From: Oleg Nesterov <oleg@tv-sign.ru>
Date: Thu, 16 Oct 2008 05:04:25 +0000 (-0700)
Subject: pid_ns: de_thread: kill the now unneeded ->child_reaper change
X-Git-Tag: firefly_0821_release~17452
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=07edbde508869be63c38c5f2504bd8e8279cc535;p=firefly-linux-kernel-4.4.55.git

pid_ns: de_thread: kill the now unneeded ->child_reaper change

de_thread() checks if the old leader was the ->child_reaper, this is not
possible any longer.  With the previous patch ->group_leader itself will
change ->child_reaper on exit.

Henceforth find_new_reaper() is the only function (apart from
initialization) which plays with ->child_reaper.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Acked-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/fs/exec.c b/fs/exec.c
index 4a790f2e224e..cfb5656b2cdc 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -825,8 +825,6 @@ static int de_thread(struct task_struct *tsk)
 			schedule();
 		}
 
-		if (unlikely(task_child_reaper(tsk) == leader))
-			task_active_pid_ns(tsk)->child_reaper = tsk;
 		/*
 		 * The only record we have of the real-time age of a
 		 * process, regardless of execs it's done, is start_time.