- /* Always clear parent death signal on SID transitions. */
- current->pdeath_signal = 0;
-
- /* Check whether the new SID can inherit resource limits
- from the old SID. If not, reset all soft limits to
- the lower of the current task's hard limit and the init
- task's soft limit. Note that the setting of hard limits
- (even to lower them) can be controlled by the setrlimit
- check. The inclusion of the init task's soft limit into
- the computation is to avoid resetting soft limits higher
- than the default soft limit for cases where the default
- is lower than the hard limit, e.g. RLIMIT_CORE or
- RLIMIT_STACK.*/
- rc = avc_has_perm(tsec->osid, tsec->sid, SECCLASS_PROCESS,
- PROCESS__RLIMITINH, NULL);
- if (rc) {
- for (i = 0; i < RLIM_NLIMITS; i++) {
- rlim = current->signal->rlim + i;
- initrlim = init_task.signal->rlim+i;
- rlim->rlim_cur = min(rlim->rlim_max,initrlim->rlim_cur);
- }
- if (current->signal->rlim[RLIMIT_CPU].rlim_cur != RLIM_INFINITY) {
- /*
- * This will cause RLIMIT_CPU calculations
- * to be refigured.
- */
- current->it_prof_expires = jiffies_to_cputime(1);
- }
- }
-
- /* Wake up the parent if it is waiting so that it can
- recheck wait permission to the new task SID. */
+ /* Wake up the parent if it is waiting so that it can recheck
+ * wait permission to the new task SID. */
+ read_lock_irq(&tasklist_lock);
+ psig = current->parent->sighand;
+ spin_lock_irqsave(&psig->siglock, flags);