137 	struct page * (*nopage)(struct vm_area_struct * area, unsigned long address, int unused);
155 typedef struct page {  struct
159 	struct page *next_hash;		/* Next page sharing our hash bucket in  argument
166 	struct page **pprev_hash;	/* Complement to *next_hash. */  argument
203 static inline struct page *nth_page(struct page *page, int n)  in nth_page()  argument
205 	return page + n;  in nth_page()
311 #define arch_set_page_uptodate(page)  argument
315 #define UnlockPage(page)	unlock_page(page)  argument
316 #define Page_Uptodate(page)	test_bit(PG_uptodate, &(page)->flags)  argument
318 #define SetPageUptodate(page)	set_bit(PG_uptodate, &(page)->flags)  argument
320 #define ClearPageUptodate(page)	clear_bit(PG_uptodate, &(page)->flags)  argument
321 #define PageDirty(page)		test_bit(PG_dirty, &(page)->flags)  argument
322 #define SetPageDirty(page)	set_bit(PG_dirty, &(page)->flags)  argument
323 #define ClearPageDirty(page)	clear_bit(PG_dirty, &(page)->flags)  argument
324 #define PageLocked(page)	test_bit(PG_locked, &(page)->flags)  argument
325 #define LockPage(page)		set_bit(PG_locked, &(page)->flags)  argument
326 #define TryLockPage(page)	test_and_set_bit(PG_locked, &(page)->flags)  argument
327 #define PageChecked(page)	test_bit(PG_checked, &(page)->flags)  argument
328 #define SetPageChecked(page)	set_bit(PG_checked, &(page)->flags)  argument
329 #define ClearPageChecked(page)	clear_bit(PG_checked, &(page)->flags)  argument
330 #define PageLaunder(page)	test_bit(PG_launder, &(page)->flags)  argument
331 #define SetPageLaunder(page)	set_bit(PG_launder, &(page)->flags)  argument
332 #define ClearPageLaunder(page)	clear_bit(PG_launder, &(page)->flags)  argument
333 #define ClearPageArch1(page)	clear_bit(PG_arch_1, &(page)->flags)  argument
345 static inline zone_t *page_zone(struct page *page)  in page_zone()  argument
347 	return zone_table[page->flags >> ZONE_SHIFT];  in page_zone()
350 static inline void set_page_zone(struct page *page, unsigned long zone_num)  in set_page_zone()  argument
352 	page->flags &= ~(~0UL << ZONE_SHIFT);  in set_page_zone()
353 	page->flags |= zone_num << ZONE_SHIFT;  in set_page_zone()
364 #define set_page_address(page, address)			\  argument
366 		(page)->virtual = (address);		\
370 #define set_page_address(page, address)  do { } while(0)  argument
379 #define page_address(page) ((page)->virtual)  argument
383 #define page_address(page)						\  argument
384 	__va( (((page) - page_zone(page)->zone_mem_map) << PAGE_SHIFT)	\
385 			+ page_zone(page)->zone_start_paddr)
389 extern void FASTCALL(set_page_dirty(struct page *));
397 #define PageError(page)		test_bit(PG_error, &(page)->flags)  argument
398 #define SetPageError(page)	set_bit(PG_error, &(page)->flags)  argument
399 #define ClearPageError(page)	clear_bit(PG_error, &(page)->flags)  argument
400 #define PageReferenced(page)	test_bit(PG_referenced, &(page)->flags)  argument
401 #define SetPageReferenced(page)	set_bit(PG_referenced, &(page)->flags)  argument
402 #define ClearPageReferenced(page)	clear_bit(PG_referenced, &(page)->flags)  argument
403 #define PageTestandClearReferenced(page)	test_and_clear_bit(PG_referenced, &(page)->flags)  argument
404 #define PageSlab(page)		test_bit(PG_slab, &(page)->flags)  argument
405 #define PageSetSlab(page)	set_bit(PG_slab, &(page)->flags)  argument
406 #define PageClearSlab(page)	clear_bit(PG_slab, &(page)->flags)  argument
407 #define PageReserved(page)	test_bit(PG_reserved, &(page)->flags)  argument
409 #define PageActive(page)	test_bit(PG_active, &(page)->flags)  argument
410 #define SetPageActive(page)	set_bit(PG_active, &(page)->flags)  argument
411 #define ClearPageActive(page)	clear_bit(PG_active, &(page)->flags)  argument
413 #define PageLRU(page)		test_bit(PG_lru, &(page)->flags)  argument
414 #define TestSetPageLRU(page)	test_and_set_bit(PG_lru, &(page)->flags)  argument
415 #define TestClearPageLRU(page)	test_and_clear_bit(PG_lru, &(page)->flags)  argument
418 #define PageHighMem(page)		test_bit(PG_highmem, &(page)->flags)  argument
420 #define PageHighMem(page)		0 /* needed to optimize away at compile time */  argument
423 #define SetPageReserved(page)		set_bit(PG_reserved, &(page)->flags)  argument
424 #define ClearPageReserved(page)		clear_bit(PG_reserved, &(page)->flags)  argument
430 #define NOPAGE_OOM	((struct page *) (-1))
441 extern struct page * FASTCALL(_alloc_pages(unsigned int gfp_mask, unsigned int order));
442 extern struct page * FASTCALL(__alloc_pages(unsigned int gfp_mask, unsigned int order, zonelist_t *…
443 extern struct page * alloc_pages_node(int nid, unsigned int gfp_mask, unsigned int order);
445 static inline struct page * alloc_pages(unsigned int gfp_mask, unsigned int order)  in alloc_pages()
474 extern void FASTCALL(__free_pages(struct page *page, unsigned int order));
477 #define __free_page(page) __free_pages((page), 0)  argument
485 extern int fail_writepage(struct page *);
486 struct page * shmem_nopage(struct vm_area_struct * vma, unsigned long address, int unused);
510 		int len, int write, int force, struct page **pages, struct vm_area_struct **vmas);
528 extern void free_area_init_node(int nid, pg_data_t *pgdat, struct page *pmap,
537 #define PageSwapCache(page) ((page)->mapping == &swapper_space)  argument
539 static inline int is_page_cache_freeable(struct page * page)  in is_page_cache_freeable()  argument
541 	return page_count(page) - !!page->buffers == 1;  in is_page_cache_freeable()
544 extern int FASTCALL(can_share_swap_page(struct page *));
545 extern int FASTCALL(remove_exclusive_swap_page(struct page *));
598 extern void remove_inode_page(struct page *);
599 extern unsigned long page_unuse(struct page *);
604 extern struct page *filemap_nopage(struct vm_area_struct *, unsigned long, int);
710 extern struct page * vmalloc_to_page(void *addr);