sched/cpuacct: No need to check subsys active state
Now we're guaranteed when cpuacct_charge() and
cpuacct_account_field() are called, cpuacct has already been
properly initialized, so we no longer need those checks.
Signed-off-by: Li Zefan <lizefan@huawei.com>
Cc: Tejun Heo <tj@kernel.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/5155384C.7000508@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
diff --git a/kernel/sched/cpuacct.c b/kernel/sched/cpuacct.c
index 75e46d2..ef57ab6 100644
--- a/kernel/sched/cpuacct.c
+++ b/kernel/sched/cpuacct.c
@@ -247,9 +247,6 @@
struct cpuacct *ca;
int cpu;
- if (unlikely(!cpuacct_subsys.active))
- return;
-
cpu = task_cpu(tsk);
rcu_read_lock();
@@ -278,9 +275,6 @@
struct kernel_cpustat *kcpustat;
struct cpuacct *ca;
- if (unlikely(!cpuacct_subsys.active))
- return;
-
rcu_read_lock();
ca = task_ca(p);
while (ca != &root_cpuacct) {
