diff options
| author |   Li Zefan <lizefan@huawei.com> | 2013-03-29 14:44:28 +0800 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2013-04-10 13:54:22 +0200 |
| commit | a2b0ae25fc8bfeeb4022b8e847ab811b3c8368d1 (patch) | |
| tree | fde01115c40d05a8fe1fe57a4fa4c8477e8a0528 /kernel/sched/cpuacct.c | |
| parent | sched/cpuacct: Initialize cpuacct subsystem earlier (diff) | |
| download | linux-dev-a2b0ae25fc8bfeeb4022b8e847ab811b3c8368d1.tar.xz linux-dev-a2b0ae25fc8bfeeb4022b8e847ab811b3c8368d1.zip | |
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 '')
| -rw-r--r-- | kernel/sched/cpuacct.c | 6 |
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) { |