rcu: Introduce rcutorture testing for rcu_barrier()
Although rcutorture does invoke rcu_barrier() and friends, it cannot really be called a torture test given that it invokes them only once at the end of the test. This commit therefore introduces heavy-duty rcutorture testing for rcu_barrier(), which may be carried out concurrently with normal rcutorture testing. 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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