142 file_ra_state_init(struct file_ra_state *ra, struct address_space *mapping)  in file_ra_state_init()  argument
144 	ra->ra_pages = inode_to_bdi(mapping->host)->ra_pages;  in file_ra_state_init()
151 	const struct address_space_operations *aops = rac->mapping->a_ops;  in read_pages()
207  * Context: File is referenced by caller, and ractl->mapping->invalidate_lock
214 	struct address_space *mapping = ractl->mapping;  in page_cache_ra_unbounded()  local
216 	gfp_t gfp_mask = readahead_gfp_mask(mapping);  in page_cache_ra_unbounded()
218 	unsigned int min_nrpages = mapping_min_folio_nrpages(mapping);  in page_cache_ra_unbounded()
227 	 * filesystems already specify __GFP_NOFS in their mapping's  in page_cache_ra_unbounded()
232 	lockdep_assert_held(&mapping->invalidate_lock);  in page_cache_ra_unbounded()
234 	trace_page_cache_ra_unbounded(mapping->host, index, nr_to_read,  in page_cache_ra_unbounded()
236 	index = mapping_align_index(mapping, index);  in page_cache_ra_unbounded()
259 		struct folio *folio = xa_load(&mapping->i_pages, index + i);  in page_cache_ra_unbounded()
278 					mapping_min_folio_order(mapping));  in page_cache_ra_unbounded()
282 		ret = filemap_add_folio(mapping, folio, index + i, gfp_mask);  in page_cache_ra_unbounded()
318 	struct address_space *mapping = ractl->mapping;  in do_page_cache_ra()  local
320 	loff_t isize = i_size_read(mapping->host);  in do_page_cache_ra()
333 	filemap_invalidate_lock_shared(mapping);  in do_page_cache_ra()
335 	filemap_invalidate_unlock_shared(mapping);  in do_page_cache_ra()
345 	struct address_space *mapping = ractl->mapping;  in force_page_cache_ra()  local
347 	struct backing_dev_info *bdi = inode_to_bdi(mapping->host);  in force_page_cache_ra()
350 	if (unlikely(!mapping->a_ops->read_folio && !mapping->a_ops->readahead))  in force_page_cache_ra()
456 	err = filemap_add_folio(ractl->mapping, folio, index, gfp);  in ra_alloc_folio()
470 	struct address_space *mapping = ractl->mapping;  in page_cache_ra_order()  local
473 	unsigned int min_order = mapping_min_folio_order(mapping);  in page_cache_ra_order()
474 	pgoff_t limit = (i_size_read(mapping->host) - 1) >> PAGE_SHIFT;  in page_cache_ra_order()
478 	gfp_t gfp = readahead_gfp_mask(mapping);  in page_cache_ra_order()
481 	trace_page_cache_ra_order(mapping->host, start, ra);  in page_cache_ra_order()
482 	if (!mapping_large_folio_support(mapping)) {  in page_cache_ra_order()
489 	new_order = min(mapping_max_folio_order(mapping), new_order);  in page_cache_ra_order()
497 	filemap_invalidate_lock_shared(mapping);  in page_cache_ra_order()
503 	ractl->_index = mapping_align_index(mapping, index);  in page_cache_ra_order()
522 	filemap_invalidate_unlock_shared(mapping);  in page_cache_ra_order()
545 	struct backing_dev_info *bdi = inode_to_bdi(ractl->mapping->host);  in ractl_max_pages()
566 	trace_page_cache_sync_ra(ractl->mapping->host, index, ra, req_count);  in page_cache_sync_ra()
606 	miss = page_cache_prev_miss(ractl->mapping, index - 1, max_pages);  in page_cache_sync_ra()
651 	trace_page_cache_async_ra(ractl->mapping->host, index, ra, req_count);  in page_cache_async_ra()
681 	start = page_cache_next_miss(ractl->mapping, index + 1, max_pages);  in page_cache_async_ra()
769 	struct address_space *mapping = ractl->mapping;  in readahead_expand()  local
772 	gfp_t gfp_mask = readahead_gfp_mask(mapping);  in readahead_expand()
773 	unsigned long min_nrpages = mapping_min_folio_nrpages(mapping);  in readahead_expand()
774 	unsigned int min_order = mapping_min_folio_order(mapping);  in readahead_expand()
786 		struct folio *folio = xa_load(&mapping->i_pages, index);  in readahead_expand()
795 		index = mapping_align_index(mapping, index);  in readahead_expand()
796 		if (filemap_add_folio(mapping, folio, index, gfp_mask) < 0) {  in readahead_expand()
815 		struct folio *folio = xa_load(&mapping->i_pages, index);  in readahead_expand()
824 		index = mapping_align_index(mapping, index);  in readahead_expand()
825 		if (filemap_add_folio(mapping, folio, index, gfp_mask) < 0) {  in readahead_expand()