22  * Bits in mapping->flags.
37  * @mapping: the mapping in which an error should be set
38  * @error: the error to set in the mapping
46  * mapping_set_error to record the error in the mapping so that it can be
49 static inline void mapping_set_error(struct address_space *mapping, int error)  in mapping_set_error()  argument
55 	__filemap_set_wb_err(mapping, error);  in mapping_set_error()
58 	if (mapping->host)  in mapping_set_error()
59 		errseq_set(&mapping->host->i_sb->s_wb_err, error);  in mapping_set_error()
63 		set_bit(AS_ENOSPC, &mapping->flags);  in mapping_set_error()
65 		set_bit(AS_EIO, &mapping->flags);  in mapping_set_error()
68 static inline void mapping_set_unevictable(struct address_space *mapping)  in mapping_set_unevictable()  argument
70 	set_bit(AS_UNEVICTABLE, &mapping->flags);  in mapping_set_unevictable()
73 static inline void mapping_clear_unevictable(struct address_space *mapping)  in mapping_clear_unevictable()  argument
75 	clear_bit(AS_UNEVICTABLE, &mapping->flags);  in mapping_clear_unevictable()
78 static inline bool mapping_unevictable(struct address_space *mapping)  in mapping_unevictable()  argument
80 	return mapping && test_bit(AS_UNEVICTABLE, &mapping->flags);  in mapping_unevictable()
83 static inline void mapping_set_exiting(struct address_space *mapping)  in mapping_set_exiting()  argument
85 	set_bit(AS_EXITING, &mapping->flags);  in mapping_set_exiting()
88 static inline int mapping_exiting(struct address_space *mapping)  in mapping_exiting()  argument
90 	return test_bit(AS_EXITING, &mapping->flags);  in mapping_exiting()
93 static inline void mapping_set_no_writeback_tags(struct address_space *mapping)  in mapping_set_no_writeback_tags()  argument
95 	set_bit(AS_NO_WRITEBACK_TAGS, &mapping->flags);  in mapping_set_no_writeback_tags()
98 static inline int mapping_use_writeback_tags(struct address_space *mapping)  in mapping_use_writeback_tags()  argument
100 	return !test_bit(AS_NO_WRITEBACK_TAGS, &mapping->flags);  in mapping_use_writeback_tags()
103 static inline gfp_t mapping_gfp_mask(struct address_space * mapping)  in mapping_gfp_mask()  argument
105 	return mapping->gfp_mask;  in mapping_gfp_mask()
108 /* Restricts the given gfp_mask to what the mapping allows. */
109 static inline gfp_t mapping_gfp_constraint(struct address_space *mapping,  in mapping_gfp_constraint()  argument
112 	return mapping_gfp_mask(mapping) & gfp_mask;  in mapping_gfp_constraint()
116  * This is non-atomic.  Only to be used before the mapping is activated.
124 static inline bool mapping_thp_support(struct address_space *mapping)  in mapping_thp_support()  argument
126 	return test_bit(AS_THP_SUPPORT, &mapping->flags);  in mapping_thp_support()
129 static inline int filemap_nr_thps(struct address_space *mapping)  in filemap_nr_thps()  argument
132 	return atomic_read(&mapping->nr_thps);  in filemap_nr_thps()
138 static inline void filemap_nr_thps_inc(struct address_space *mapping)  in filemap_nr_thps_inc()  argument
141 	if (!mapping_thp_support(mapping))  in filemap_nr_thps_inc()
142 		atomic_inc(&mapping->nr_thps);  in filemap_nr_thps_inc()
148 static inline void filemap_nr_thps_dec(struct address_space *mapping)  in filemap_nr_thps_dec()  argument
151 	if (!mapping_thp_support(mapping))  in filemap_nr_thps_dec()
152 		atomic_dec(&mapping->nr_thps);  in filemap_nr_thps_dec()
305 pgoff_t page_cache_next_miss(struct address_space *mapping,
307 pgoff_t page_cache_prev_miss(struct address_space *mapping,
319 struct page *pagecache_get_page(struct address_space *mapping, pgoff_t offset,
324  * @mapping: the address_space to search
327  * Looks up the page cache slot at @mapping & @offset.  If there is a
332 static inline struct page *find_get_page(struct address_space *mapping,  in find_get_page()  argument
335 	return pagecache_get_page(mapping, offset, 0, 0);  in find_get_page()
338 static inline struct page *find_get_page_flags(struct address_space *mapping,  in find_get_page_flags()  argument
341 	return pagecache_get_page(mapping, offset, fgp_flags, 0);  in find_get_page_flags()
346  * @mapping: the address_space to search
349  * Looks up the page cache entry at @mapping & @index.  If there is a
357 static inline struct page *find_lock_page(struct address_space *mapping,  in find_lock_page()  argument
360 	return pagecache_get_page(mapping, index, FGP_LOCK, 0);  in find_lock_page()
365  * @mapping: The address_space to search.
