Function msg_prison_cleanup

freebsd/kern/sysv_msg.c:1655–1670

}

static void
msg_prison_cleanup(struct prison *pr)
{
	struct msqid_kernel *msqkptr;
	int i;

	/* Remove any msqs that belong to this jail. */
	mtx_lock(&msq_mtx);
	for (i = 0; i < msginfo.msgmni; i++) {
		msqkptr = &msqids[i];
		if (msqkptr->u.msg_qbytes != 0 &&
		    msqkptr->cred != NULL && msqkptr->cred->cr_prison == pr)
			msq_remove(msqkptr);
	}
	mtx_unlock(&msq_mtx);
}

SYSCTL_JAIL_PARAM_SYS_NODE(sysvmsg, CTLFLAG_RW, "SYSV message queues");