147 	const unsigned blocks_per_page = PAGE_CACHE_SIZE >> blkbits;  in do_mpage_readpage()  local
154 	unsigned first_hole = blocks_per_page;  in do_mpage_readpage()
165 	last_block = block_in_file + nr_pages * blocks_per_page;  in do_mpage_readpage()
185 			if (page_block == blocks_per_page)  in do_mpage_readpage()
199 	while (page_block < blocks_per_page) {  in do_mpage_readpage()
212 			if (first_hole == blocks_per_page)  in do_mpage_readpage()
230 		if (first_hole != blocks_per_page)  in do_mpage_readpage()
241 			} else if (page_block == blocks_per_page)  in do_mpage_readpage()
250 	if (first_hole != blocks_per_page) {  in do_mpage_readpage()
261 	if (fully_mapped && blocks_per_page == 1 && !PageUptodate(page) &&  in do_mpage_readpage()
275 		if (first_hole == blocks_per_page) {  in do_mpage_readpage()
295 	    (first_hole != blocks_per_page))  in do_mpage_readpage()
298 		*last_block_in_bio = blocks[blocks_per_page - 1];  in do_mpage_readpage()
474 	const unsigned blocks_per_page = PAGE_CACHE_SIZE >> blkbits;  in __mpage_writepage()  local
479 	unsigned first_unmapped = blocks_per_page;  in __mpage_writepage()
505 				if (first_unmapped == blocks_per_page)  in __mpage_writepage()
510 			if (first_unmapped != blocks_per_page)  in __mpage_writepage()
547 	for (page_block = 0; page_block < blocks_per_page; ) {  in __mpage_writepage()
601 		if (first_unmapped == blocks_per_page) {  in __mpage_writepage()
633 	if (boundary || (first_unmapped != blocks_per_page)) {  in __mpage_writepage()
640 		mpd->last_block_in_bio = blocks[blocks_per_page - 1];  in __mpage_writepage()