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cgroup: Kill subsys.active flag 

The only user was cpuacct.

Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Li Zefan <lizefan@huawei.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/5155385A.4040207@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Li Zefan 2013-03-29 14:44:42 +08:00 committed by Ingo Molnar
parent a2b0ae25fc
commit 479f614110
2 changed files with 0 additions and 4 deletions
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1
include/linux/cgroup.h
View File

@ -458,7 +458,6 @@ struct cgroup_subsys {
void (*bind)(struct cgroup *root); void (*bind)(struct cgroup *root);
int subsys_id; int subsys_id;
int active;
int disabled; int disabled;
int early_init; int early_init;
/* /*

3
kernel/cgroup.c
View File

@ -4468,7 +4468,6 @@ static void __init cgroup_init_subsys(struct cgroup_subsys *ss)
* need to invoke fork callbacks here. */ * need to invoke fork callbacks here. */
BUG_ON(!list_empty(&init_task.tasks)); BUG_ON(!list_empty(&init_task.tasks));
ss->active = 1;
BUG_ON(online_css(ss, dummytop)); BUG_ON(online_css(ss, dummytop));
mutex_unlock(&cgroup_mutex); mutex_unlock(&cgroup_mutex);
@ -4573,7 +4572,6 @@ int __init_or_module cgroup_load_subsys(struct cgroup_subsys *ss)
} }
write_unlock(&css_set_lock); write_unlock(&css_set_lock);
ss->active = 1;
ret = online_css(ss, dummytop); ret = online_css(ss, dummytop);
if (ret) if (ret)
goto err_unload; goto err_unload;
@ -4614,7 +4612,6 @@ void cgroup_unload_subsys(struct cgroup_subsys *ss)
mutex_lock(&cgroup_mutex); mutex_lock(&cgroup_mutex);
offline_css(ss, dummytop); offline_css(ss, dummytop);
ss->active = 0;
if (ss->use_id) if (ss->use_id)
idr_destroy(&ss->idr); idr_destroy(&ss->idr);