From 0945e1a305ef6128c0405f1c5c8b5368d8756224 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@tv-sign.ru>
Date: Tue, 11 Apr 2006 22:18:58 +0400
Subject: [PATCH] RCU signal handling

made this BUG_ON() unsafe. This code runs under ->siglock,
while switch_exec_pids() takes tasklist_lock.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 kernel/signal.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/kernel/signal.c b/kernel/signal.c
index ea154104a00b..bc8f80b3fdb0 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -975,7 +975,6 @@ __group_complete_signal(int sig, struct task_struct *p)
 		if (t == NULL)
 			/* restart balancing at this thread */
 			t = p->signal->curr_target = p;
-		BUG_ON(t->tgid != p->tgid);
 
 		while (!wants_signal(sig, t)) {
 			t = next_thread(t);
-- 
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