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authorLi Zefan <lizefan@huawei.com>2013-03-29 14:44:28 +0800
committerIngo Molnar <mingo@kernel.org>2013-04-10 13:54:22 +0200
commita2b0ae25fc8bfeeb4022b8e847ab811b3c8368d1 (patch)
treefde01115c40d05a8fe1fe57a4fa4c8477e8a0528 /kernel/sched/cpuacct.c
parent621e2de02403a6f776852c564b79c38bf3cc9032 (diff)
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>
Diffstat (limited to 'kernel/sched/cpuacct.c')
-rw-r--r--kernel/sched/cpuacct.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/kernel/sched/cpuacct.c b/kernel/sched/cpuacct.c
index 75e46d291f9c..ef57ab658722 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) {