139 file_ra_state_init(struct file_ra_state *ra, struct address_space *mapping)  in file_ra_state_init()  argument
141 	ra->ra_pages = inode_to_bdi(mapping->host)->ra_pages;  in file_ra_state_init()
148 	const struct address_space_operations *aops = rac->mapping->a_ops;  in read_pages()
210 	struct address_space *mapping = ractl->mapping;  in page_cache_ra_unbounded()  local
212 	gfp_t gfp_mask = readahead_gfp_mask(mapping);  in page_cache_ra_unbounded()
214 	unsigned int min_nrpages = mapping_min_folio_nrpages(mapping);  in page_cache_ra_unbounded()
223 	 * filesystems already specify __GFP_NOFS in their mapping's  in page_cache_ra_unbounded()
228 	filemap_invalidate_lock_shared(mapping);  in page_cache_ra_unbounded()
229 	index = mapping_align_index(mapping, index);  in page_cache_ra_unbounded()
252 		struct folio *folio = xa_load(&mapping->i_pages, index + i);  in page_cache_ra_unbounded()
271 					mapping_min_folio_order(mapping));  in page_cache_ra_unbounded()
275 		ret = filemap_add_folio(mapping, folio, index + i, gfp_mask);  in page_cache_ra_unbounded()
298 	filemap_invalidate_unlock_shared(mapping);  in page_cache_ra_unbounded()
312 	struct inode *inode = ractl->mapping->host;  in do_page_cache_ra()
337 	struct address_space *mapping = ractl->mapping;  in force_page_cache_ra()  local
339 	struct backing_dev_info *bdi = inode_to_bdi(mapping->host);  in force_page_cache_ra()
342 	if (unlikely(!mapping->a_ops->read_folio && !mapping->a_ops->readahead))  in force_page_cache_ra()
448 	err = filemap_add_folio(ractl->mapping, folio, index, gfp);  in ra_alloc_folio()
462 	struct address_space *mapping = ractl->mapping;  in page_cache_ra_order()  local
465 	unsigned int min_order = mapping_min_folio_order(mapping);  in page_cache_ra_order()
466 	pgoff_t limit = (i_size_read(mapping->host) - 1) >> PAGE_SHIFT;  in page_cache_ra_order()
470 	gfp_t gfp = readahead_gfp_mask(mapping);  in page_cache_ra_order()
471 	unsigned int min_ra_size = max(4, mapping_min_folio_nrpages(mapping));  in page_cache_ra_order()
477 	if (!mapping_large_folio_support(mapping) || ra->size < min_ra_size)  in page_cache_ra_order()
482 	if (new_order < mapping_max_folio_order(mapping))  in page_cache_ra_order()
485 	new_order = min(mapping_max_folio_order(mapping), new_order);  in page_cache_ra_order()
491 	filemap_invalidate_lock_shared(mapping);  in page_cache_ra_order()
497 	ractl->_index = mapping_align_index(mapping, index);  in page_cache_ra_order()
516 	filemap_invalidate_unlock_shared(mapping);  in page_cache_ra_order()
539 	struct backing_dev_info *bdi = inode_to_bdi(ractl->mapping->host);  in ractl_max_pages()
599 	miss = page_cache_prev_miss(ractl->mapping, index - 1, max_pages);  in page_cache_sync_ra()
674 	start = page_cache_next_miss(ractl->mapping, index + 1, max_pages);  in page_cache_async_ra()
744 	struct address_space *mapping = ractl->mapping;  in readahead_expand()  local
747 	gfp_t gfp_mask = readahead_gfp_mask(mapping);  in readahead_expand()
748 	unsigned long min_nrpages = mapping_min_folio_nrpages(mapping);  in readahead_expand()
749 	unsigned int min_order = mapping_min_folio_order(mapping);  in readahead_expand()
761 		struct folio *folio = xa_load(&mapping->i_pages, index);  in readahead_expand()
770 		index = mapping_align_index(mapping, index);  in readahead_expand()
771 		if (filemap_add_folio(mapping, folio, index, gfp_mask) < 0) {  in readahead_expand()
790 		struct folio *folio = xa_load(&mapping->i_pages, index);  in readahead_expand()
799 		index = mapping_align_index(mapping, index);  in readahead_expand()
800 		if (filemap_add_folio(mapping, folio, index, gfp_mask) < 0) {  in readahead_expand()