21 static inline bool mapping_empty(struct address_space *mapping)  in mapping_empty()  argument
23 	return xa_empty(&mapping->i_pages);  in mapping_empty()
27  * Bits in mapping->flags.
42  * @mapping: the mapping in which an error should be set
43  * @error: the error to set in the mapping
51  * mapping_set_error to record the error in the mapping so that it can be
54 static inline void mapping_set_error(struct address_space *mapping, int error)  in mapping_set_error()  argument
60 	__filemap_set_wb_err(mapping, error);  in mapping_set_error()
63 	if (mapping->host)  in mapping_set_error()
64 		errseq_set(&mapping->host->i_sb->s_wb_err, error);  in mapping_set_error()
68 		set_bit(AS_ENOSPC, &mapping->flags);  in mapping_set_error()
70 		set_bit(AS_EIO, &mapping->flags);  in mapping_set_error()
73 static inline void mapping_set_unevictable(struct address_space *mapping)  in mapping_set_unevictable()  argument
75 	set_bit(AS_UNEVICTABLE, &mapping->flags);  in mapping_set_unevictable()
78 static inline void mapping_clear_unevictable(struct address_space *mapping)  in mapping_clear_unevictable()  argument
80 	clear_bit(AS_UNEVICTABLE, &mapping->flags);  in mapping_clear_unevictable()
83 static inline bool mapping_unevictable(struct address_space *mapping)  in mapping_unevictable()  argument
85 	return mapping && test_bit(AS_UNEVICTABLE, &mapping->flags);  in mapping_unevictable()
88 static inline void mapping_set_exiting(struct address_space *mapping)  in mapping_set_exiting()  argument
90 	set_bit(AS_EXITING, &mapping->flags);  in mapping_set_exiting()
93 static inline int mapping_exiting(struct address_space *mapping)  in mapping_exiting()  argument
95 	return test_bit(AS_EXITING, &mapping->flags);  in mapping_exiting()
98 static inline void mapping_set_no_writeback_tags(struct address_space *mapping)  in mapping_set_no_writeback_tags()  argument
100 	set_bit(AS_NO_WRITEBACK_TAGS, &mapping->flags);  in mapping_set_no_writeback_tags()
103 static inline int mapping_use_writeback_tags(struct address_space *mapping)  in mapping_use_writeback_tags()  argument
105 	return !test_bit(AS_NO_WRITEBACK_TAGS, &mapping->flags);  in mapping_use_writeback_tags()
108 static inline gfp_t mapping_gfp_mask(struct address_space * mapping)  in mapping_gfp_mask()  argument
110 	return mapping->gfp_mask;  in mapping_gfp_mask()
113 /* Restricts the given gfp_mask to what the mapping allows. */
114 static inline gfp_t mapping_gfp_constraint(struct address_space *mapping,  in mapping_gfp_constraint()  argument
117 	return mapping_gfp_mask(mapping) & gfp_mask;  in mapping_gfp_constraint()
121  * This is non-atomic.  Only to be used before the mapping is activated.
129 static inline bool mapping_thp_support(struct address_space *mapping)  in mapping_thp_support()  argument
131 	return test_bit(AS_THP_SUPPORT, &mapping->flags);  in mapping_thp_support()
134 static inline int filemap_nr_thps(struct address_space *mapping)  in filemap_nr_thps()  argument
137 	return atomic_read(&mapping->nr_thps);  in filemap_nr_thps()
143 static inline void filemap_nr_thps_inc(struct address_space *mapping)  in filemap_nr_thps_inc()  argument
146 	if (!mapping_thp_support(mapping))  in filemap_nr_thps_inc()
147 		atomic_inc(&mapping->nr_thps);  in filemap_nr_thps_inc()
153 static inline void filemap_nr_thps_dec(struct address_space *mapping)  in filemap_nr_thps_dec()  argument
156 	if (!mapping_thp_support(mapping))  in filemap_nr_thps_dec()
157 		atomic_dec(&mapping->nr_thps);  in filemap_nr_thps_dec()
320 pgoff_t page_cache_next_miss(struct address_space *mapping,
322 pgoff_t page_cache_prev_miss(struct address_space *mapping,
335 struct page *pagecache_get_page(struct address_space *mapping, pgoff_t offset,
340  * @mapping: the address_space to search
343  * Looks up the page cache slot at @mapping & @offset.  If there is a
348 static inline struct page *find_get_page(struct address_space *mapping,  in find_get_page()  argument
351 	return pagecache_get_page(mapping, offset, 0, 0);  in find_get_page()
354 static inline struct page *find_get_page_flags(struct address_space *mapping,  in find_get_page_flags()  argument
357 	return pagecache_get_page(mapping, offset, fgp_flags, 0);  in find_get_page_flags()
362  * @mapping: the address_space to search
365  * Looks up the page cache entry at @mapping & @index.  If there is a
373 static inline struct page *find_lock_page(struct address_space *mapping,  in find_lock_page()  argument
376 	return pagecache_get_page(mapping, index, FGP_LOCK, 0);  in find_lock_page()
381  * @mapping: The address_space to search.
