20 static inline void set_page_count(struct page *page, int v)  in set_page_count()  argument
22 	atomic_set(&page->_count, v);  in set_page_count()
43 static inline void set_page_refcounted(struct page *page)  in set_page_refcounted()  argument
45 	VM_BUG_ON_PAGE(PageTail(page), page);  in set_page_refcounted()
46 	VM_BUG_ON_PAGE(atomic_read(&page->_count), page);  in set_page_refcounted()
47 	set_page_count(page, 1);  in set_page_refcounted()
50 static inline void __get_page_tail_foll(struct page *page,  in __get_page_tail_foll()  argument
64 	VM_BUG_ON_PAGE(atomic_read(&page->first_page->_count) <= 0, page);  in __get_page_tail_foll()
66 		atomic_inc(&page->first_page->_count);  in __get_page_tail_foll()
67 	get_huge_page_tail(page);  in __get_page_tail_foll()
75 static inline void get_page_foll(struct page *page)  in get_page_foll()  argument
77 	if (unlikely(PageTail(page)))  in get_page_foll()
83 		__get_page_tail_foll(page, true);  in get_page_foll()
89 		VM_BUG_ON_PAGE(atomic_read(&page->_count) <= 0, page);  in get_page_foll()
90 		atomic_inc(&page->_count);  in get_page_foll()
99 extern int isolate_lru_page(struct page *page);
100 extern void putback_lru_page(struct page *page);
157 extern int __isolate_free_page(struct page *page, unsigned int order);
158 extern void __free_pages_bootmem(struct page *page, unsigned long pfn,
160 extern void prep_compound_page(struct page *page, unsigned int order);
162 extern bool is_free_buddy_page(struct page *page);
217 static inline unsigned int page_order(struct page *page)  in page_order()  argument
220 	return page_private(page);  in page_order()
234 #define page_order_unsafe(page)		READ_ONCE(page_private(page))  argument
258 extern void mlock_vma_page(struct page *page);
259 extern unsigned int munlock_vma_page(struct page *page);
270 extern void clear_page_mlock(struct page *page);
276 static inline void mlock_migrate_page(struct page *newpage, struct page *page)  in mlock_migrate_page()  argument
278 	if (TestClearPageMlocked(page)) {  in mlock_migrate_page()
280 		int nr_pages = hpage_nr_pages(page);  in mlock_migrate_page()
283 		__mod_zone_page_state(page_zone(page), NR_MLOCK, -nr_pages);  in mlock_migrate_page()
293 extern unsigned long vma_address(struct page *page,
297 static inline void clear_page_mlock(struct page *page) { }  in clear_page_mlock()  argument
298 static inline void mlock_vma_page(struct page *page) { }  in mlock_vma_page()  argument
299 static inline void mlock_migrate_page(struct page *new, struct page *old) { }  in mlock_migrate_page()
308 static inline struct page *mem_map_offset(struct page *base, int offset)  in mem_map_offset()
319 static inline struct page *mem_map_next(struct page *iter,  in mem_map_next()
320 						struct page *base, int offset)  in mem_map_next()
365 extern void mminit_verify_page_links(struct page *page,
380 static inline void mminit_verify_page_links(struct page *page,  in mminit_verify_page_links()  argument
406 extern int hwpoison_filter(struct page *p);