Commit 479bf98c authored Jun 24, 2011 by Oleg Nesterov

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>

parent bb3696da

kernel/exit.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -1599,8 +1599,7 @@ static int wait_consider_task(struct wait_opts *wo, int ptrace,
		* 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;

		/*