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[15/25] rcu-tasks: Remove grace-period fast-path rcu-tasks helper

Message ID 20220831181210.2695080-15-paulmck@kernel.org (mailing list archive)
State New, archived
Headers show
Series Polled grace-period updates for v6.1 | expand

Commit Message

Paul E. McKenney Aug. 31, 2022, 6:12 p.m. UTC 
Now that the 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 Tasks and RCU Tasks Trace grace periods.  This commit
therefore removes the conditional cond_resched_tasks_rcu_qs() invocation.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
 kernel/rcu/tree.c | 2 --
 1 file changed, 2 deletions(-)
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Patch

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 03b089184b37e..0ff7d5eaa3761 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3492,8 +3492,6 @@  void synchronize_rcu(void)
 		// which allows reuse of ->gp_seq_polled_snap.
 		rcu_poll_gp_seq_start_unlocked(&rcu_state.gp_seq_polled_snap);
 		rcu_poll_gp_seq_end_unlocked(&rcu_state.gp_seq_polled_snap);
-		if (rcu_init_invoked())
-			cond_resched_tasks_rcu_qs();
 		return;  // Context allows vacuous grace periods.
 	}
 	if (rcu_gp_is_expedited())