39 static inline void set_page_count(struct page *page, int v)  in set_page_count()  argument
41 	atomic_set(&page->_count, v);  in set_page_count()
62 static inline void set_page_refcounted(struct page *page)  in set_page_refcounted()  argument
64 	VM_BUG_ON_PAGE(PageTail(page), page);  in set_page_refcounted()
65 	VM_BUG_ON_PAGE(atomic_read(&page->_count), page);  in set_page_refcounted()
66 	set_page_count(page, 1);  in set_page_refcounted()
69 static inline void __get_page_tail_foll(struct page *page,  in __get_page_tail_foll()  argument
83 	VM_BUG_ON_PAGE(atomic_read(&compound_head(page)->_count) <= 0, page);  in __get_page_tail_foll()
85 		atomic_inc(&compound_head(page)->_count);  in __get_page_tail_foll()
86 	get_huge_page_tail(page);  in __get_page_tail_foll()
94 static inline void get_page_foll(struct page *page)  in get_page_foll()  argument
96 	if (unlikely(PageTail(page)))  in get_page_foll()
102 		__get_page_tail_foll(page, true);  in get_page_foll()
108 		VM_BUG_ON_PAGE(atomic_read(&page->_count) <= 0, page);  in get_page_foll()
109 		atomic_inc(&page->_count);  in get_page_foll()
118 extern int isolate_lru_page(struct page *page);
119 extern void putback_lru_page(struct page *page);
177 extern int __isolate_free_page(struct page *page, unsigned int order);
178 extern void __free_pages_bootmem(struct page *page, unsigned long pfn,
180 extern void prep_compound_page(struct page *page, unsigned int order);
182 extern bool is_free_buddy_page(struct page *page);
238 static inline unsigned int page_order(struct page *page)  in page_order()  argument
241 	return page_private(page);  in page_order()
255 #define page_order_unsafe(page)		READ_ONCE(page_private(page))  argument
279 extern void mlock_vma_page(struct page *page);
280 extern unsigned int munlock_vma_page(struct page *page);
291 extern void clear_page_mlock(struct page *page);
298 static inline void mlock_migrate_page(struct page *newpage, struct page *page)  in mlock_migrate_page()  argument
300 	if (TestClearPageMlocked(page)) {  in mlock_migrate_page()
301 		int nr_pages = hpage_nr_pages(page);  in mlock_migrate_page()
304 		__mod_zone_page_state(page_zone(page), NR_MLOCK, -nr_pages);  in mlock_migrate_page()
313 extern unsigned long vma_address(struct page *page,
317 static inline void clear_page_mlock(struct page *page) { }  in clear_page_mlock()  argument
318 static inline void mlock_vma_page(struct page *page) { }  in mlock_vma_page()  argument
319 static inline void mlock_migrate_page(struct page *new, struct page *old) { }  in mlock_migrate_page()
328 static inline struct page *mem_map_offset(struct page *base, int offset)  in mem_map_offset()
339 static inline struct page *mem_map_next(struct page *iter,  in mem_map_next()
340 						struct page *base, int offset)  in mem_map_next()
418 extern int hwpoison_filter(struct page *p);