From: Paul E. McKenney Date: Sun, 28 Feb 2010 16:32:18 +0000 (-0800) Subject: sched, rcu: Fix rcu_dereference() for RCU-lockdep X-Git-Tag: upstream/snapshot3+hdmi~15075^2~12 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=90a6501f94aedd7fb40f5556334843194fb598be;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git sched, rcu: Fix rcu_dereference() for RCU-lockdep Make rcu_dereference() of runqueue data structures be rcu_dereference_sched(). Located-by: Ingo Molnar Signed-off-by: Paul E. McKenney 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 --- 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); } /*