diff options
Diffstat (limited to 'include/linux/hugetlb.h')
| -rw-r--r-- | include/linux/hugetlb.h | 32 |
1 files changed, 18 insertions, 14 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 65910437be1c..93418625d3c5 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -518,6 +518,7 @@ static inline struct hugetlbfs_sb_info *HUGETLBFS_SB(struct super_block *sb) struct hugetlbfs_inode_info { struct inode vfs_inode; + struct resv_map *resv_map; unsigned int seals; }; @@ -777,10 +778,6 @@ static inline unsigned long huge_page_size(const struct hstate *h) return (unsigned long)PAGE_SIZE << h->order; } -extern unsigned long vma_kernel_pagesize(struct vm_area_struct *vma); - -extern unsigned long vma_mmu_pagesize(struct vm_area_struct *vma); - static inline unsigned long huge_page_mask(struct hstate *h) { return h->mask; @@ -796,6 +793,23 @@ static inline unsigned huge_page_shift(struct hstate *h) return h->order + PAGE_SHIFT; } +/** + * hugetlb_linear_page_index() - linear_page_index() but in hugetlb + * page size granularity. + * @vma: the hugetlb VMA + * @address: the virtual address within the VMA + * + * Return: the page offset within the mapping in huge page units. + */ +static inline pgoff_t hugetlb_linear_page_index(struct vm_area_struct *vma, + unsigned long address) +{ + struct hstate *h = hstate_vma(vma); + + return ((address - vma->vm_start) >> huge_page_shift(h)) + + (vma->vm_pgoff >> huge_page_order(h)); +} + static inline bool order_is_gigantic(unsigned int order) { return order > MAX_PAGE_ORDER; @@ -1177,16 +1191,6 @@ static inline unsigned long huge_page_mask(struct hstate *h) return PAGE_MASK; } -static inline unsigned long vma_kernel_pagesize(struct vm_area_struct *vma) -{ - return PAGE_SIZE; -} - -static inline unsigned long vma_mmu_pagesize(struct vm_area_struct *vma) -{ - return PAGE_SIZE; -} - static inline unsigned int huge_page_order(struct hstate *h) { return 0; |