152 static inline void __mm_zero_struct_page(struct page *page)  in __mm_zero_struct_page()  argument
154 	unsigned long *_pp = (void *)page;  in __mm_zero_struct_page()
157 	BUILD_BUG_ON(sizeof(struct page) & 7);  in __mm_zero_struct_page()
158 	BUILD_BUG_ON(sizeof(struct page) < 56);  in __mm_zero_struct_page()
159 	BUILD_BUG_ON(sizeof(struct page) > 80);  in __mm_zero_struct_page()
161 	switch (sizeof(struct page)) {  in __mm_zero_struct_page()
182 #define mm_zero_struct_page(pp)  ((void)memset((pp), 0, sizeof(struct page)))
224 int __add_to_page_cache_locked(struct page *page, struct address_space *mapping,
228 #define nth_page(page,n) pfn_to_page(page_to_pfn((page)) + (n))  argument
230 #define nth_page(page,n) ((page) + (n))  argument
239 #define lru_to_page(head) (list_entry((head)->prev, struct page, lru))
552 	struct page *cow_page;		/* Page handler may use for COW fault */
553 	struct page *page;		/* ->fault handlers should return a  member
655 	struct page *(*find_special_page)(struct vm_area_struct *vma,
745 static inline int put_page_testzero(struct page *page)  in put_page_testzero()  argument
747 	VM_BUG_ON_PAGE(page_ref_count(page) == 0, page);  in put_page_testzero()
748 	return page_ref_dec_and_test(page);  in put_page_testzero()
757 static inline int get_page_unless_zero(struct page *page)  in get_page_unless_zero()  argument
759 	return page_ref_add_unless(page, 1, 0);  in get_page_unless_zero()
774 struct page *vmalloc_to_page(const void *addr);
836 static inline int head_compound_mapcount(struct page *head)  in head_compound_mapcount()
846 static inline int compound_mapcount(struct page *page)  in compound_mapcount()  argument
848 	VM_BUG_ON_PAGE(!PageCompound(page), page);  in compound_mapcount()
849 	page = compound_head(page);  in compound_mapcount()
850 	return head_compound_mapcount(page);  in compound_mapcount()
858 static inline void page_mapcount_reset(struct page *page)  in page_mapcount_reset()  argument
860 	atomic_set(&(page)->_mapcount, -1);  in page_mapcount_reset()
863 int __page_mapcount(struct page *page);
873 static inline int page_mapcount(struct page *page)  in page_mapcount()  argument
875 	if (unlikely(PageCompound(page)))  in page_mapcount()
876 		return __page_mapcount(page);  in page_mapcount()
877 	return atomic_read(&page->_mapcount) + 1;  in page_mapcount()
881 int total_mapcount(struct page *page);
882 int page_trans_huge_mapcount(struct page *page, int *total_mapcount);
884 static inline int total_mapcount(struct page *page)  in total_mapcount()  argument
886 	return page_mapcount(page);  in total_mapcount()
888 static inline int page_trans_huge_mapcount(struct page *page,  in page_trans_huge_mapcount()  argument
891 	int mapcount = page_mapcount(page);  in page_trans_huge_mapcount()
898 static inline struct page *virt_to_head_page(const void *x)  in virt_to_head_page()
900 	struct page *page = virt_to_page(x);  in virt_to_head_page()  local
902 	return compound_head(page);  in virt_to_head_page()
905 void __put_page(struct page *page);
909 void split_page(struct page *page, unsigned int order);
910 void copy_huge_page(struct page *dst, struct page *src);
917 typedef void compound_page_dtor(struct page *);
933 static inline void set_compound_page_dtor(struct page *page,  in set_compound_page_dtor()  argument
936 	VM_BUG_ON_PAGE(compound_dtor >= NR_COMPOUND_DTORS, page);  in set_compound_page_dtor()
937 	page[1].compound_dtor = compound_dtor;  in set_compound_page_dtor()
940 static inline void destroy_compound_page(struct page *page)  in destroy_compound_page()  argument
