lkml.org 
[lkml]   [2013]   [Apr]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[tip:sched/core] sched/cpuacct: No need to check subsys active state
Commit-ID:  a2b0ae25fc8bfeeb4022b8e847ab811b3c8368d1
Gitweb: http://git.kernel.org/tip/a2b0ae25fc8bfeeb4022b8e847ab811b3c8368d1
Author: Li Zefan <lizefan@huawei.com>
AuthorDate: Fri, 29 Mar 2013 14:44:28 +0800
Committer: Ingo Molnar <mingo@kernel.org>
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 <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>
---
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) {

\
 
 \ /
  Last update: 2013-04-10 17:02    [W:0.106 / U:0.236 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site