[PATCH v2 4/5] cpuacct: No need to check subsys active state

Li Zefan
2013-03-29T06:44:28Z

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>
---
kernel/sched/cpuacct.c | 6 ------
1 file changed, 6 deletions(-)

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 @@ 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) {
--
1.8.0.2