read_mapping_folio
folio = read_mapping_folio(mapping, n >> PAGE_SECTORS_SHIFT, NULL);
folio = read_mapping_folio(mapping, 0, NULL);
folio = read_mapping_folio(inode->i_mapping, 0, file);
ecryptfs_folio = read_mapping_folio(ecryptfs_inode->i_mapping,
folio = read_mapping_folio(buf->mapping, index, buf->file);
struct folio *folio = read_mapping_folio(mapping, n, NULL);
folio = read_mapping_folio(inode->i_mapping, pos >> PAGE_SHIFT,
folio = read_mapping_folio(inode->i_mapping, 0, NULL);
folio = read_mapping_folio(sb->s_bdev->bd_mapping, block, NULL);
folio = read_mapping_folio(sbi->sb->s_bdev->bd_mapping, index, NULL);
folio = read_mapping_folio(sbi->sb->s_bdev->bd_mapping, index, NULL);
folio = read_mapping_folio(mapping, page_index, NULL);
struct folio *folio = read_mapping_folio(dir->i_mapping, n, NULL);
folio = read_mapping_folio(mapping, 0, NULL);
struct folio *folio = read_mapping_folio(mapping, n, NULL);
folio = read_mapping_folio(mapping, lbo >> PAGE_SHIFT, NULL);
struct folio *folio = read_mapping_folio(dir->i_mapping, n, NULL);
struct folio *folio = read_mapping_folio(mapping, n, NULL);
struct folio *folio = read_mapping_folio(mapping, 0, NULL);
folio = read_mapping_folio(mapping, n, NULL);
return read_mapping_folio(file->f_mapping, pos >> PAGE_SHIFT, file);
folio = read_mapping_folio(inode->i_mapping, 0, NULL);
struct folio *folio = read_mapping_folio(mapping, n, NULL);
folio = read_mapping_folio(mapping, index, NULL);
folio = read_mapping_folio(inode->i_mapping, index, NULL);
folio = read_mapping_folio(mapping, 0, swap_file);