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Commit 1b04624f authored by Roland McGrath's avatar Roland McGrath
Browse files

tracehook: fix SA_NOCLDWAIT 



I outwitted myself again in commit 2b2a1ff6,
and broke the SA_NOCLDWAIT behavior so it leaks zombies.  This fixes it.

Reported-by: default avatarAndi Kleen <andi@firstfloor.org>
Signed-off-by: default avatarRoland McGrath <roland@redhat.com>
parent 1fca2542

kernel/signal.c

+3 −2
Original line number Diff line number Diff line
@@ -1338,6 +1338,7 @@ int do_notify_parent(struct task_struct *tsk, int sig) 
	struct siginfo info;

	unsigned long flags;

	struct sighand_struct *psig;

	int ret = sig;



	BUG_ON(sig == -1);
@@ -1402,7 +1403,7 @@ int do_notify_parent(struct task_struct *tsk, int sig) 
		 * is implementation-defined: we do (if you don't want

		 * it, just use SIG_IGN instead).

		 */

		tsk->exit_signal = -1;

		ret = tsk->exit_signal = -1;

		if (psig->action[SIGCHLD-1].sa.sa_handler == SIG_IGN)

			sig = -1;

	}
@@ -1411,7 +1412,7 @@ int do_notify_parent(struct task_struct *tsk, int sig) 
	__wake_up_parent(tsk, tsk->parent);

	spin_unlock_irqrestore(&psig->siglock, flags);



	return sig;

	return ret;

}



static void do_notify_parent_cldstop(struct task_struct *tsk, int why)