F_GET_SEALS
seals = memfd_fcntl(memfd, F_GET_SEALS, 0);
case F_GET_SEALS:
case F_GET_SEALS:
if (arg->val == F_GET_SEALS ||
r = fcntl(fd, F_GET_SEALS);
r = fcntl(fd, F_GET_SEALS);
r = fcntl(fd, F_GET_SEALS);
r = fcntl(fd, F_GET_SEALS);