j                 466 kernel/fs.c      int i, j;
j                 480 kernel/fs.c        for (j = 0; j < NINDIRECT; j++) {
j                 481 kernel/fs.c          if (a[j])
j                 482 kernel/fs.c            bfree(ip->dev, a[j]);
j                 207 kernel/virtio_disk.c       for (int j = 0; j < i; j++)
j                 208 kernel/virtio_disk.c         free_desc(idx[j]);
j                1009 user/usertests.c       for (int j = 0; j < 200; j++) {
j                1189 user/usertests.c   int fd, pid, i, j, n, total, pi;
j                1234 user/usertests.c       for (j = 0; j < n; j++) {
j                1235 user/usertests.c         if (buf[j] != '0' + i) {