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Subject[PATCH rcu 03/10] rcu: Remove unused rcu_state.boost
Date
From: Neeraj Upadhyay <quic_neeraju@quicinc.com>

Signed-off-by: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
kernel/rcu/tree.h | 5 ++---
kernel/rcu/tree_plugin.h | 2 --
2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index 24dd4b0d805f1..e9990945483f1 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -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. */
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index c5b45c2f68a15..109429e70a642 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -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)))
--
2.31.1.189.g2e36527f23
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