1841 	unsigned int block_start, block_end;  in page_zero_new_buffers()  local
1849 	block_start = 0;  in page_zero_new_buffers()
1851 		block_end = block_start + bh->b_size;  in page_zero_new_buffers()
1854 			if (block_end > from && block_start < to) {  in page_zero_new_buffers()
1858 					start = max(from, block_start);  in page_zero_new_buffers()
1870 		block_start = block_end;  in page_zero_new_buffers()
1937 	unsigned block_start, block_end;  in __block_write_begin_int()  local
1954 	for(bh = head, block_start = 0; bh != head || !block_start;  in __block_write_begin_int()
1955 	    block++, block_start=block_end, bh = bh->b_this_page) {  in __block_write_begin_int()
1956 		block_end = block_start + blocksize;  in __block_write_begin_int()
1957 		if (block_end <= from || block_start >= to) {  in __block_write_begin_int()
1984 				if (block_end > to || block_start < from)  in __block_write_begin_int()
1987 						block_start, from);  in __block_write_begin_int()
1998 		     (block_start < from || block_end > to)) {  in __block_write_begin_int()
2026 	unsigned block_start, block_end;  in __block_commit_write()  local
2034 	block_start = 0;  in __block_commit_write()
2036 		block_end = block_start + blocksize;  in __block_commit_write()
2037 		if (block_end <= from || block_start >= to) {  in __block_commit_write()
2046 		block_start = block_end;  in __block_commit_write()
2175 	unsigned block_start, block_end, blocksize;  in block_is_partially_uptodate()  local
2191 	block_start = 0;  in block_is_partially_uptodate()
2193 		block_end = block_start + blocksize;  in block_is_partially_uptodate()
2194 		if (block_end > from && block_start < to) {  in block_is_partially_uptodate()
2202 		block_start = block_end;  in block_is_partially_uptodate()
2548 	unsigned block_start, block_end;  in nobh_write_begin()  local
2596 	for (block_start = 0, block_in_page = 0, bh = head;  in nobh_write_begin()
2597 		  block_start < PAGE_SIZE;  in nobh_write_begin()
2598 		  block_in_page++, block_start += blocksize, bh = bh->b_this_page) {  in nobh_write_begin()
2601 		block_end = block_start + blocksize;  in nobh_write_begin()
2604 		if (block_start >= to)  in nobh_write_begin()
2619 			zero_user_segments(page, block_start, from,  in nobh_write_begin()
2625 		if (block_start < from || block_end > to) {  in nobh_write_begin()