unsigned long hugetlb_total_pages(void);
int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
unsigned long address, int write_access);
+int hugetlb_reserve_pages(struct inode *inode, long from, long to);
+void hugetlb_unreserve_pages(struct inode *inode, long offset, long freed);
extern unsigned long max_huge_pages;
extern const unsigned long hugetlb_zero, hugetlb_infinity;
struct hugetlbfs_inode_info {
struct shared_policy policy;
- /* Protected by the (global) hugetlb_lock */
- unsigned long prereserved_hpages;
struct inode vfs_inode;
};
extern const struct file_operations hugetlbfs_file_operations;
extern struct vm_operations_struct hugetlb_vm_ops;
struct file *hugetlb_zero_setup(size_t);
-int hugetlb_extend_reservation(struct hugetlbfs_inode_info *info,
- unsigned long atleast_hpages);
-void hugetlb_truncate_reservation(struct hugetlbfs_inode_info *info,
- unsigned long atmost_hpages);
int hugetlb_get_quota(struct address_space *mapping);
void hugetlb_put_quota(struct address_space *mapping);