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@@ -1136,16 +1136,6 @@ static task_t *copy_process(unsigned long clone_flags,
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!cpu_online(task_cpu(p))))
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set_task_cpu(p, smp_processor_id());
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- /*
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- * Check for pending SIGKILL! The new thread should not be allowed
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- * to slip out of an OOM kill. (or normal SIGKILL.)
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- */
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- if (sigismember(¤t->pending.signal, SIGKILL)) {
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- write_unlock_irq(&tasklist_lock);
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- retval = -EINTR;
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- goto bad_fork_cleanup_namespace;
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- }
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-
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/* CLONE_PARENT re-uses the old parent */
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if (clone_flags & (CLONE_PARENT|CLONE_THREAD))
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p->real_parent = current->real_parent;
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@@ -1154,6 +1144,23 @@ static task_t *copy_process(unsigned long clone_flags,
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p->parent = p->real_parent;
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spin_lock(¤t->sighand->siglock);
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+
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+ /*
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+ * Process group and session signals need to be delivered to just the
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+ * parent before the fork or both the parent and the child after the
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+ * fork. Restart if a signal comes in before we add the new process to
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+ * it's process group.
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+ * A fatal signal pending means that current will exit, so the new
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+ * thread can't slip out of an OOM kill (or normal SIGKILL).
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+ */
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+ recalc_sigpending();
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+ if (signal_pending(current)) {
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+ spin_unlock(¤t->sighand->siglock);
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+ write_unlock_irq(&tasklist_lock);
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+ retval = -ERESTARTNOINTR;
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+ goto bad_fork_cleanup_namespace;
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+ }
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+
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if (clone_flags & CLONE_THREAD) {
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/*
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* Important: if an exit-all has been started then
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@@ -1170,16 +1177,6 @@ static task_t *copy_process(unsigned long clone_flags,
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p->group_leader = current->group_leader;
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list_add_tail_rcu(&p->thread_group, &p->group_leader->thread_group);
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- if (current->signal->group_stop_count > 0) {
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- /*
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- * There is an all-stop in progress for the group.
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- * We ourselves will stop as soon as we check signals.
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- * Make the new thread part of that group stop too.
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- */
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- current->signal->group_stop_count++;
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- set_tsk_thread_flag(p, TIF_SIGPENDING);
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- }
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-
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if (!cputime_eq(current->signal->it_virt_expires,
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cputime_zero) ||
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!cputime_eq(current->signal->it_prof_expires,
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