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Joel Fernandes (Google) committed 75a8f722452
rcu: Remove unused rcu_state externs The rcu_bh_state and rcu_sched_state variables were removed during the RCU flavor consolidations, but external declarations remain in tree.h. This commit therefore removes these obsolete declarations. Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> Cc: <kernel-team@android.com> Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>