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rcu: Remove unused rcu_cpu_kthread_loops per-CPU variable

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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@linux.ibm.com>
This commit is contained in:
Paul E. McKenney 2018-11-30 17:17:21 -08:00
parent 6ffdde28b7
commit 8b4d0f4858
2 changed files with 0 additions and 3 deletions
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1
kernel/rcu/tree.h
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@ -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 */

2
kernel/rcu/tree_plugin.h
View File

@ -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;