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rcu: Make the grace period workers unbound again

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After a dedicated grace-period workqueue was added to RCU in order to
benefit from rescuer threads, the relevant workers were moved to the new
workqueue away from system_power_efficient_wq. The old workqueue was
unbound, which is desirable for performance reasons. Making the workers
bound measurably regressed performance, so make them unbound again.

Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>
Signed-off-by: Zlatan Radovanovic <zlatan.radovanovic@fet.ba>
Signed-off-by: azrim <mirzaspc@gmail.com>
This commit is contained in:
Sultan Alsawaf 2022-04-19 23:32:22 -07:00 committed by azrim
parent f1786dc207
commit ed90e6b932
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1 changed files with 1 additions and 1 deletions
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kernel/rcu/tree.c
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@ -3577,7 +3577,7 @@ void __init rcu_init(void)
}
/* Create workqueue for expedited GPs and for Tree SRCU. */
rcu_gp_wq = alloc_workqueue("rcu_gp", WQ_MEM_RECLAIM, 0);
rcu_gp_wq = alloc_workqueue("rcu_gp", WQ_MEM_RECLAIM | WQ_UNBOUND, 0);
WARN_ON(!rcu_gp_wq);
rcu_par_gp_wq = alloc_workqueue("rcu_par_gp", WQ_MEM_RECLAIM, 0);
WARN_ON(!rcu_par_gp_wq);