21 unsigned long invalidate_mapping_pages(struct address_space *mapping,
30 int invalidate_inode_pages2(struct address_space *mapping);
31 int invalidate_inode_pages2_range(struct address_space *mapping,
39 int filemap_fdatawait_keep_errors(struct address_space *mapping);
41 int filemap_fdatawait_range_keep_errors(struct address_space *mapping,
44 static inline int filemap_fdatawait(struct address_space *mapping)  in filemap_fdatawait()  argument
46 	return filemap_fdatawait_range(mapping, 0, LLONG_MAX);  in filemap_fdatawait()
50 int filemap_write_and_wait_range(struct address_space *mapping,
52 int __filemap_fdatawrite_range(struct address_space *mapping,
54 int filemap_fdatawrite_range(struct address_space *mapping,
56 int filemap_check_errors(struct address_space *mapping);
57 void __filemap_set_wb_err(struct address_space *mapping, int err);
58 int filemap_fdatawrite_wbc(struct address_space *mapping,
62 static inline int filemap_write_and_wait(struct address_space *mapping)  in filemap_write_and_wait()  argument
64 	return filemap_write_and_wait_range(mapping, 0, LLONG_MAX);  in filemap_write_and_wait()
69  * @mapping: mapping in which to set writeback error
70  * @err: error to be set in mapping
78  * filemap_set_wb_err to record the error in the mapping so that it will be
81 static inline void filemap_set_wb_err(struct address_space *mapping, int err)  in filemap_set_wb_err()  argument
85 		__filemap_set_wb_err(mapping, err);  in filemap_set_wb_err()
90  * @mapping: mapping to check for writeback errors
93  * Grab the errseq_t value from the mapping, and see if it has changed "since"
98 static inline int filemap_check_wb_err(struct address_space *mapping,  in filemap_check_wb_err()  argument
101 	return errseq_check(&mapping->wb_err, since);  in filemap_check_wb_err()
106  * @mapping: mapping to be sampled
111 static inline errseq_t filemap_sample_wb_err(struct address_space *mapping)  in filemap_sample_wb_err()  argument
113 	return errseq_sample(&mapping->wb_err);  in filemap_sample_wb_err()
139 static inline bool mapping_empty(struct address_space *mapping)  in mapping_empty()  argument
141 	return xa_empty(&mapping->i_pages);  in mapping_empty()
146  * @mapping: the page cache mapping
148  * This checks the mapping's cache state for the pupose of inode
165 static inline bool mapping_shrinkable(struct address_space *mapping)  in mapping_shrinkable()  argument
178 	head = rcu_access_pointer(mapping->i_pages.xa_head);  in mapping_shrinkable()
195  * Bits in mapping->flags.
211  * @mapping: the mapping in which an error should be set
212  * @error: the error to set in the mapping
220  * mapping_set_error to record the error in the mapping so that it can be
223 static inline void mapping_set_error(struct address_space *mapping, int error)  in mapping_set_error()  argument
229 	__filemap_set_wb_err(mapping, error);  in mapping_set_error()
232 	if (mapping->host)  in mapping_set_error()
233 		errseq_set(&mapping->host->i_sb->s_wb_err, error);  in mapping_set_error()
237 		set_bit(AS_ENOSPC, &mapping->flags);  in mapping_set_error()
239 		set_bit(AS_EIO, &mapping->flags);  in mapping_set_error()
242 static inline void mapping_set_unevictable(struct address_space *mapping)  in mapping_set_unevictable()  argument
244 	set_bit(AS_UNEVICTABLE, &mapping->flags);  in mapping_set_unevictable()
247 static inline void mapping_clear_unevictable(struct address_space *mapping)  in mapping_clear_unevictable()  argument
249 	clear_bit(AS_UNEVICTABLE, &mapping->flags);  in mapping_clear_unevictable()
252 static inline bool mapping_unevictable(struct address_space *mapping)  in mapping_unevictable()  argument
254 	return mapping && test_bit(AS_UNEVICTABLE, &mapping->flags);  in mapping_unevictable()
257 static inline void mapping_set_exiting(struct address_space *mapping)  in mapping_set_exiting()  argument
259 	set_bit(AS_EXITING, &mapping->flags);  in mapping_set_exiting()
262 static inline int mapping_exiting(struct address_space *mapping)  in mapping_exiting()  argument
264 	return test_bit(AS_EXITING, &mapping->flags);  in mapping_exiting()
267 static inline void mapping_set_no_writeback_tags(struct address_space *mapping)  in mapping_set_no_writeback_tags()  argument
269 	set_bit(AS_NO_WRITEBACK_TAGS, &mapping->flags);  in mapping_set_no_writeback_tags()
272 static inline int mapping_use_writeback_tags(struct address_space *mapping)  in mapping_use_writeback_tags()  argument
274 	return !test_bit(AS_NO_WRITEBACK_TAGS, &mapping->flags);  in mapping_use_writeback_tags()
277 static inline bool mapping_release_always(const struct address_space *mapping)  in mapping_release_always()  argument
279 	return test_bit(AS_RELEASE_ALWAYS, &mapping->flags);  in mapping_release_always()
282 static inline void mapping_set_release_always(struct address_space *mapping)  in mapping_set_release_always()  argument
284 	set_bit(AS_RELEASE_ALWAYS, &mapping->flags);  in mapping_set_release_always()
287 static inline void mapping_clear_release_always(struct address_space *mapping)  in mapping_clear_release_always()  argument
289 	clear_bit(AS_RELEASE_ALWAYS, &mapping->flags);  in mapping_clear_release_always()
292 static inline gfp_t mapping_gfp_mask(struct address_space * mapping)  in mapping_gfp_mask()  argument
294 	return mapping->gfp_mask;  in mapping_gfp_mask()
297 /* Restricts the given gfp_mask to what the mapping allows. */
298 static inline gfp_t mapping_gfp_constraint(struct address_space *mapping,  in mapping_gfp_constraint()  argument
301 	return mapping_gfp_mask(mapping) & gfp_mask;  in mapping_gfp_constraint()
305  * This is non-atomic.  Only to be used before the mapping is activated.