942 	VM_BUG_ON_PAGE(page[1].compound_dtor >= NR_COMPOUND_DTORS, page);  in destroy_compound_page()
943 	compound_page_dtors[page[1].compound_dtor](page);  in destroy_compound_page()
946 static inline unsigned int compound_order(struct page *page)  in compound_order()  argument
948 	if (!PageHead(page))  in compound_order()
950 	return page[1].compound_order;  in compound_order()
953 static inline bool hpage_pincount_available(struct page *page)  in hpage_pincount_available()  argument
960 	page = compound_head(page);  in hpage_pincount_available()
961 	return PageCompound(page) && compound_order(page) > 1;  in hpage_pincount_available()
964 static inline int head_compound_pincount(struct page *head)  in head_compound_pincount()
969 static inline int compound_pincount(struct page *page)  in compound_pincount()  argument
971 	VM_BUG_ON_PAGE(!hpage_pincount_available(page), page);  in compound_pincount()
972 	page = compound_head(page);  in compound_pincount()
973 	return head_compound_pincount(page);  in compound_pincount()
976 static inline void set_compound_order(struct page *page, unsigned int order)  in set_compound_order()  argument
978 	page[1].compound_order = order;  in set_compound_order()
979 	page[1].compound_nr = 1U << order;  in set_compound_order()
983 static inline unsigned long compound_nr(struct page *page)  in compound_nr()  argument
985 	if (!PageHead(page))  in compound_nr()
987 	return page[1].compound_nr;  in compound_nr()
991 static inline unsigned long page_size(struct page *page)  in page_size()  argument
993 	return PAGE_SIZE << compound_order(page);  in page_size()
997 static inline unsigned int page_shift(struct page *page)  in page_shift()  argument
999 	return PAGE_SHIFT + compound_order(page);  in page_shift()
1002 void free_compound_page(struct page *page);
1018 vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page);
1019 void do_set_pte(struct vm_fault *vmf, struct page *page, unsigned long addr);
1128 static inline enum zone_type page_zonenum(const struct page *page)  in page_zonenum()  argument
1130 	ASSERT_EXCLUSIVE_BITS(page->flags, ZONES_MASK << ZONES_PGSHIFT);  in page_zonenum()
1131 	return (page->flags >> ZONES_PGSHIFT) & ZONES_MASK;  in page_zonenum()
1135 static inline bool is_zone_device_page(const struct page *page)  in is_zone_device_page()  argument
1137 	return page_zonenum(page) == ZONE_DEVICE;  in is_zone_device_page()
1142 static inline bool is_zone_device_page(const struct page *page)  in is_zone_device_page()  argument
1148 static inline bool is_zone_movable_page(const struct page *page)  in is_zone_movable_page()  argument
1150 	return page_zonenum(page) == ZONE_MOVABLE;  in is_zone_movable_page()
1154 void free_devmap_managed_page(struct page *page);
1157 static inline bool page_is_devmap_managed(struct page *page)  in page_is_devmap_managed()  argument
1161 	if (!is_zone_device_page(page))  in page_is_devmap_managed()
1163 	switch (page->pgmap->type) {  in page_is_devmap_managed()
1173 void put_devmap_managed_page(struct page *page);
1176 static inline bool page_is_devmap_managed(struct page *page)  in page_is_devmap_managed()  argument
1181 static inline void put_devmap_managed_page(struct page *page)  in put_devmap_managed_page()  argument
1186 static inline bool is_device_private_page(const struct page *page)  in is_device_private_page()  argument
1190 		is_zone_device_page(page) &&  in is_device_private_page()
1191 		page->pgmap->type == MEMORY_DEVICE_PRIVATE;  in is_device_private_page()
1194 static inline bool is_pci_p2pdma_page(const struct page *page)  in is_pci_p2pdma_page()  argument
