rcu: Remove expedited grace-period fast-path forward-progress helper

Now that the expedited grace-period fast path can only happen during
the pre-scheduler portion of early boot, this fast path can no longer
block run-time RCU Trace grace periods.  This commit therefore removes
the conditional cond_resched() invocation.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

diff --git a/kernel/rcu/tree_exp.h b/kernel/rcu/tree_exp.h
index 9c0ae834ef076af2e53e5274d81605cc9fa1299a..1a51f9301ebff7a3b192942cb9856e0762f3c88e 100644 (file)
--- a/kernel/rcu/tree_exp.h
+++ b/kernel/rcu/tree_exp.h
@@ -924,8 +924,6 @@ void synchronize_rcu_expedited(void)
                // them, which allows reuse of ->gp_seq_polled_exp_snap.
                rcu_poll_gp_seq_start_unlocked(&rcu_state.gp_seq_polled_exp_snap);
                rcu_poll_gp_seq_end_unlocked(&rcu_state.gp_seq_polled_exp_snap);
-               if (rcu_init_invoked())
-                       cond_resched();
                return;  // Context allows vacuous grace periods.
        }