368  * Looks up the page cache entry at @mapping & @index.  If there is a
376 static inline struct page *find_lock_head(struct address_space *mapping,  in find_lock_head()  argument
379 	return pagecache_get_page(mapping, index, FGP_LOCK | FGP_HEAD, 0);  in find_lock_head()
384  * @mapping: the page's address_space
385  * @index: the page's index into the mapping
388  * Looks up the page cache slot at @mapping & @offset.  If there is a
401 static inline struct page *find_or_create_page(struct address_space *mapping,  in find_or_create_page()  argument
404 	return pagecache_get_page(mapping, index,  in find_or_create_page()
411  * @mapping: target address_space
422 static inline struct page *grab_cache_page_nowait(struct address_space *mapping,  in grab_cache_page_nowait()  argument
425 	return pagecache_get_page(mapping, index,  in grab_cache_page_nowait()
427 			mapping_gfp_mask(mapping));  in grab_cache_page_nowait()
452 unsigned find_get_entries(struct address_space *mapping, pgoff_t start,
455 unsigned find_get_pages_range(struct address_space *mapping, pgoff_t *start,
458 static inline unsigned find_get_pages(struct address_space *mapping,  in find_get_pages()  argument
462 	return find_get_pages_range(mapping, start, (pgoff_t)-1, nr_pages,  in find_get_pages()
465 unsigned find_get_pages_contig(struct address_space *mapping, pgoff_t start,
467 unsigned find_get_pages_range_tag(struct address_space *mapping, pgoff_t *index,
470 static inline unsigned find_get_pages_tag(struct address_space *mapping,  in find_get_pages_tag()  argument
474 	return find_get_pages_range_tag(mapping, index, (pgoff_t)-1, tag,  in find_get_pages_tag()
478 struct page *grab_cache_page_write_begin(struct address_space *mapping,
484 static inline struct page *grab_cache_page(struct address_space *mapping,  in grab_cache_page()  argument
487 	return find_or_create_page(mapping, index, mapping_gfp_mask(mapping));  in grab_cache_page()
490 extern struct page * read_cache_page(struct address_space *mapping,
492 extern struct page * read_cache_page_gfp(struct address_space *mapping,
494 extern int read_cache_pages(struct address_space *mapping,
497 static inline struct page *read_mapping_page(struct address_space *mapping,  in read_mapping_page()  argument
500 	return read_cache_page(mapping, index, NULL, data);  in read_mapping_page()
754 int add_to_page_cache_locked(struct page *page, struct address_space *mapping,
756 int add_to_page_cache_lru(struct page *page, struct address_space *mapping,
761 void delete_from_page_cache_batch(struct address_space *mapping,
769 		struct address_space *mapping, pgoff_t offset, gfp_t gfp_mask)  in add_to_page_cache()  argument
774 	error = add_to_page_cache_locked(page, mapping, offset, gfp_mask);  in add_to_page_cache()
793  * @mapping: Readahead this filesystem object.
797 	struct address_space *mapping;  member
807 		.mapping = m,						\
822  * @mapping: address_space which holds the pagecache and I/O vectors
834 void page_cache_sync_readahead(struct address_space *mapping,  in page_cache_sync_readahead()  argument
838 	DEFINE_READAHEAD(ractl, file, mapping, index);  in page_cache_sync_readahead()
844  * @mapping: address_space which holds the pagecache and I/O vectors
857 void page_cache_async_readahead(struct address_space *mapping,  in page_cache_async_readahead()  argument
861 	DEFINE_READAHEAD(ractl, file, mapping, index);  in page_cache_async_readahead()
887 	page = xa_load(&rac->mapping->i_pages, rac->_index);  in readahead_page()
898 	XA_STATE(xas, &rac->mapping->i_pages, 0);  in __readahead_batch()
1004 	if (page->mapping != inode->i_mapping)  in page_mkwrite_check_truncate()