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Diffstat (limited to 'kernel/include/linux/huge_mm.h')
-rw-r--r--kernel/include/linux/huge_mm.h20
1 files changed, 10 insertions, 10 deletions
diff --git a/kernel/include/linux/huge_mm.h b/kernel/include/linux/huge_mm.h
index f10b20f05..ecb080d6f 100644
--- a/kernel/include/linux/huge_mm.h
+++ b/kernel/include/linux/huge_mm.h
@@ -33,6 +33,8 @@ extern int move_huge_pmd(struct vm_area_struct *vma,
extern int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
unsigned long addr, pgprot_t newprot,
int prot_numa);
+int vmf_insert_pfn_pmd(struct vm_area_struct *, unsigned long addr, pmd_t *,
+ unsigned long pfn, bool write);
enum transparent_hugepage_flag {
TRANSPARENT_HUGEPAGE_FLAG,
@@ -122,7 +124,7 @@ extern void split_huge_page_pmd_mm(struct mm_struct *mm, unsigned long address,
#endif
extern int hugepage_madvise(struct vm_area_struct *vma,
unsigned long *vm_flags, int advice);
-extern void __vma_adjust_trans_huge(struct vm_area_struct *vma,
+extern void vma_adjust_trans_huge(struct vm_area_struct *vma,
unsigned long start,
unsigned long end,
long adjust_next);
@@ -138,15 +140,6 @@ static inline int pmd_trans_huge_lock(pmd_t *pmd, struct vm_area_struct *vma,
else
return 0;
}
-static inline void vma_adjust_trans_huge(struct vm_area_struct *vma,
- unsigned long start,
- unsigned long end,
- long adjust_next)
-{
- if (!vma->anon_vma || vma->vm_ops)
- return;
- __vma_adjust_trans_huge(vma, start, end, adjust_next);
-}
static inline int hpage_nr_pages(struct page *page)
{
if (unlikely(PageTransHuge(page)))
@@ -164,6 +157,13 @@ 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);
+
#else /* CONFIG_TRANSPARENT_HUGEPAGE */
#define HPAGE_PMD_SHIFT ({ BUILD_BUG(); 0; })
#define HPAGE_PMD_MASK ({ BUILD_BUG(); 0; })