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sched, rcu: Fix rcu_dereference() for RCU-lockdep

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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>
This commit is contained in:
Paul E. McKenney 2010-02-28 08:32:18 -08:00 committed by Ingo Molnar
parent e2f4699ac1
commit 90a6501f94
1 changed files with 1 additions and 1 deletions
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2
kernel/sched_fair.c
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@ -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);
}
/*