extern unsigned long hugepages_treat_as_movable;
extern const unsigned long hugetlb_zero, hugetlb_infinity;
extern int sysctl_hugetlb_shm_group;
+extern struct list_head huge_boot_pages;
/* arch callbacks */
int write);
struct page *follow_huge_pmd(struct mm_struct *mm, unsigned long address,
pmd_t *pmd, int write);
+struct page *follow_huge_pud(struct mm_struct *mm, unsigned long address,
+ pud_t *pud, int write);
int pmd_huge(pmd_t pmd);
+int pud_huge(pud_t pmd);
void hugetlb_change_protection(struct vm_area_struct *vma,
unsigned long address, unsigned long end, pgprot_t newprot);
#define hugetlb_report_meminfo(buf) 0
#define hugetlb_report_node_meminfo(n, buf) 0
#define follow_huge_pmd(mm, addr, pmd, write) NULL
+#define follow_huge_pud(mm, addr, pud, write) NULL
#define prepare_hugepage_range(file, addr, len) (-EINVAL)
#define pmd_huge(x) 0
+#define pud_huge(x) 0
#define is_hugepage_only_range(mm, addr, len) 0
#define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) ({BUG(); 0; })
#define hugetlb_fault(mm, vma, addr, write) ({ BUG(); 0; })
#ifdef CONFIG_HUGETLB_PAGE
+#define HSTATE_NAME_LEN 32
/* Defines one hugetlb page size */
struct hstate {
int hugetlb_next_nid;
unsigned int nr_huge_pages_node[MAX_NUMNODES];
unsigned int free_huge_pages_node[MAX_NUMNODES];
unsigned int surplus_huge_pages_node[MAX_NUMNODES];
+ char name[HSTATE_NAME_LEN];
};
+struct huge_bootmem_page {
+ struct list_head list;
+ struct hstate *hstate;
+};
+
+/* arch callback */
+int __init alloc_bootmem_huge_page(struct hstate *h);
+
void __init hugetlb_add_hstate(unsigned order);
struct hstate *size_to_hstate(unsigned long size);
#else
struct hstate {};
+#define alloc_bootmem_huge_page(h) NULL
#define hstate_file(f) NULL
#define hstate_vma(v) NULL
#define hstate_inode(i) NULL
#define huge_page_mask(h) PAGE_MASK
#define huge_page_order(h) 0
#define huge_page_shift(h) PAGE_SHIFT
-#define pages_per_huge_page(h) 1
+static inline unsigned int pages_per_huge_page(struct hstate *h)
+{
+ return 1;
+}
#endif
#endif /* _LINUX_HUGETLB_H */