Commit-ID:  a2b0ae25fc8bfeeb4022b8e847ab811b3c8368d1
Gitweb:     http://git.kernel.org/tip/a2b0ae25fc8bfeeb4022b8e847ab811b3c8368d1
Author:     Li Zefan <[email protected]>
AuthorDate: Fri, 29 Mar 2013 14:44:28 +0800
Committer:  Ingo Molnar <[email protected]>
CommitDate: Wed, 10 Apr 2013 13:54:22 +0200

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 <[email protected]>
Cc: Tejun Heo <[email protected]>
Acked-by: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
---
 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) {
--
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