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Paul E. McKenney authored
Avoid calling into the scheduler while holding core RCU locks. This allows rcu_read_unlock() to be called while holding the runqueue locks, but only as long as there was no chance of the RCU read-side critical section having been preempted. (Otherwise, if RCU priority boosting is enabled, rcu_read_unlock() might call into the scheduler in order to unboost itself, which might allows self-deadlock on the runqueue locks within the scheduler.) Signed-off-by:
Paul E. McKenney <paul.mckenney@linaro.org> Signed-off-by:
Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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