1198 		is_zone_device_page(page) &&  in is_pci_p2pdma_page()
1199 		page->pgmap->type == MEMORY_DEVICE_PCI_P2PDMA;  in is_pci_p2pdma_page()
1203 #define page_ref_zero_or_close_to_overflow(page) \  argument
1204 	((unsigned int) page_ref_count(page) + 127u <= 127u)
1206 static inline void get_page(struct page *page)  in get_page()  argument
1208 	page = compound_head(page);  in get_page()
1213 	VM_BUG_ON_PAGE(page_ref_zero_or_close_to_overflow(page), page);  in get_page()
1214 	page_ref_inc(page);  in get_page()
1217 bool __must_check try_grab_page(struct page *page, unsigned int flags);
1218 struct page *try_grab_compound_head(struct page *page, int refs,
1222 static inline __must_check bool try_get_page(struct page *page)  in try_get_page()  argument
1224 	page = compound_head(page);  in try_get_page()
1225 	if (WARN_ON_ONCE(page_ref_count(page) <= 0))  in try_get_page()
1227 	page_ref_inc(page);  in try_get_page()
1231 static inline void put_page(struct page *page)  in put_page()  argument
1233 	page = compound_head(page);  in put_page()
1241 	if (page_is_devmap_managed(page)) {  in put_page()
1242 		put_devmap_managed_page(page);  in put_page()
1246 	if (put_page_testzero(page))  in put_page()
1247 		__put_page(page);  in put_page()
1283 void unpin_user_page(struct page *page);
1284 void unpin_user_pages_dirty_lock(struct page **pages, unsigned long npages,
1286 void unpin_user_page_range_dirty_lock(struct page *page, unsigned long npages,
1288 void unpin_user_pages(struct page **pages, unsigned long npages);
1316 static inline bool page_maybe_dma_pinned(struct page *page)  in page_maybe_dma_pinned()  argument
1318 	if (hpage_pincount_available(page))  in page_maybe_dma_pinned()
1319 		return compound_pincount(page) > 0;  in page_maybe_dma_pinned()
1329 	return ((unsigned int)page_ref_count(compound_head(page))) >=  in page_maybe_dma_pinned()
1343 					  struct page *page)  in page_needs_cow_for_dma()  argument
1351 	return page_maybe_dma_pinned(page);  in page_needs_cow_for_dma()
1366 static inline int page_zone_id(struct page *page)  in page_zone_id()  argument
1368 	return (page->flags >> ZONEID_PGSHIFT) & ZONEID_MASK;  in page_zone_id()
1372 extern int page_to_nid(const struct page *page);
1374 static inline int page_to_nid(const struct page *page)  in page_to_nid()  argument
1376 	struct page *p = (struct page *)page;  in page_to_nid()
1420 static inline int page_cpupid_xchg_last(struct page *page, int cpupid)  in page_cpupid_xchg_last()  argument
1422 	return xchg(&page->_last_cpupid, cpupid & LAST_CPUPID_MASK);  in page_cpupid_xchg_last()
1425 static inline int page_cpupid_last(struct page *page)  in page_cpupid_last()  argument
1427 	return page->_last_cpupid;  in page_cpupid_last()
1429 static inline void page_cpupid_reset_last(struct page *page)  in page_cpupid_reset_last()  argument
1431 	page->_last_cpupid = -1 & LAST_CPUPID_MASK;  in page_cpupid_reset_last()
1434 static inline int page_cpupid_last(struct page *page)  in page_cpupid_last()  argument
1436 	return (page->flags >> LAST_CPUPID_PGSHIFT) & LAST_CPUPID_MASK;  in page_cpupid_last()
1439 extern int page_cpupid_xchg_last(struct page *page, int cpupid);
1441 static inline void page_cpupid_reset_last(struct page *page)  in page_cpupid_reset_last()  argument
1443 	page->flags |= LAST_CPUPID_MASK << LAST_CPUPID_PGSHIFT;  in page_cpupid_reset_last()
1447 static inline int page_cpupid_xchg_last(struct page *page, int cpupid)  in page_cpupid_xchg_last()  argument
1449 	return page_to_nid(page); /* XXX */  in page_cpupid_xchg_last()
