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| author | Li Zefan <lizefan@huawei.com> | 2013-03-29 07:44:04 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-04-10 13:54:20 +0200 |
| commit | 14c6d3c8a47ced185b6375c4940b5b393f1a294e (patch) | |
| tree | 1e7bb1aa142f89ed37988d432bffec7b8bf502f4 /kernel/sched | |
| parent | sched/cpuacct: Allocate per_cpu cpuusage for root cpuacct statically (diff) | |
| download | linux-14c6d3c8a47ced185b6375c4940b5b393f1a294e.tar.xz linux-14c6d3c8a47ced185b6375c4940b5b393f1a294e.zip | |
sched/cpuacct: Initialize root cpuacct earlier
Now we don't need cpuacct_init(), and instead we just initialize
root_cpuacct when it's defined.
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/51553834.9090701@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/core.c | 2 | ||||
| -rw-r--r-- | kernel/sched/cpuacct.c | 11 | ||||
| -rw-r--r-- | kernel/sched/cpuacct.h | 5 |
3 files changed, 4 insertions, 14 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 92930a89529d..ee8c1bd703fe 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -6936,8 +6936,6 @@ void __init sched_init(void) #endif /* CONFIG_CGROUP_SCHED */ - cpuacct_init(); - for_each_possible_cpu(i) { struct rq *rq; diff --git a/kernel/sched/cpuacct.c b/kernel/sched/cpuacct.c index a691c4dd65be..04255814a0ed 100644 --- a/kernel/sched/cpuacct.c +++ b/kernel/sched/cpuacct.c @@ -59,7 +59,10 @@ static inline struct cpuacct *parent_ca(struct cpuacct *ca) } static DEFINE_PER_CPU(u64, root_cpuacct_cpuusage); -static struct cpuacct root_cpuacct; +static struct cpuacct root_cpuacct = { + .cpustat = &kernel_cpustat, + .cpuusage = &root_cpuacct_cpuusage, +}; /* create a new cpu accounting group */ static struct cgroup_subsys_state *cpuacct_css_alloc(struct cgroup *cgrp) @@ -288,12 +291,6 @@ void cpuacct_account_field(struct task_struct *p, int index, u64 val) rcu_read_unlock(); } -void __init cpuacct_init(void) -{ - root_cpuacct.cpustat = &kernel_cpustat; - root_cpuacct.cpuusage = &root_cpuacct_cpuusage; -} - struct cgroup_subsys cpuacct_subsys = { .name = "cpuacct", .css_alloc = cpuacct_css_alloc, diff --git a/kernel/sched/cpuacct.h b/kernel/sched/cpuacct.h index 51cd76eb4f0f..ed605624a5e7 100644 --- a/kernel/sched/cpuacct.h +++ b/kernel/sched/cpuacct.h @@ -1,15 +1,10 @@ #ifdef CONFIG_CGROUP_CPUACCT -extern void cpuacct_init(void); extern void cpuacct_charge(struct task_struct *tsk, u64 cputime); extern void cpuacct_account_field(struct task_struct *p, int index, u64 val); #else -static inline void cpuacct_init(void) -{ -} - static inline void cpuacct_charge(struct task_struct *tsk, u64 cputime) { } |