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sched/cpuacct: Clean up cpuacct.h 

Now most of the code in cpuacct.h can be moved to cpuacct.c

Signed-off-by: Li Zefan <lizefan@huawei.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/515536D5.2080401@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Li Zefan 2013-03-29 14:38:13 +08:00 committed by Ingo Molnar
parent 5f40d80432
commit d1712796a8
2 changed files with 43 additions and 47 deletions
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44
kernel/sched/cpuacct.c
View File

@ -16,7 +16,49 @@
* (balbir@in.ibm.com).
*/
struct cpuacct root_cpuacct;
/* Time spent by the tasks of the cpu accounting group executing in ... */
enum cpuacct_stat_index {
CPUACCT_STAT_USER, /* ... user mode */
CPUACCT_STAT_SYSTEM, /* ... kernel mode */
CPUACCT_STAT_NSTATS,
};
/* track cpu usage of a group of tasks and its child groups */
struct cpuacct {
struct cgroup_subsys_state css;
/* cpuusage holds pointer to a u64-type object on every cpu */
u64 __percpu *cpuusage;
struct kernel_cpustat __percpu *cpustat;
};
/* return cpu accounting group corresponding to this container */
static inline struct cpuacct *cgroup_ca(struct cgroup *cgrp)
{
return container_of(cgroup_subsys_state(cgrp, cpuacct_subsys_id),
struct cpuacct, css);
}
/* return cpu accounting group to which this task belongs */
static inline struct cpuacct *task_ca(struct task_struct *tsk)
{
return container_of(task_subsys_state(tsk, cpuacct_subsys_id),
struct cpuacct, css);
}
static inline struct cpuacct *__parent_ca(struct cpuacct *ca)
{
return cgroup_ca(ca->css.cgroup->parent);
}
static inline struct cpuacct *parent_ca(struct cpuacct *ca)
{
if (!ca->css.cgroup->parent)
return NULL;
return cgroup_ca(ca->css.cgroup->parent);
}
static struct cpuacct root_cpuacct;
/* create a new cpu accounting group */
static struct cgroup_subsys_state *cpuacct_css_alloc(struct cgroup *cgrp)

46
kernel/sched/cpuacct.h
View File

@ -1,51 +1,5 @@
/* Time spent by the tasks of the cpu accounting group executing in ... */
enum cpuacct_stat_index {
CPUACCT_STAT_USER, /* ... user mode */
CPUACCT_STAT_SYSTEM, /* ... kernel mode */
CPUACCT_STAT_NSTATS,
};
#ifdef CONFIG_CGROUP_CPUACCT
#include <linux/cgroup.h>
/* track cpu usage of a group of tasks and its child groups */
struct cpuacct {
struct cgroup_subsys_state css;
/* cpuusage holds pointer to a u64-type object on every cpu */
u64 __percpu *cpuusage;
struct kernel_cpustat __percpu *cpustat;
};
extern struct cgroup_subsys cpuacct_subsys;
extern struct cpuacct root_cpuacct;
/* return cpu accounting group corresponding to this container */
static inline struct cpuacct *cgroup_ca(struct cgroup *cgrp)
{
return container_of(cgroup_subsys_state(cgrp, cpuacct_subsys_id),
struct cpuacct, css);
}
/* return cpu accounting group to which this task belongs */
static inline struct cpuacct *task_ca(struct task_struct *tsk)
{
return container_of(task_subsys_state(tsk, cpuacct_subsys_id),
struct cpuacct, css);
}
static inline struct cpuacct *__parent_ca(struct cpuacct *ca)
{
return cgroup_ca(ca->css.cgroup->parent);
}
static inline struct cpuacct *parent_ca(struct cpuacct *ca)
{
if (!ca->css.cgroup->parent)
return NULL;
return cgroup_ca(ca->css.cgroup->parent);
}
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);