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cgroup: add dummy css_put() for !CONFIG_CGROUPS

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This will later be depended upon by the scheduled cgroup writeback
support.

Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tejun Heo 2015-01-06 12:02:46 -05:00
parent 24dab7a7b3
commit f3ba53802e
1 changed files with 4 additions and 0 deletions
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4
include/linux/cgroup.h
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@ -943,6 +943,8 @@ struct cgroup_subsys_state *css_tryget_online_from_dir(struct dentry *dentry,
#else /* !CONFIG_CGROUPS */
struct cgroup_subsys_state;
static inline int cgroup_init_early(void) { return 0; }
static inline int cgroup_init(void) { return 0; }
static inline void cgroup_fork(struct task_struct *p) {}
@ -955,6 +957,8 @@ static inline int cgroupstats_build(struct cgroupstats *stats,
return -EINVAL;
}
static inline void css_put(struct cgroup_subsys_state *css) {}
/* No cgroups - nothing to do */
static inline int cgroup_attach_task_all(struct task_struct *from,
struct task_struct *t)