1840 	unsigned int block_start, block_end;  in page_zero_new_buffers()  local
1848 	block_start = 0;  in page_zero_new_buffers()
1850 		block_end = block_start + bh->b_size;  in page_zero_new_buffers()
1853 			if (block_end > from && block_start < to) {  in page_zero_new_buffers()
1857 					start = max(from, block_start);  in page_zero_new_buffers()
1869 		block_start = block_end;  in page_zero_new_buffers()
1936 	unsigned block_start, block_end;  in __block_write_begin_int()  local
1953 	for(bh = head, block_start = 0; bh != head || !block_start;  in __block_write_begin_int()
1954 	    block++, block_start=block_end, bh = bh->b_this_page) {  in __block_write_begin_int()
1955 		block_end = block_start + blocksize;  in __block_write_begin_int()
1956 		if (block_end <= from || block_start >= to) {  in __block_write_begin_int()
1983 				if (block_end > to || block_start < from)  in __block_write_begin_int()
1986 						block_start, from);  in __block_write_begin_int()
1997 		     (block_start < from || block_end > to)) {  in __block_write_begin_int()
2025 	unsigned block_start, block_end;  in __block_commit_write()  local
2033 	block_start = 0;  in __block_commit_write()
2035 		block_end = block_start + blocksize;  in __block_commit_write()
2036 		if (block_end <= from || block_start >= to) {  in __block_commit_write()
2045 		block_start = block_end;  in __block_commit_write()
2174 	unsigned block_start, block_end, blocksize;  in block_is_partially_uptodate()  local
2190 	block_start = 0;  in block_is_partially_uptodate()
2192 		block_end = block_start + blocksize;  in block_is_partially_uptodate()
2193 		if (block_end > from && block_start < to) {  in block_is_partially_uptodate()
2201 		block_start = block_end;  in block_is_partially_uptodate()
2547 	unsigned block_start, block_end;  in nobh_write_begin()  local
2595 	for (block_start = 0, block_in_page = 0, bh = head;  in nobh_write_begin()
2596 		  block_start < PAGE_SIZE;  in nobh_write_begin()
2597 		  block_in_page++, block_start += blocksize, bh = bh->b_this_page) {  in nobh_write_begin()
2600 		block_end = block_start + blocksize;  in nobh_write_begin()
2603 		if (block_start >= to)  in nobh_write_begin()
2618 			zero_user_segments(page, block_start, from,  in nobh_write_begin()
2624 		if (block_start < from || block_end > to) {  in nobh_write_begin()