f2fs: fix to update age extent in f2fs_do_zero_range()

We should update age extent in f2fs_do_zero_range() like we
did in f2fs_truncate_data_blocks_range().

Fixes: 71644dff ("f2fs: add block_age-based extent cache")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/file.c

@@ -1494,6 +1494,7 @@ static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
 	}
 
 	f2fs_update_read_extent_cache_range(dn, start, 0, index - start);
+	f2fs_update_age_extent_cache_range(dn, start, index - start);
 
 	return ret;
 }