mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-28 11:49:32 +00:00
rcu: Fix tracepoint tracking RCU CPU kthread utilization
In the call to trace_rcu_utilization() at the start of the loop in rcu_cpu_kthread(), "rcu_wait" is incorrect, plus this trace event needs to be hoisted above the loop to balance with either the "rcu_wait" or "rcu_yield", depending on how the loop exits. This commit therefore makes these changes. Signed-off-by: Lai Jiangshan <jiangshanlai@gmail.com> Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
parent
822175e729
commit
2488a5e695
1 changed files with 1 additions and 1 deletions
|
@ -2474,8 +2474,8 @@ static void rcu_cpu_kthread(unsigned int cpu)
|
|||
char work, *workp = this_cpu_ptr(&rcu_data.rcu_cpu_has_work);
|
||||
int spincnt;
|
||||
|
||||
trace_rcu_utilization(TPS("Start CPU kthread@rcu_run"));
|
||||
for (spincnt = 0; spincnt < 10; spincnt++) {
|
||||
trace_rcu_utilization(TPS("Start CPU kthread@rcu_wait"));
|
||||
local_bh_disable();
|
||||
*statusp = RCU_KTHREAD_RUNNING;
|
||||
local_irq_disable();
|
||||
|
|
Loading…
Reference in a new issue