ptrace: wait_consider_task: s/same_thread_group/ptrace_reparented/
wait_consider_task() checks same_thread_group(parent, real_parent),
this is the open-coded ptrace_reparented().
__ptrace_detach() remains the only function which has to check this by
hand, although we could reorganize the code to delay __ptrace_unlink.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
diff --git a/kernel/exit.c b/kernel/exit.c
index 9fa9970..b8d3b47 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -1599,8 +1599,7 @@
* own children, it should create a separate process which
* takes the role of real parent.
*/
- if (likely(!ptrace) && p->ptrace &&
- same_thread_group(p->parent, p->real_parent))
+ if (likely(!ptrace) && p->ptrace && !ptrace_reparented(p))
return 0;
/*