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Commit a2b0ae25 authored by Li Zefan's avatar Li Zefan Committed by Ingo Molnar
Browse files

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: default avatarLi Zefan <lizefan@huawei.com>
Cc: Tejun Heo <tj@kernel.org>
Acked-by: default avatarPeter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/5155384C.7000508@huawei.com


Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 621e2de0

kernel/sched/cpuacct.c

+0 −6
Original line number Diff line number Diff line
@@ -247,9 +247,6 @@ void cpuacct_charge(struct task_struct *tsk, u64 cputime) 
	struct cpuacct *ca;

	int cpu;



	if (unlikely(!cpuacct_subsys.active))

		return;



	cpu = task_cpu(tsk);



	rcu_read_lock();
@@ -278,9 +275,6 @@ void cpuacct_account_field(struct task_struct *p, int index, u64 val) 
	struct kernel_cpustat *kcpustat;

	struct cpuacct *ca;



	if (unlikely(!cpuacct_subsys.active))

		return;



	rcu_read_lock();

	ca = task_ca(p);

	while (ca != &root_cpuacct) {