1807 	unsigned int block_start, block_end;  in page_zero_new_buffers()  local
1815 	block_start = 0;  in page_zero_new_buffers()
1817 		block_end = block_start + bh->b_size;  in page_zero_new_buffers()
1820 			if (block_end > from && block_start < to) {  in page_zero_new_buffers()
1824 					start = max(from, block_start);  in page_zero_new_buffers()
1836 		block_start = block_end;  in page_zero_new_buffers()
1848 	unsigned block_start, block_end;  in __block_write_begin()  local
1865 	for(bh = head, block_start = 0; bh != head || !block_start;  in __block_write_begin()
1866 	    block++, block_start=block_end, bh = bh->b_this_page) {  in __block_write_begin()
1867 		block_end = block_start + blocksize;  in __block_write_begin()
1868 		if (block_end <= from || block_start >= to) {  in __block_write_begin()
1891 				if (block_end > to || block_start < from)  in __block_write_begin()
1894 						block_start, from);  in __block_write_begin()
1905 		     (block_start < from || block_end > to)) {  in __block_write_begin()
1927 	unsigned block_start, block_end;  in __block_commit_write()  local
1935 	block_start = 0;  in __block_commit_write()
1937 		block_end = block_start + blocksize;  in __block_commit_write()
1938 		if (block_end <= from || block_start >= to) {  in __block_commit_write()
1947 		block_start = block_end;  in __block_commit_write()
2077 	unsigned block_start, block_end, blocksize;  in block_is_partially_uptodate()  local
2093 	block_start = 0;  in block_is_partially_uptodate()
2095 		block_end = block_start + blocksize;  in block_is_partially_uptodate()
2096 		if (block_end > from && block_start < to) {  in block_is_partially_uptodate()
2104 		block_start = block_end;  in block_is_partially_uptodate()
2468 	unsigned block_start, block_end;  in nobh_write_begin()  local
2516 	for (block_start = 0, block_in_page = 0, bh = head;  in nobh_write_begin()
2517 		  block_start < PAGE_CACHE_SIZE;  in nobh_write_begin()
2518 		  block_in_page++, block_start += blocksize, bh = bh->b_this_page) {  in nobh_write_begin()
2521 		block_end = block_start + blocksize;  in nobh_write_begin()
2524 		if (block_start >= to)  in nobh_write_begin()
2539 			zero_user_segments(page, block_start, from,  in nobh_write_begin()
2545 		if (block_start < from || block_end > to) {  in nobh_write_begin()