Merge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linvil...

[pandora-kernel.git] / kernel / ptrace.c

diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index d95a72c..4e0f0ec 100644 (file)
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -30,14 +30,13 @@
  */
 void __ptrace_link(task_t *child, task_t *new_parent)
 {
-       if (!list_empty(&child->ptrace_list))
-               BUG();
+       BUG_ON(!list_empty(&child->ptrace_list));
        if (child->parent == new_parent)
                return;
        list_add(&child->ptrace_list, &child->parent->ptrace_children);
-       REMOVE_LINKS(child);
+       remove_parent(child);
        child->parent = new_parent;
-       SET_LINKS(child);
+       add_parent(child);
 }
  
 /*
@@ -57,10 +56,6 @@ void ptrace_untrace(task_t *child)
                        signal_wake_up(child, 1);
                }
        }
-       if (child->signal->flags & SIGNAL_GROUP_EXIT) {
-               sigaddset(&child->pending.signal, SIGKILL);
-               signal_wake_up(child, 1);
-       }
        spin_unlock(&child->sighand->siglock);
 }
 
@@ -77,12 +72,13 @@ void __ptrace_unlink(task_t *child)
        child->ptrace = 0;
        if (!list_empty(&child->ptrace_list)) {
                list_del_init(&child->ptrace_list);
-               REMOVE_LINKS(child);
+               remove_parent(child);
                child->parent = child->real_parent;
-               SET_LINKS(child);
+               add_parent(child);
        }
 
-       ptrace_untrace(child);
+       if (child->state == TASK_TRACED)
+               ptrace_untrace(child);
 }
 
 /*