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authorTejun Heo <tj@kernel.org>2015-10-15 16:41:50 -0400
committerTejun Heo <tj@kernel.org>2015-10-15 16:41:50 -0400
commit052c3f3a0b03651d94050d917ebc1df46a31c2f0 (patch)
treeb27c394febdb8b51735934e1e4f41a1911667165
parentad2ed2b35b76f01a876230a3a632efbc81d3fcd6 (diff)
cgroup: relocate cgroup_[try]get/put()
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>
-rw-r--r--kernel/cgroup.c32
1 files changed, 16 insertions, 16 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 855313d01e85..ab5c9a5a0596 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -428,6 +428,22 @@ static inline bool cgroup_is_dead(const struct cgroup *cgrp)
428 return !(cgrp->self.flags & CSS_ONLINE); 428 return !(cgrp->self.flags & CSS_ONLINE);
429} 429}
430 430
431static void cgroup_get(struct cgroup *cgrp)
432{
433 WARN_ON_ONCE(cgroup_is_dead(cgrp));
434 css_get(&cgrp->self);
435}
436
437static bool cgroup_tryget(struct cgroup *cgrp)
438{
439 return css_tryget(&cgrp->self);
440}
441
442static void cgroup_put(struct cgroup *cgrp)
443{
444 css_put(&cgrp->self);
445}
446
431struct cgroup_subsys_state *of_css(struct kernfs_open_file *of) 447struct cgroup_subsys_state *of_css(struct kernfs_open_file *of)
432{ 448{
433 struct cgroup *cgrp = of->kn->parent->priv; 449 struct cgroup *cgrp = of->kn->parent->priv;
@@ -1177,22 +1193,6 @@ static umode_t cgroup_file_mode(const struct cftype *cft)
1177 return mode; 1193 return mode;
1178} 1194}
1179 1195
1180static void cgroup_get(struct cgroup *cgrp)
1181{
1182 WARN_ON_ONCE(cgroup_is_dead(cgrp));
1183 css_get(&cgrp->self);
1184}
1185
1186static bool cgroup_tryget(struct cgroup *cgrp)
1187{
1188 return css_tryget(&cgrp->self);
1189}
1190
1191static void cgroup_put(struct cgroup *cgrp)
1192{
1193 css_put(&cgrp->self);
1194}
1195
1196/** 1196/**
1197 * cgroup_calc_child_subsys_mask - calculate child_subsys_mask 1197 * cgroup_calc_child_subsys_mask - calculate child_subsys_mask
1198 * @cgrp: the target cgroup 1198 * @cgrp: the target cgroup