endif /* _LINUX_HUGETLB_H */ |