sched: Remove rcu_read_lock() from wake_affine()
wake_affine() is only called from one path: select_task_rq_fair(), which already has the RCU read lock held. Signed-off-by: Nikunj A. Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/20110607101251.777.34547.stgit@IBM-009124035060.in.ibm.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -1481,7 +1481,6 @@ static int wake_affine(struct sched_domain *sd, struct task_struct *p, int sync)
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* effect of the currently running task from the load
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* of the current CPU:
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*/
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rcu_read_lock();
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if (sync) {
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tg = task_group(current);
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weight = current->se.load.weight;
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@ -1517,7 +1516,6 @@ static int wake_affine(struct sched_domain *sd, struct task_struct *p, int sync)
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balanced = this_eff_load <= prev_eff_load;
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} else
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balanced = true;
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rcu_read_unlock();
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/*
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* If the currently running task will sleep within
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