From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com,
akpm@linux-foundation.org, mathieu.desnoyers@polymtl.ca,
josh@joshtriplett.org, dvhltc@us.ibm.com, niv@us.ibm.com,
tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org,
Valdis.Kletnieks@vt.edu, dhowells@redhat.com
Subject: [PATCH tip/core/rcu] rcu: export rcu_scheduler_active
Date: Thu, 25 Feb 2010 19:02:30 -0800 [thread overview]
Message-ID: <20100226030230.GA7743@linux.vnet.ibm.com> (raw)
In-Reply-To: <20100225220624.GA7013@linux.vnet.ibm.com>
Kernel modules using rcu_read_lock_sched_held() must now have access
to rcu_scheduler_active, so it must be exported.
This should fix the fix for the boot-time RCU-lockdep splat.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
rcupdate.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index 7bfa004..f1125c1 100644
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -64,6 +64,7 @@ EXPORT_SYMBOL_GPL(rcu_sched_lock_map);
#endif
int rcu_scheduler_active __read_mostly;
+EXPORT_SYMBOL_GPL(rcu_scheduler_active);
/*
* This function is invoked towards the end of the scheduler's initialization
next prev parent reply other threads:[~2010-02-26 3:02 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-25 22:06 [PATCH tip/core/rcu 0/2] rcu: fixes for RCU lockdep Paul E. McKenney
2010-02-25 22:06 ` [PATCH tip/core/rcu 1/2] rcu: make lockdep_rcu_dereference() message less alarmist Paul E. McKenney
2010-02-26 9:29 ` [tip:core/rcu] rcu: Make " tip-bot for Paul E. McKenney
2010-02-25 22:06 ` [PATCH tip/core/rcu 2/2] rcu: make rcu_read_lock_sched_held() take boot time into account Paul E. McKenney
2010-02-26 9:29 ` [tip:core/rcu] rcu: Make " tip-bot for Paul E. McKenney
2010-02-26 3:02 ` Paul E. McKenney [this message]
2010-02-26 9:29 ` [tip:core/rcu] rcu: Export rcu_scheduler_active tip-bot for Paul E. McKenney
2010-02-26 11:50 ` [PATCH tip/core/rcu 0/2] rcu: fixes for RCU lockdep Ingo Molnar
2010-02-26 13:19 ` Ingo Molnar
2010-02-26 14:46 ` Ingo Molnar
2010-02-26 17:02 ` Paul E. McKenney
2010-02-26 17:42 ` Paul E. McKenney
2010-02-27 9:51 ` Ingo Molnar
2010-02-27 12:59 ` Ingo Molnar
2010-02-27 22:48 ` Paul E. McKenney
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