1 files changed, 9 insertions, 6 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index 728d5be9548c..294189fc7ac8 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -537,6 +537,7 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p)
         spin_lock_init(&mm->page_table_lock);
         mm_init_aio(mm);
         mm_init_owner(mm, p);
+        clear_tlb_flush_pending(mm);
 
         if (likely(!mm_alloc_pgd(mm))) {
                 mm->def_flags = 0;
@@ -1086,8 +1087,10 @@ static void rt_mutex_init_task(struct task_struct *p)
 {
         raw_spin_lock_init(&p->pi_lock);
 #ifdef CONFIG_RT_MUTEXES
-        plist_head_init(&p->pi_waiters);
+        p->pi_waiters = RB_ROOT;
+        p->pi_waiters_leftmost = NULL;
         p->pi_blocked_on = NULL;
+        p->pi_top_task = NULL;
 #endif
 }
 
@@ -1171,7 +1174,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
          * do not allow it to share a thread group or signal handlers or
          * parent with the forking task.
          */
-        if (clone_flags & (CLONE_SIGHAND | CLONE_PARENT)) {
+        if (clone_flags & CLONE_SIGHAND) {
                 if ((clone_flags & (CLONE_NEWUSER | CLONE_NEWPID)) ||
                     (task_active_pid_ns(current) !=
                                 current->nsproxy->pid_ns_for_children))
@@ -1310,7 +1313,9 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 #endif
 
         /* Perform scheduler related setup. Assign this task to a CPU. */
-        sched_fork(clone_flags, p);
+        retval = sched_fork(clone_flags, p);
+        if (retval)
+                goto bad_fork_cleanup_policy;
 
         retval = perf_event_init_task(p);
         if (retval)
@@ -1402,13 +1407,11 @@ static struct task_struct *copy_process(unsigned long clone_flags,
                 p->tgid = p->pid;
         }
 
-        p->pdeath_signal = 0;
-        p->exit_state = 0;
-
         p->nr_dirtied = 0;
         p->nr_dirtied_pause = 128 >> (PAGE_SHIFT - 10);
         p->dirty_paused_when = 0;
 
+        p->pdeath_signal = 0;
         INIT_LIST_HEAD(&p->thread_group);
         p->task_works = NULL;