1 files changed, 2 insertions, 6 deletions

diff --git a/kernel/signal.c b/kernel/signal.c
index ef8156a6aad5..ad63109e413c 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -378,7 +378,7 @@ int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info)
         /* We only dequeue private signals from ourselves, we don't let
          * signalfd steal them
          */
-        if (tsk == current)
+        if (likely(tsk == current))
                 signr = __dequeue_signal(&tsk->pending, mask, info);
         if (!signr) {
                 signr = __dequeue_signal(&tsk->signal->shared_pending,
@@ -425,7 +425,7 @@ int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info)
                 if (!(tsk->signal->flags & SIGNAL_GROUP_EXIT))
                         tsk->signal->flags |= SIGNAL_STOP_DEQUEUED;
         }
-        if ( signr &&
+        if (signr && likely(tsk == current) &&
              ((info->si_code & __SI_MASK) == __SI_TIMER) &&
              info->si_sys_private){
                 /*
@@ -1561,10 +1561,6 @@ static inline int may_ptrace_stop(void)
                     (current->ptrace & PT_ATTACHED)))
                 return 0;
 
-        if (unlikely(current->signal == current->parent->signal) &&
-            unlikely(current->signal->flags & SIGNAL_GROUP_EXIT))
-                return 0;
-
         /*
          * Are we in the middle of do_coredump?
          * If so and our tracer is also part of the coredump stopping