read_cache_folio
folio = read_cache_folio(mapping, page_idx, NULL, NULL);
folio = read_cache_folio(mapping, index, gfs2_read_folio, NULL);
folio = read_cache_folio(inode->i_mapping, start >> PAGE_SHIFT,
folio = read_cache_folio(&inode->i_data, 0, nfs_symlink_filler,
return read_cache_folio(mapping, index, NULL, file);
struct folio *read_cache_folio(struct address_space *, pgoff_t index,
EXPORT_SYMBOL(read_cache_folio);