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cgroup: relocate cgroup_[try]get/put()

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Relocate cgroup_get(), cgroup_tryget() and cgroup_put() upwards.  This
is pure code reorganization to prepare for future changes.

Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tejun Heo 2015-10-15 16:41:50 -04:00
parent ad2ed2b35b
commit 052c3f3a0b
1 changed files with 16 additions and 16 deletions
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32
kernel/cgroup.c
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@ -428,6 +428,22 @@ static inline bool cgroup_is_dead(const struct cgroup *cgrp)
return !(cgrp->self.flags & CSS_ONLINE);
}
static void cgroup_get(struct cgroup *cgrp)
{
WARN_ON_ONCE(cgroup_is_dead(cgrp));
css_get(&cgrp->self);
}
static bool cgroup_tryget(struct cgroup *cgrp)
{
return css_tryget(&cgrp->self);
}
static void cgroup_put(struct cgroup *cgrp)
{
css_put(&cgrp->self);
}
struct cgroup_subsys_state *of_css(struct kernfs_open_file *of)
{
struct cgroup *cgrp = of->kn->parent->priv;
@ -1177,22 +1193,6 @@ static umode_t cgroup_file_mode(const struct cftype *cft)
return mode;
}
static void cgroup_get(struct cgroup *cgrp)
{
WARN_ON_ONCE(cgroup_is_dead(cgrp));
css_get(&cgrp->self);
}
static bool cgroup_tryget(struct cgroup *cgrp)
{
return css_tryget(&cgrp->self);
}
static void cgroup_put(struct cgroup *cgrp)
{
css_put(&cgrp->self);
}
/**
* cgroup_calc_child_subsys_mask - calculate child_subsys_mask
* @cgrp: the target cgroup