1452 static inline int page_cpupid_last(struct page *page)  in page_cpupid_last()  argument
1454 	return page_to_nid(page); /* XXX */  in page_cpupid_last()
1482 static inline void page_cpupid_reset_last(struct page *page)  in page_cpupid_reset_last()  argument
1500 static inline u8 page_kasan_tag(const struct page *page)  in page_kasan_tag()  argument
1505 		tag = (page->flags >> KASAN_TAG_PGSHIFT) & KASAN_TAG_MASK;  in page_kasan_tag()
1512 static inline void page_kasan_tag_set(struct page *page, u8 tag)  in page_kasan_tag_set()  argument
1516 		page->flags &= ~(KASAN_TAG_MASK << KASAN_TAG_PGSHIFT);  in page_kasan_tag_set()
1517 		page->flags |= (tag & KASAN_TAG_MASK) << KASAN_TAG_PGSHIFT;  in page_kasan_tag_set()
1521 static inline void page_kasan_tag_reset(struct page *page)  in page_kasan_tag_reset()  argument
1524 		page_kasan_tag_set(page, 0xff);  in page_kasan_tag_reset()
1529 static inline u8 page_kasan_tag(const struct page *page)  in page_kasan_tag()  argument
1534 static inline void page_kasan_tag_set(struct page *page, u8 tag) { }  in page_kasan_tag_set()  argument
1535 static inline void page_kasan_tag_reset(struct page *page) { }  in page_kasan_tag_reset()  argument
1539 static inline struct zone *page_zone(const struct page *page)  in page_zone()  argument
1541 	return &NODE_DATA(page_to_nid(page))->node_zones[page_zonenum(page)];  in page_zone()
1544 static inline pg_data_t *page_pgdat(const struct page *page)  in page_pgdat()  argument
1546 	return NODE_DATA(page_to_nid(page));  in page_pgdat()
1550 static inline void set_page_section(struct page *page, unsigned long section)  in set_page_section()  argument
1552 	page->flags &= ~(SECTIONS_MASK << SECTIONS_PGSHIFT);  in set_page_section()
1553 	page->flags |= (section & SECTIONS_MASK) << SECTIONS_PGSHIFT;  in set_page_section()
1556 static inline unsigned long page_to_section(const struct page *page)  in page_to_section()  argument
1558 	return (page->flags >> SECTIONS_PGSHIFT) & SECTIONS_MASK;  in page_to_section()
1564 static inline bool is_pinnable_page(struct page *page)  in is_pinnable_page()  argument
1566 	return !(is_zone_movable_page(page) || is_migrate_cma_page(page)) ||  in is_pinnable_page()
1567 		is_zero_pfn(page_to_pfn(page));  in is_pinnable_page()
1570 static inline bool is_pinnable_page(struct page *page)  in is_pinnable_page()  argument
1576 static inline void set_page_zone(struct page *page, enum zone_type zone)  in set_page_zone()  argument
1578 	page->flags &= ~(ZONES_MASK << ZONES_PGSHIFT);  in set_page_zone()
1579 	page->flags |= (zone & ZONES_MASK) << ZONES_PGSHIFT;  in set_page_zone()
1582 static inline void set_page_node(struct page *page, unsigned long node)  in set_page_node()  argument
1584 	page->flags &= ~(NODES_MASK << NODES_PGSHIFT);  in set_page_node()
1585 	page->flags |= (node & NODES_MASK) << NODES_PGSHIFT;  in set_page_node()
1588 static inline void set_page_links(struct page *page, enum zone_type zone,  in set_page_links()  argument
1591 	set_page_zone(page, zone);  in set_page_links()
1592 	set_page_node(page, node);  in set_page_links()
1594 	set_page_section(page, pfn_to_section_nr(pfn));  in set_page_links()
1603 static __always_inline void *lowmem_page_address(const struct page *page)  in lowmem_page_address()  argument
1605 	return page_to_virt(page);  in lowmem_page_address()
1613 static inline void *page_address(const struct page *page)  in page_address()  argument
1615 	return page->virtual;  in page_address()
1617 static inline void set_page_address(struct page *page, void *address)  in set_page_address()  argument
1619 	page->virtual = address;  in set_page_address()
