160 	const unsigned blkbits = inode->i_blkbits;  in do_mpage_readpage()  local
161 	const unsigned blocks_per_page = PAGE_SIZE >> blkbits;  in do_mpage_readpage()
162 	const unsigned blocksize = 1 << blkbits;  in do_mpage_readpage()
189 	block_in_file = (sector_t)page->index << (PAGE_SHIFT - blkbits);  in do_mpage_readpage()
191 	last_block_in_file = (i_size_read(inode) + blocksize - 1) >> blkbits;  in do_mpage_readpage()
199 	nblocks = map_bh->b_size >> blkbits;  in do_mpage_readpage()
230 			map_bh->b_size = (last_block-block_in_file) << blkbits;  in do_mpage_readpage()
262 		nblocks = map_bh->b_size >> blkbits;  in do_mpage_readpage()
277 		zero_user_segment(page, first_hole << blkbits, PAGE_SIZE);  in do_mpage_readpage()
302 			if (!bdev_read_page(bdev, blocks[0] << (blkbits - 9),  in do_mpage_readpage()
306 		args->bio = mpage_alloc(bdev, blocks[0] << (blkbits - 9),  in do_mpage_readpage()
314 	length = first_hole << blkbits;  in do_mpage_readpage()
321 	nblocks = map_bh->b_size >> blkbits;  in do_mpage_readpage()
487 	const unsigned blkbits = inode->i_blkbits;  in __mpage_writepage()  local
489 	const unsigned blocks_per_page = PAGE_SIZE >> blkbits;  in __mpage_writepage()
559 	block_in_file = (sector_t)page->index << (PAGE_SHIFT - blkbits);  in __mpage_writepage()
560 	last_block = (i_size - 1) >> blkbits;  in __mpage_writepage()
565 		map_bh.b_size = 1 << blkbits;  in __mpage_writepage()
616 			if (!bdev_write_page(bdev, blocks[0] << (blkbits - 9),  in __mpage_writepage()
620 		bio = mpage_alloc(bdev, blocks[0] << (blkbits - 9),  in __mpage_writepage()
635 	length = first_unmapped << blkbits;  in __mpage_writepage()
650 					boundary_block, 1 << blkbits);  in __mpage_writepage()