315  * @mapping: The file.
324 static inline void mapping_set_large_folios(struct address_space *mapping)  in mapping_set_large_folios()  argument
326 	__set_bit(AS_LARGE_FOLIO_SUPPORT, &mapping->flags);  in mapping_set_large_folios()
333 static inline bool mapping_large_folio_support(struct address_space *mapping)  in mapping_large_folio_support()  argument
336 		test_bit(AS_LARGE_FOLIO_SUPPORT, &mapping->flags);  in mapping_large_folio_support()
339 static inline int filemap_nr_thps(struct address_space *mapping)  in filemap_nr_thps()  argument
342 	return atomic_read(&mapping->nr_thps);  in filemap_nr_thps()
348 static inline void filemap_nr_thps_inc(struct address_space *mapping)  in filemap_nr_thps_inc()  argument
351 	if (!mapping_large_folio_support(mapping))  in filemap_nr_thps_inc()
352 		atomic_inc(&mapping->nr_thps);  in filemap_nr_thps_inc()
354 	WARN_ON_ONCE(mapping_large_folio_support(mapping) == 0);  in filemap_nr_thps_inc()
358 static inline void filemap_nr_thps_dec(struct address_space *mapping)  in filemap_nr_thps_dec()  argument
361 	if (!mapping_large_folio_support(mapping))  in filemap_nr_thps_dec()
362 		atomic_dec(&mapping->nr_thps);  in filemap_nr_thps_dec()
364 	WARN_ON_ONCE(mapping_large_folio_support(mapping) == 0);  in filemap_nr_thps_dec()
373  * folio_file_mapping - Find the mapping this folio belongs to.
376  * For folios which are in the page cache, return the mapping that this
377  * page belongs to.  Folios in the swap cache return the mapping of the
379  * from the mapping returned by folio_mapping().  The only reason to
389 	return folio->mapping;  in folio_file_mapping()
393  * folio_flush_mapping - Find the file mapping this folio belongs to.
396  * For folios which are in the page cache, return the mapping that this
428 	return folio->mapping->host;  in folio_inode()
536 pgoff_t page_cache_next_miss(struct address_space *mapping,
538 pgoff_t page_cache_prev_miss(struct address_space *mapping,
599 void *filemap_get_entry(struct address_space *mapping, pgoff_t index);
600 struct folio *__filemap_get_folio(struct address_space *mapping, pgoff_t index,
602 struct page *pagecache_get_page(struct address_space *mapping, pgoff_t index,
607  * @mapping: The address_space to search.
610  * Looks up the page cache entry at @mapping & @index.  If a folio is
616 static inline struct folio *filemap_get_folio(struct address_space *mapping,  in filemap_get_folio()  argument
619 	return __filemap_get_folio(mapping, index, 0, 0);  in filemap_get_folio()
624  * @mapping: The address_space to search.
