From f4a3f0c4e673074bca666f414c9480dfb8d3258f Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 14 Jul 2006 00:24:27 -0700
Subject: [PATCH] --- yaml --- r: 32652 b: refs/heads/master c:
 3a5f5e488ceee9e08df3dff3f01b12fafc9e7e68 h: refs/heads/master v: v3

---
 [refs]               | 2 +-
 trunk/kernel/sched.c | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index baac30895d49..837290825c5f 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2e8f7a3128bb8fac8351a994f1fc325717899308
+refs/heads/master: 3a5f5e488ceee9e08df3dff3f01b12fafc9e7e68
diff --git a/trunk/kernel/sched.c b/trunk/kernel/sched.c
index d714611f1691..e9a0b61f12ab 100644
--- a/trunk/kernel/sched.c
+++ b/trunk/kernel/sched.c
@@ -1788,7 +1788,15 @@ context_switch(struct rq *rq, struct task_struct *prev,
 		WARN_ON(rq->prev_mm);
 		rq->prev_mm = oldmm;
 	}
+	/*
+	 * Since the runqueue lock will be released by the next
+	 * task (which is an invalid locking op but in the case
+	 * of the scheduler it's an obvious special-case), so we
+	 * do an early lockdep release here:
+	 */
+#ifndef __ARCH_WANT_UNLOCKED_CTXSW
 	spin_release(&rq->lock.dep_map, 1, _THIS_IP_);
+#endif
 
 	/* Here we just switch the register state and the stack. */
 	switch_to(prev, next, prev);