hammer_signal_check
int hammer_signal_check(hammer_mount_t hmp);
error = hammer_signal_check(trans->hmp);
error = hammer_signal_check(trans->hmp);
if ((error = hammer_signal_check(trans->hmp)) != 0)
if ((error = hammer_signal_check(trans->hmp)) != 0)
if ((error = hammer_signal_check(trans->hmp)) != 0)
if (bigread && (error = hammer_signal_check(ip->hmp)) != 0)
if (bigwrite && (error = hammer_signal_check(hmp)) != 0)