1625 void *page_address(const struct page *page);
1626 void set_page_address(struct page *page, void *virtual);
1631 #define page_address(page) lowmem_page_address(page)  argument
1632 #define set_page_address(page, address)  do { } while(0)  argument
1636 extern void *page_rmapping(struct page *page);
1637 extern struct anon_vma *page_anon_vma(struct page *page);
1638 extern struct address_space *page_mapping(struct page *page);
1640 extern struct address_space *__page_file_mapping(struct page *);
1643 struct address_space *page_file_mapping(struct page *page)  in page_file_mapping()  argument
1645 	if (unlikely(PageSwapCache(page)))  in page_file_mapping()
1646 		return __page_file_mapping(page);  in page_file_mapping()
1648 	return page->mapping;  in page_file_mapping()
1651 extern pgoff_t __page_file_index(struct page *page);
1657 static inline pgoff_t page_index(struct page *page)  in page_index()  argument
1659 	if (unlikely(PageSwapCache(page)))  in page_index()
1660 		return __page_file_index(page);  in page_index()
1661 	return page->index;  in page_index()
1664 bool page_mapped(struct page *page);
1665 struct address_space *page_mapping(struct page *page);
1672 static inline bool page_is_pfmemalloc(const struct page *page)  in page_is_pfmemalloc()  argument
1679 	return (uintptr_t)page->lru.next & BIT(1);  in page_is_pfmemalloc()
1686 static inline void set_page_pfmemalloc(struct page *page)  in set_page_pfmemalloc()  argument
1688 	page->lru.next = (void *)BIT(1);  in set_page_pfmemalloc()
1691 static inline void clear_page_pfmemalloc(struct page *page)  in clear_page_pfmemalloc()  argument
1693 	page->lru.next = NULL;  in clear_page_pfmemalloc()
1702 #define offset_in_thp(page, p)	((unsigned long)(p) & (thp_size(page) - 1))  argument
1727 	struct page *single_page;		/* Locked page to be unmapped */
1730 struct page *vm_normal_page(struct vm_area_struct *vma, unsigned long addr,
1732 struct page *vm_normal_page_pmd(struct vm_area_struct *vma, unsigned long addr,
1764 int truncate_inode_page(struct address_space *mapping, struct page *page);
1765 int generic_error_remove_page(struct address_space *mapping, struct page *page);
1766 int invalidate_inode_page(struct page *page);
1775 void unmap_mapping_page(struct page *page);
1796 static inline void unmap_mapping_page(struct page *page) { }  in unmap_mapping_page()  argument
1818 			    unsigned int gup_flags, struct page **pages,
1822 			   unsigned int gup_flags, struct page **pages,
1825 			    unsigned int gup_flags, struct page **pages,
1828 		    unsigned int gup_flags, struct page **pages,
1831 		    unsigned int gup_flags, struct page **pages, int *locked);
1833 		    unsigned int gup_flags, struct page **pages, int *locked);
1835 		    struct page **pages, unsigned int gup_flags);
1837 		    struct page **pages, unsigned int gup_flags);
1840 			unsigned int gup_flags, struct page **pages);
1842 			unsigned int gup_flags, struct page **pages);
1850 			struct page **pages);
1851 struct page *get_dump_page(unsigned long addr);
1853 extern int try_to_release_page(struct page * page, gfp_t gfp_mask);
1854 extern void do_invalidatepage(struct page *page, unsigned int offset,
1858 				struct page *page);
1859 void account_page_cleaned(struct page *page, struct address_space *mapping,
1861 int set_page_dirty(struct page *page);
1862 int set_page_dirty_lock(struct page *page);
1863 void __cancel_dirty_page(struct page *page);
1864 static inline void cancel_dirty_page(struct page *page)  in cancel_dirty_page()  argument
1867 	if (PageDirty(page))  in cancel_dirty_page()
