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Date: Wed, 11 Feb 2009 22:12:28 +0100
From: Oleg Nesterov <oleg@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
       "Metzger, Markus T" <markus.t.metzger@intel.com>,
       Roland McGrath <roland@redhat.com>, linux-kernel@vger.kernel.org
Subject: [PATCH 5/4] tracehook_notify_death: use task_detached() helper
Message-ID: <20090211211228.GA16867@redhat.com>
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Now that task_detached() is exported, change tracehook_notify_death()
to use this helper, nobody else checks ->exit_signal == -1 by hand.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>

--- 6.29-rc3/include/linux/tracehook.h~5_NOTIFY_USE_HELPER	2008-10-10 00:13:53.000000000 +0200
+++ 6.29-rc3/include/linux/tracehook.h	2009-02-11 21:54:57.000000000 +0100
@@ -507,7 +507,7 @@ static inline int tracehook_notify_jctl(
 static inline int tracehook_notify_death(struct task_struct *task,
 					 void **death_cookie, int group_dead)
 {
-	if (task->exit_signal == -1)
+	if (task_detached(task))
 		return task->ptrace ? SIGCHLD : DEATH_REAP;
 
 	/*