From 80b67a6203050d32c17af3a387f2bfa4deb04c38 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 22 Jul 2011 08:07:08 +0200
Subject: [PATCH 153/518] signal: Make __lock_task_sighand() RT aware

local_irq_save() + spin_lock(&sighand->siglock) does not work on
-RT. Use the nort variants.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 kernel/signal.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/signal.c b/kernel/signal.c
index 2ede6b225eb5c..ea34aabc1fbfb 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1357,12 +1357,12 @@ struct sighand_struct *__lock_task_sighand(struct task_struct *tsk,
 		 * Disable interrupts early to avoid deadlocks.
 		 * See rcu_read_unlock() comment header for details.
 		 */
-		local_irq_save(*flags);
+		local_irq_save_nort(*flags);
 		rcu_read_lock();
 		sighand = rcu_dereference(tsk->sighand);
 		if (unlikely(sighand == NULL)) {
 			rcu_read_unlock();
-			local_irq_restore(*flags);
+			local_irq_restore_nort(*flags);
 			break;
 		}
 		/*
@@ -1383,7 +1383,7 @@ struct sighand_struct *__lock_task_sighand(struct task_struct *tsk,
 		}
 		spin_unlock(&sighand->siglock);
 		rcu_read_unlock();
-		local_irq_restore(*flags);
+		local_irq_restore_nort(*flags);
 	}
 
 	return sighand;
-- 
2.41.0