384  * Looks up the page cache entry at @mapping & @index.  If there is a
392 static inline struct page *find_lock_head(struct address_space *mapping,  in find_lock_head()  argument
395 	return pagecache_get_page(mapping, index, FGP_LOCK | FGP_HEAD, 0);  in find_lock_head()
400  * @mapping: the page's address_space
401  * @index: the page's index into the mapping
404  * Looks up the page cache slot at @mapping & @offset.  If there is a
417 static inline struct page *find_or_create_page(struct address_space *mapping,  in find_or_create_page()  argument
420 	return pagecache_get_page(mapping, index,  in find_or_create_page()
427  * @mapping: target address_space
438 static inline struct page *grab_cache_page_nowait(struct address_space *mapping,  in grab_cache_page_nowait()  argument
441 	return pagecache_get_page(mapping, index,  in grab_cache_page_nowait()
443 			mapping_gfp_mask(mapping));  in grab_cache_page_nowait()
468 unsigned find_get_entries(struct address_space *mapping, pgoff_t start,
470 unsigned find_get_pages_range(struct address_space *mapping, pgoff_t *start,
473 static inline unsigned find_get_pages(struct address_space *mapping,  in find_get_pages()  argument
477 	return find_get_pages_range(mapping, start, (pgoff_t)-1, nr_pages,  in find_get_pages()
480 unsigned find_get_pages_contig(struct address_space *mapping, pgoff_t start,
482 unsigned find_get_pages_range_tag(struct address_space *mapping, pgoff_t *index,
485 static inline unsigned find_get_pages_tag(struct address_space *mapping,  in find_get_pages_tag()  argument
489 	return find_get_pages_range_tag(mapping, index, (pgoff_t)-1, tag,  in find_get_pages_tag()
493 struct page *grab_cache_page_write_begin(struct address_space *mapping,
499 static inline struct page *grab_cache_page(struct address_space *mapping,  in grab_cache_page()  argument
502 	return find_or_create_page(mapping, index, mapping_gfp_mask(mapping));  in grab_cache_page()
505 extern struct page * read_cache_page(struct address_space *mapping,
507 extern struct page * read_cache_page_gfp(struct address_space *mapping,
509 extern int read_cache_pages(struct address_space *mapping,
512 static inline struct page *read_mapping_page(struct address_space *mapping,  in read_mapping_page()  argument
515 	return read_cache_page(mapping, index, NULL, data);  in read_mapping_page()
792 int add_to_page_cache_locked(struct page *page, struct address_space *mapping,
794 int add_to_page_cache_lru(struct page *page, struct address_space *mapping,
799 void delete_from_page_cache_batch(struct address_space *mapping,
809 		struct address_space *mapping, pgoff_t offset, gfp_t gfp_mask)  in add_to_page_cache()  argument
814 	error = add_to_page_cache_locked(page, mapping, offset, gfp_mask);  in add_to_page_cache()
833  * @mapping: Readahead this filesystem object.
838 	struct address_space *mapping;  member
849 		.mapping = m,						\
866  * @mapping: address_space which holds the pagecache and I/O vectors
878 void page_cache_sync_readahead(struct address_space *mapping,  in page_cache_sync_readahead()  argument
882 	DEFINE_READAHEAD(ractl, file, ra, mapping, index);  in page_cache_sync_readahead()
888  * @mapping: address_space which holds the pagecache and I/O vectors
901 void page_cache_async_readahead(struct address_space *mapping,  in page_cache_async_readahead()  argument
905 	DEFINE_READAHEAD(ractl, file, ra, mapping, index);  in page_cache_async_readahead()
931 	page = xa_load(&rac->mapping->i_pages, rac->_index);  in readahead_page()
942 	XA_STATE(xas, &rac->mapping->i_pages, 0);  in __readahead_batch()
1057 	if (page->mapping != inode->i_mapping)  in page_mkwrite_check_truncate()