Gitweb:     http://git.kernel.org/linus/90a6501f94aedd7fb40f5556334843194fb598be
Commit:     90a6501f94aedd7fb40f5556334843194fb598be
Parent:     e2f4699ac15fe36de1288505bc6e6e5a8603ab1b
Author:     Paul E. McKenney <paulmck@linux.vnet.ibm.com>
AuthorDate: Sun Feb 28 08:32:18 2010 -0800
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Mon Mar 1 09:29:58 2010 +0100

    sched, rcu: Fix rcu_dereference() for RCU-lockdep
    
    Make rcu_dereference() of runqueue data structures be
    rcu_dereference_sched().
    
    Located-by: Ingo Molnar <mingo@elte.hu>
    Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
    Cc: laijs@cn.fujitsu.com
    Cc: dipankar@in.ibm.com
    Cc: mathieu.desnoyers@polymtl.ca
    Cc: josh@joshtriplett.org
    Cc: dvhltc@us.ibm.com
    Cc: niv@us.ibm.com
    Cc: peterz@infradead.org
    Cc: rostedt@goodmis.org
    Cc: Valdis.Kletnieks@vt.edu
    Cc: dhowells@redhat.com
    LKML-Reference: <20100228163218.GD6846@linux.vnet.ibm.com>
    Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 kernel/sched_fair.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 3e1fd96..5a5ea2c 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -3476,7 +3476,7 @@ static void run_rebalance_domains(struct softirq_action *h)
 
 static inline int on_null_domain(int cpu)
 {
-	return !rcu_dereference(cpu_rq(cpu)->sd);
+	return !rcu_dereference_sched(cpu_rq(cpu)->sd);
 }
 
 /*
--
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