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rcu: Remove unused rcu_state.boost

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Signed-off-by: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Neeraj Upadhyay 2021-12-13 12:32:09 +05:30 committed by Paul E. McKenney
parent 02e3024175
commit eae9f147a4
2 changed files with 2 additions and 5 deletions
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5
kernel/rcu/tree.h
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@ -304,9 +304,8 @@ struct rcu_state {
/* The following fields are guarded by the root rcu_node's lock. */
u8 boost ____cacheline_internodealigned_in_smp;
/* Subject to priority boost. */
unsigned long gp_seq; /* Grace-period sequence #. */
unsigned long gp_seq ____cacheline_internodealigned_in_smp;
/* Grace-period sequence #. */
unsigned long gp_max; /* Maximum GP duration in */
/* jiffies. */
struct task_struct *gp_kthread; /* Task for grace periods. */

2
kernel/rcu/tree_plugin.h
View file

@ -1175,8 +1175,6 @@ static void rcu_spawn_one_boost_kthread(struct rcu_node *rnp)
if (rnp->boost_kthread_task || !rcu_scheduler_fully_active)
return;
rcu_state.boost = 1;
t = kthread_create(rcu_boost_kthread, (void *)rnp,
"rcub/%d", rnp_index);
if (WARN_ON_ONCE(IS_ERR(t)))