#include <linux/fs.h>
+struct ctl_table;
+struct user_struct;
+
#ifdef CONFIG_HUGETLB_PAGE
#include <linux/mempolicy.h>
#include <linux/shm.h>
#include <asm/tlbflush.h>
-struct ctl_table;
-struct user_struct;
-
int PageHuge(struct page *page);
static inline int is_vm_hugetlb_page(struct vm_area_struct *vma)
}
void reset_vma_resv_huge_pages(struct vm_area_struct *vma);
-int hugetlb_sysctl_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *);
-int hugetlb_overcommit_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *);
-int hugetlb_treat_movable_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *);
+int hugetlb_sysctl_handler(struct ctl_table *, int, void __user *, size_t *, loff_t *);
+int hugetlb_overcommit_handler(struct ctl_table *, int, void __user *, size_t *, loff_t *);
+int hugetlb_treat_movable_handler(struct ctl_table *, int, 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, int);
+int follow_hugetlb_page(struct mm_struct *, struct vm_area_struct *,
+ struct page **, struct vm_area_struct **,
+ unsigned long *, int *, int, unsigned int flags);
void unmap_hugepage_range(struct vm_area_struct *,
unsigned long, unsigned long, struct page *);
void __unmap_hugepage_range(struct vm_area_struct *,
#endif /* !CONFIG_HUGETLB_PAGE */
+#define HUGETLB_ANON_FILE "anon_hugepage"
+
+enum {
+ /*
+ * The file will be used as an shm file so shmfs accounting rules
+ * apply
+ */
+ HUGETLB_SHMFS_INODE = 1,
+ /*
+ * The file is being created on the internal vfs mount and shmfs
+ * accounting rules do not apply
+ */
+ HUGETLB_ANONHUGE_INODE = 2,
+};
+
#ifdef CONFIG_HUGETLBFS
struct hugetlbfs_config {
uid_t uid;
}
extern const struct file_operations hugetlbfs_file_operations;
-extern struct vm_operations_struct hugetlb_vm_ops;
+extern const struct vm_operations_struct hugetlb_vm_ops;
struct file *hugetlb_file_setup(const char *name, size_t size, int acct,
- struct user_struct **user);
+ struct user_struct **user, int creat_flags);
int hugetlb_get_quota(struct address_space *mapping, long delta);
void hugetlb_put_quota(struct address_space *mapping, long delta);
#define is_file_hugepages(file) 0
#define set_file_hugepages(file) BUG()
-#define hugetlb_file_setup(name,size,acct,user) ERR_PTR(-ENOSYS)
+static inline struct file *hugetlb_file_setup(const char *name, size_t size,
+ int acctflag, struct user_struct **user, int creat_flags)
+{
+ return ERR_PTR(-ENOSYS);
+}
#endif /* !CONFIG_HUGETLBFS */
#define HSTATE_NAME_LEN 32
/* Defines one hugetlb page size */
struct hstate {
- int hugetlb_next_nid;
+ int next_nid_to_alloc;
+ int next_nid_to_free;
unsigned int order;
unsigned long mask;
unsigned long max_huge_pages;