diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/huge_mm.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index 1c53c7d7ef7e..70587ea079c3 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -155,6 +155,16 @@ static inline bool is_huge_zero_page(struct page *page) return ACCESS_ONCE(huge_zero_page) == page; } +static inline bool is_huge_zero_pmd(pmd_t pmd) +{ + return is_huge_zero_page(pmd_page(pmd)); +} + +struct page *get_huge_zero_page(void); +bool set_huge_zero_page(pgtable_t pgtable, struct mm_struct *mm, + struct vm_area_struct *vma, unsigned long haddr, + pmd_t *pmd, struct page *zero_page); + #else /* CONFIG_TRANSPARENT_HUGEPAGE */ #define HPAGE_PMD_SHIFT ({ BUILD_BUG(); 0; }) #define HPAGE_PMD_MASK ({ BUILD_BUG(); 0; }) |