1868 		__cancel_dirty_page(page);  in cancel_dirty_page()
1870 int clear_page_dirty_for_io(struct page *page);
1906 			     unsigned int gup_flags, struct page **pages);
1908 			     unsigned int gup_flags, struct page **pages);
1911 			unsigned int gup_flags, struct page **pagep)  in get_user_page_fast_only()
1957 static inline int mm_counter_file(struct page *page)  in mm_counter_file()  argument
1959 	if (PageSwapBacked(page))  in mm_counter_file()
1964 static inline int mm_counter(struct page *page)  in mm_counter()  argument
1966 	if (PageAnon(page))  in mm_counter()
1968 	return mm_counter_file(page);  in mm_counter()
2181 extern bool ptlock_alloc(struct page *page);
2182 extern void ptlock_free(struct page *page);
2184 static inline spinlock_t *ptlock_ptr(struct page *page)  in ptlock_ptr()  argument
2186 	return page->ptl;  in ptlock_ptr()
2193 static inline bool ptlock_alloc(struct page *page)  in ptlock_alloc()  argument
2198 static inline void ptlock_free(struct page *page)  in ptlock_free()  argument
2202 static inline spinlock_t *ptlock_ptr(struct page *page)  in ptlock_ptr()  argument
2204 	return &page->ptl;  in ptlock_ptr()
2213 static inline bool ptlock_init(struct page *page)  in ptlock_init()  argument
2222 	VM_BUG_ON_PAGE(*(unsigned long *)&page->ptl, page);  in ptlock_init()
2223 	if (!ptlock_alloc(page))  in ptlock_init()
2225 	spin_lock_init(ptlock_ptr(page));  in ptlock_init()
2238 static inline bool ptlock_init(struct page *page) { return true; }  in ptlock_init()  argument
2239 static inline void ptlock_free(struct page *page) {}  in ptlock_free()  argument
2248 static inline bool pgtable_pte_page_ctor(struct page *page)  in pgtable_pte_page_ctor()  argument
2250 	if (!ptlock_init(page))  in pgtable_pte_page_ctor()
2252 	__SetPageTable(page);  in pgtable_pte_page_ctor()
2253 	inc_lruvec_page_state(page, NR_PAGETABLE);  in pgtable_pte_page_ctor()
2257 static inline void pgtable_pte_page_dtor(struct page *page)  in pgtable_pte_page_dtor()  argument
2259 	ptlock_free(page);  in pgtable_pte_page_dtor()
2260 	__ClearPageTable(page);  in pgtable_pte_page_dtor()
2261 	dec_lruvec_page_state(page, NR_PAGETABLE);  in pgtable_pte_page_dtor()
2293 static struct page *pmd_to_page(pmd_t *pmd)  in pmd_to_page()
2304 static inline bool pmd_ptlock_init(struct page *page)  in pmd_ptlock_init()  argument
2307 	page->pmd_huge_pte = NULL;  in pmd_ptlock_init()
2309 	return ptlock_init(page);  in pmd_ptlock_init()
2312 static inline void pmd_ptlock_free(struct page *page)  in pmd_ptlock_free()  argument
2315 	VM_BUG_ON_PAGE(page->pmd_huge_pte, page);  in pmd_ptlock_free()
2317 	ptlock_free(page);  in pmd_ptlock_free()
2329 static inline bool pmd_ptlock_init(struct page *page) { return true; }  in pmd_ptlock_init()  argument
2330 static inline void pmd_ptlock_free(struct page *page) {}  in pmd_ptlock_free()  argument
2343 static inline bool pgtable_pmd_page_ctor(struct page *page)  in pgtable_pmd_page_ctor()  argument
2345 	if (!pmd_ptlock_init(page))  in pgtable_pmd_page_ctor()
2347 	__SetPageTable(page);  in pgtable_pmd_page_ctor()
2348 	inc_lruvec_page_state(page, NR_PAGETABLE);  in pgtable_pmd_page_ctor()
2352 static inline void pgtable_pmd_page_dtor(struct page *page)  in pgtable_pmd_page_dtor()  argument
2354 	pmd_ptlock_free(page);  in pgtable_pmd_page_dtor()
2355 	__ClearPageTable(page);  in pgtable_pmd_page_dtor()
2356 	dec_lruvec_page_state(page, NR_PAGETABLE);  in pgtable_pmd_page_dtor()
2391 extern void adjust_managed_page_count(struct page *page, long count);
2397 static inline void free_reserved_page(struct page *page)  in free_reserved_page()  argument
