22  * Bits in mapping->flags.
36  * @mapping - the mapping in which an error should be set
37  * @error - the error to set in the mapping
45  * mapping_set_error to record the error in the mapping so that it can be
48 static inline void mapping_set_error(struct address_space *mapping, int error)  in mapping_set_error()  argument
54 	filemap_set_wb_err(mapping, error);  in mapping_set_error()
58 		set_bit(AS_ENOSPC, &mapping->flags);  in mapping_set_error()
60 		set_bit(AS_EIO, &mapping->flags);  in mapping_set_error()
63 static inline void mapping_set_unevictable(struct address_space *mapping)  in mapping_set_unevictable()  argument
65 	set_bit(AS_UNEVICTABLE, &mapping->flags);  in mapping_set_unevictable()
68 static inline void mapping_clear_unevictable(struct address_space *mapping)  in mapping_clear_unevictable()  argument
70 	clear_bit(AS_UNEVICTABLE, &mapping->flags);  in mapping_clear_unevictable()
73 static inline int mapping_unevictable(struct address_space *mapping)  in mapping_unevictable()  argument
75 	if (mapping)  in mapping_unevictable()
76 		return test_bit(AS_UNEVICTABLE, &mapping->flags);  in mapping_unevictable()
77 	return !!mapping;  in mapping_unevictable()
80 static inline void mapping_set_exiting(struct address_space *mapping)  in mapping_set_exiting()  argument
82 	set_bit(AS_EXITING, &mapping->flags);  in mapping_set_exiting()
85 static inline int mapping_exiting(struct address_space *mapping)  in mapping_exiting()  argument
87 	return test_bit(AS_EXITING, &mapping->flags);  in mapping_exiting()
90 static inline void mapping_set_no_writeback_tags(struct address_space *mapping)  in mapping_set_no_writeback_tags()  argument
92 	set_bit(AS_NO_WRITEBACK_TAGS, &mapping->flags);  in mapping_set_no_writeback_tags()
95 static inline int mapping_use_writeback_tags(struct address_space *mapping)  in mapping_use_writeback_tags()  argument
97 	return !test_bit(AS_NO_WRITEBACK_TAGS, &mapping->flags);  in mapping_use_writeback_tags()
100 static inline gfp_t mapping_gfp_mask(struct address_space * mapping)  in mapping_gfp_mask()  argument
102 	return mapping->gfp_mask;  in mapping_gfp_mask()
105 /* Restricts the given gfp_mask to what the mapping allows. */
106 static inline gfp_t mapping_gfp_constraint(struct address_space *mapping,  in mapping_gfp_constraint()  argument
109 	return mapping_gfp_mask(mapping) & gfp_mask;  in mapping_gfp_constraint()
113  * This is non-atomic.  Only to be used before the mapping is activated.
231 pgoff_t page_cache_next_miss(struct address_space *mapping,
233 pgoff_t page_cache_prev_miss(struct address_space *mapping,
244 struct page *pagecache_get_page(struct address_space *mapping, pgoff_t offset,
249  * @mapping: the address_space to search
252  * Looks up the page cache slot at @mapping & @offset.  If there is a
257 static inline struct page *find_get_page(struct address_space *mapping,  in find_get_page()  argument
260 	return pagecache_get_page(mapping, offset, 0, 0);  in find_get_page()
263 static inline struct page *find_get_page_flags(struct address_space *mapping,  in find_get_page_flags()  argument
266 	return pagecache_get_page(mapping, offset, fgp_flags, 0);  in find_get_page_flags()
271  * @mapping: the address_space to search
274  * Looks up the page cache slot at @mapping & @offset.  If there is a
282 static inline struct page *find_lock_page(struct address_space *mapping,  in find_lock_page()  argument
285 	return pagecache_get_page(mapping, offset, FGP_LOCK, 0);  in find_lock_page()
290  * @mapping: the page's address_space
291  * @index: the page's index into the mapping
294  * Looks up the page cache slot at @mapping & @offset.  If there is a
307 static inline struct page *find_or_create_page(struct address_space *mapping,  in find_or_create_page()  argument
310 	return pagecache_get_page(mapping, offset,  in find_or_create_page()
317  * @mapping: target address_space
328 static inline struct page *grab_cache_page_nowait(struct address_space *mapping,  in grab_cache_page_nowait()  argument
331 	return pagecache_get_page(mapping, index,  in grab_cache_page_nowait()
333 			mapping_gfp_mask(mapping));  in grab_cache_page_nowait()
346 struct page *find_get_entry(struct address_space *mapping, pgoff_t offset);
347 struct page *find_lock_entry(struct address_space *mapping, pgoff_t offset);
348 unsigned find_get_entries(struct address_space *mapping, pgoff_t start,
351 unsigned find_get_pages_range(struct address_space *mapping, pgoff_t *start,
354 static inline unsigned find_get_pages(struct address_space *mapping,  in find_get_pages()  argument
358 	return find_get_pages_range(mapping, start, (pgoff_t)-1, nr_pages,  in find_get_pages()
361 unsigned find_get_pages_contig(struct address_space *mapping, pgoff_t start,
363 unsigned find_get_pages_range_tag(struct address_space *mapping, pgoff_t *index,
366 static inline unsigned find_get_pages_tag(struct address_space *mapping,  in find_get_pages_tag()  argument
370 	return find_get_pages_range_tag(mapping, index, (pgoff_t)-1, tag,  in find_get_pages_tag()
374 struct page *grab_cache_page_write_begin(struct address_space *mapping,
380 static inline struct page *grab_cache_page(struct address_space *mapping,  in grab_cache_page()  argument
383 	return find_or_create_page(mapping, index, mapping_gfp_mask(mapping));  in grab_cache_page()
386 extern struct page * read_cache_page(struct address_space *mapping,
388 extern struct page * read_cache_page_gfp(struct address_space *mapping,
390 extern int read_cache_pages(struct address_space *mapping,
393 static inline struct page *read_mapping_page(struct address_space *mapping,  in read_mapping_page()  argument
396 	return read_cache_page(mapping, index, NULL, data);  in read_mapping_page()
607 int add_to_page_cache_locked(struct page *page, struct address_space *mapping,
609 int add_to_page_cache_lru(struct page *page, struct address_space *mapping,
614 void delete_from_page_cache_batch(struct address_space *mapping,
622 		struct address_space *mapping, pgoff_t offset, gfp_t gfp_mask)  in add_to_page_cache()  argument
627 	error = add_to_page_cache_locked(page, mapping, offset, gfp_mask);  in add_to_page_cache()