627  * Looks up the page cache entry at @mapping & @index.  If a folio is
634 static inline struct folio *filemap_lock_folio(struct address_space *mapping,  in filemap_lock_folio()  argument
637 	return __filemap_get_folio(mapping, index, FGP_LOCK, 0);  in filemap_lock_folio()
642  * @mapping: The address space to search
645  * Looks up the page cache entry at @mapping & @index. If no folio is found,
652 static inline struct folio *filemap_grab_folio(struct address_space *mapping,  in filemap_grab_folio()  argument
655 	return __filemap_get_folio(mapping, index,  in filemap_grab_folio()
657 			mapping_gfp_mask(mapping));  in filemap_grab_folio()
662  * @mapping: the address_space to search
665  * Looks up the page cache slot at @mapping & @offset.  If there is a
670 static inline struct page *find_get_page(struct address_space *mapping,  in find_get_page()  argument
673 	return pagecache_get_page(mapping, offset, 0, 0);  in find_get_page()
676 static inline struct page *find_get_page_flags(struct address_space *mapping,  in find_get_page_flags()  argument
679 	return pagecache_get_page(mapping, offset, fgp_flags, 0);  in find_get_page_flags()
684  * @mapping: the address_space to search
687  * Looks up the page cache entry at @mapping & @index.  If there is a
695 static inline struct page *find_lock_page(struct address_space *mapping,  in find_lock_page()  argument
698 	return pagecache_get_page(mapping, index, FGP_LOCK, 0);  in find_lock_page()
703  * @mapping: the page's address_space
704  * @index: the page's index into the mapping
707  * Looks up the page cache slot at @mapping & @offset.  If there is a
720 static inline struct page *find_or_create_page(struct address_space *mapping,  in find_or_create_page()  argument
723 	return pagecache_get_page(mapping, index,  in find_or_create_page()
730  * @mapping: target address_space
741 static inline struct page *grab_cache_page_nowait(struct address_space *mapping,  in grab_cache_page_nowait()  argument
744 	return pagecache_get_page(mapping, index,  in grab_cache_page_nowait()
746 			mapping_gfp_mask(mapping));  in grab_cache_page_nowait()
829 unsigned filemap_get_folios(struct address_space *mapping, pgoff_t *start,
831 unsigned filemap_get_folios_contig(struct address_space *mapping,
833 unsigned filemap_get_folios_tag(struct address_space *mapping, pgoff_t *start,
836 struct page *grab_cache_page_write_begin(struct address_space *mapping,
842 static inline struct page *grab_cache_page(struct address_space *mapping,  in grab_cache_page()  argument
845 	return find_or_create_page(mapping, index, mapping_gfp_mask(mapping));  in grab_cache_page()
854 extern struct page * read_cache_page_gfp(struct address_space *mapping,
857 static inline struct page *read_mapping_page(struct address_space *mapping,  in read_mapping_page()  argument
860 	return read_cache_page(mapping, index, NULL, file);  in read_mapping_page()
863 static inline struct folio *read_mapping_folio(struct address_space *mapping,  in read_mapping_folio()  argument
866 	return read_cache_folio(mapping, index, NULL, file);  in read_mapping_folio()
1024  * is sufficient to keep folio->mapping stable.
1141 		struct address_space *mapping, int warn)  in __set_page_dirty()  argument
1143 	__folio_mark_dirty(page_folio(page), mapping, warn);  in __set_page_dirty()
1157 bool noop_dirty_folio(struct address_space *mapping, struct folio *folio);
1160 int filemap_migrate_folio(struct address_space *mapping, struct folio *dst,
1182 int add_to_page_cache_lru(struct page *page, struct address_space *mapping,
1184 int filemap_add_folio(struct address_space *mapping, struct folio *folio,
1189 void delete_from_page_cache_batch(struct address_space *mapping,
1196 int __filemap_add_folio(struct address_space *mapping, struct folio *folio,
1199 bool filemap_range_has_writeback(struct address_space *mapping,
1204  * @mapping:           address space within which to check
1216 static inline bool filemap_range_needs_writeback(struct address_space *mapping,  in filemap_range_needs_writeback()  argument
1220 	if (!mapping->nrpages)  in filemap_range_needs_writeback()
1222 	if (!mapping_tagged(mapping, PAGECACHE_TAG_DIRTY) &&  in filemap_range_needs_writeback()
1223 	    !mapping_tagged(mapping, PAGECACHE_TAG_WRITEBACK))  in filemap_range_needs_writeback()
1225 	return filemap_range_has_writeback(mapping, start_byte, end_byte);  in filemap_range_needs_writeback()
1241  * @mapping: Readahead this filesystem object.
1246 	struct address_space *mapping;  member
1259 		.mapping = m,						\
1276  * @mapping: address_space which holds the pagecache and I/O vectors
1288 void page_cache_sync_readahead(struct address_space *mapping,  in page_cache_sync_readahead()  argument
1292 	DEFINE_READAHEAD(ractl, file, ra, mapping, index);  in page_cache_sync_readahead()
1298  * @mapping: address_space which holds the pagecache and I/O vectors
1311 void page_cache_async_readahead(struct address_space *mapping,  in page_cache_async_readahead()  argument
1315 	DEFINE_READAHEAD(ractl, file, ra, mapping, index);  in page_cache_async_readahead()
1332 	folio = xa_load(&ractl->mapping->i_pages, ractl->_index);  in __readahead_folio()
1376 	XA_STATE(xas, &rac->mapping->i_pages, 0);  in __readahead_batch()
1481 	if (!folio->mapping)  in folio_mkwrite_check_truncate()
1509 	if (page->mapping != inode->i_mapping)  in page_mkwrite_check_truncate()