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UPSTREAM: rcu/rcuscale: Use call_rcu_hurry() for async reader test

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rcuscale uses call_rcu() to queue async readers. With recent changes to
save power, the test will have fewer async readers in flight. Use the
call_rcu_hurry() API instead to revert to the old behavior.

[ paulmck: Apply s/call_rcu_flush/call_rcu_hurry/ feedback from Tejun Heo. ]

Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
(cherry picked from commit 723df859d8bba948ff2eb08eba32ab433acf7c9c)

Bug: 258241771
Signed-off-by: Joel Fernandes <joelaf@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/4909034
Reviewed-by: Sean Paul <sean@poorly.run>
Reviewed-by: Vineeth Pillai <vineethrp@google.com>
Signed-off-by: Qais Yousef <qyousef@google.com>
Change-Id: I680dacb44e81e210e2e4455f28e50b9b516222a8
This commit is contained in:
Joel Fernandes (Google) 2022-10-16 16:23:00 +00:00 committed by Todd Kjos
parent 9b625f4978
commit 83f8ba569f
1 changed files with 1 additions and 1 deletions
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2
kernel/rcu/rcuscale.c
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@ -175,7 +175,7 @@ static struct rcu_scale_ops rcu_ops = {
.get_gp_seq = rcu_get_gp_seq,
.gp_diff = rcu_seq_diff,
.exp_completed = rcu_exp_batches_completed,
.async = call_rcu,
.async = call_rcu_hurry,
.gp_barrier = rcu_barrier,
.sync = synchronize_rcu,
.exp_sync = synchronize_rcu_expedited,