2399 	ClearPageReserved(page);  in free_reserved_page()
2400 	init_page_count(page);  in free_reserved_page()
2401 	__free_page(page);  in free_reserved_page()
2402 	adjust_managed_page_count(page, 1);  in free_reserved_page()
2404 #define free_highmem_page(page) free_reserved_page(page)  argument
2406 static inline void mark_page_reserved(struct page *page)  in mark_page_reserved()  argument
2408 	SetPageReserved(page);  in mark_page_reserved()
2409 	adjust_managed_page_count(page, -1);  in mark_page_reserved()
2600 				   unsigned long flags, struct page **pages);
2663 int __must_check write_one_page(struct page *page);
2796 int vm_insert_page(struct vm_area_struct *, unsigned long addr, struct page *);
2798 			struct page **pages, unsigned long *num);
2799 int vm_map_pages(struct vm_area_struct *vma, struct page **pages,
2801 int vm_map_pages_zero(struct vm_area_struct *vma, struct page **pages,
2816 				unsigned long addr, struct page *page)  in vmf_insert_page()  argument
2818 	int err = vm_insert_page(vma, addr, page);  in vmf_insert_page()
2844 struct page *follow_page(struct vm_area_struct *vma, unsigned long address,
2944 extern void __kernel_poison_pages(struct page *page, int numpages);
2945 extern void __kernel_unpoison_pages(struct page *page, int numpages);
2960 static inline void kernel_poison_pages(struct page *page, int numpages)  in kernel_poison_pages()  argument
2963 		__kernel_poison_pages(page, numpages);  in kernel_poison_pages()
2965 static inline void kernel_unpoison_pages(struct page *page, int numpages)  in kernel_unpoison_pages()  argument
2968 		__kernel_unpoison_pages(page, numpages);  in kernel_unpoison_pages()
2973 static inline void __kernel_poison_pages(struct page *page, int nunmpages) { }  in __kernel_poison_pages()  argument
2974 static inline void kernel_poison_pages(struct page *page, int numpages) { }  in kernel_poison_pages()  argument
2975 static inline void kernel_unpoison_pages(struct page *page, int numpages) { }  in kernel_unpoison_pages()  argument
3020 extern void __kernel_map_pages(struct page *page, int numpages, int enable);
3022 static inline void debug_pagealloc_map_pages(struct page *page, int numpages)  in debug_pagealloc_map_pages()  argument
3025 		__kernel_map_pages(page, numpages, 1);  in debug_pagealloc_map_pages()
3028 static inline void debug_pagealloc_unmap_pages(struct page *page, int numpages)  in debug_pagealloc_unmap_pages()  argument
3031 		__kernel_map_pages(page, numpages, 0);  in debug_pagealloc_unmap_pages()
3034 static inline void debug_pagealloc_map_pages(struct page *page, int numpages) {}  in debug_pagealloc_map_pages()  argument
3035 static inline void debug_pagealloc_unmap_pages(struct page *page, int numpages) {}  in debug_pagealloc_unmap_pages()  argument
3086 struct page * __populate_section_memmap(unsigned long pfn,
3108 void register_page_bootmem_memmap(unsigned long section_nr, struct page *map,
3123 extern void shake_page(struct page *p);
3165 extern void clear_huge_page(struct page *page,
3168 extern void copy_user_huge_page(struct page *dst, struct page *src,
3172 extern long copy_huge_page_from_user(struct page *dst_page,
3209 static inline bool page_is_guard(struct page *page)  in page_is_guard()  argument
3214 	return PageGuard(page);  in page_is_guard()
3219 static inline bool page_is_guard(struct page *page) { return false; }  in page_is_guard()  argument
3228 extern int memcmp_pages(struct page *page1, struct page *page2);
3230 static inline int pages_identical(struct page *page1, struct page *page2)  in pages_identical()