int hugetlb_sysctl_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *);
int copy_hugetlb_page_range(struct mm_struct *, struct mm_struct *, struct vm_area_struct *);
int follow_hugetlb_page(struct mm_struct *, struct vm_area_struct *, struct page **, struct vm_area_struct **, unsigned long *, int *, int);
-void zap_hugepage_range(struct vm_area_struct *, unsigned long, unsigned long);
void unmap_hugepage_range(struct vm_area_struct *, unsigned long, unsigned long);
int hugetlb_prefault(struct address_space *, struct vm_area_struct *);
int hugetlb_report_meminfo(char *);
unsigned long hugetlb_total_pages(void);
struct page *alloc_huge_page(void);
void free_huge_page(struct page *);
+int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
+ unsigned long address, int write_access);
extern unsigned long max_huge_pages;
extern const unsigned long hugetlb_zero, hugetlb_infinity;
#define follow_huge_addr(mm, addr, write) ERR_PTR(-EINVAL)
#define copy_hugetlb_page_range(src, dst, vma) ({ BUG(); 0; })
#define hugetlb_prefault(mapping, vma) ({ BUG(); 0; })
-#define zap_hugepage_range(vma, start, len) BUG()
#define unmap_hugepage_range(vma, start, end) BUG()
#define is_hugepage_mem_enough(size) 0
#define hugetlb_report_meminfo(buf) 0
do { } while (0)
#define alloc_huge_page() ({ NULL; })
#define free_huge_page(p) ({ (void)(p); BUG(); })
+#define hugetlb_fault(mm, vma, addr, write) ({ BUG(); 0; })
#ifndef HPAGE_MASK
#define HPAGE_MASK 0 /* Keep the compiler happy */
{
file->f_op = &hugetlbfs_file_operations;
}
-
-static inline int valid_hugetlb_file_off(struct vm_area_struct *vma,
- unsigned long address)
-{
- struct inode *inode = vma->vm_file->f_dentry->d_inode;
- loff_t file_off = address - vma->vm_start;
-
- file_off += (vma->vm_pgoff << PAGE_SHIFT);
-
- return (file_off < inode->i_size);
-}
-
#else /* !CONFIG_HUGETLBFS */
#define is_file_hugepages(file) 0
#define set_file_hugepages(file) BUG()
#define hugetlb_zero_setup(size) ERR_PTR(-ENOSYS)
-#define valid_hugetlb_file_off(vma, address) 0
#endif /* !CONFIG_HUGETLBFS */