Commit-ID: 8b4d0f4858864af6a0753740f00353035bd058de
Gitweb: https://git.kernel.org/tip/8b4d0f4858864af6a0753740f00353035bd058de
Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxx>
AuthorDate: Fri, 30 Nov 2018 17:17:21 -0800
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxx>
CommitDate: Fri, 25 Jan 2019 15:29:55 -0800
rcu: Remove unused rcu_cpu_kthread_loops per-CPU variable
The rcu_cpu_kthread_loops variable used to provide debugfs information,
but is no longer used. This commit therefore removes it.
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxx>
---
kernel/rcu/tree.h | 1 -
kernel/rcu/tree_plugin.h | 2 --
2 files changed, 3 deletions(-)
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index 047f5e9350d1..e50b0a5a94bc 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -410,7 +410,6 @@ int rcu_dynticks_snap(struct rcu_data *rdp);
#ifdef CONFIG_RCU_BOOST
DECLARE_PER_CPU(int, rcu_cpu_kthread_cpu);
-DECLARE_PER_CPU(unsigned int, rcu_cpu_kthread_loops);
DECLARE_PER_CPU(char, rcu_cpu_has_work);
#endif /* #ifdef CONFIG_RCU_BOOST */
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 935dc594cf30..d1f32c63c789 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -40,7 +40,6 @@
/*
* Control variables for per-CPU and per-rcu_node kthreads.
*/
-DEFINE_PER_CPU(unsigned int, rcu_cpu_kthread_loops);
DEFINE_PER_CPU(char, rcu_cpu_has_work);
#else /* #ifdef CONFIG_RCU_BOOST */
@@ -1405,7 +1404,6 @@ static void rcu_cpu_kthread(unsigned int cpu)
trace_rcu_utilization(TPS("Start CPU kthread@rcu_wait"));
local_bh_disable();
*statusp = RCU_KTHREAD_RUNNING;
- this_cpu_inc(rcu_cpu_kthread_loops);
local_irq_disable();
work = *workp;
*workp = 0;
|