1 files changed, 20 insertions, 19 deletions

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 7a10742b389a..622b7efc5ade 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -7094,16 +7094,17 @@ static inline struct task_group *cgroup_tg(struct cgroup *cgrp)
         return css_tg(cgroup_css(cgrp, cpu_cgroup_subsys_id));
 }
 
-static struct cgroup_subsys_state *cpu_cgroup_css_alloc(struct cgroup *cgrp)
+static struct cgroup_subsys_state *
+cpu_cgroup_css_alloc(struct cgroup_subsys_state *parent_css)
 {
-        struct task_group *tg, *parent;
+        struct task_group *parent = css_tg(parent_css);
+        struct task_group *tg;
 
-        if (!cgrp->parent) {
+        if (!parent) {
                 /* This is early initialization for the top cgroup */
                 return &root_task_group.css;
         }
 
-        parent = cgroup_tg(cgrp->parent);
         tg = sched_create_group(parent);
         if (IS_ERR(tg))
                 return ERR_PTR(-ENOMEM);
@@ -7111,38 +7112,38 @@ static struct cgroup_subsys_state *cpu_cgroup_css_alloc(struct cgroup *cgrp)
         return &tg->css;
 }
 
-static int cpu_cgroup_css_online(struct cgroup *cgrp)
+static int cpu_cgroup_css_online(struct cgroup_subsys_state *css)
 {
-        struct task_group *tg = cgroup_tg(cgrp);
-        struct task_group *parent = css_tg(css_parent(&tg->css));
+        struct task_group *tg = css_tg(css);
+        struct task_group *parent = css_tg(css_parent(css));
 
         if (parent)
                 sched_online_group(tg, parent);
         return 0;
 }
 
-static void cpu_cgroup_css_free(struct cgroup *cgrp)
+static void cpu_cgroup_css_free(struct cgroup_subsys_state *css)
 {
-        struct task_group *tg = cgroup_tg(cgrp);
+        struct task_group *tg = css_tg(css);
 
         sched_destroy_group(tg);
 }
 
-static void cpu_cgroup_css_offline(struct cgroup *cgrp)
+static void cpu_cgroup_css_offline(struct cgroup_subsys_state *css)
 {
-        struct task_group *tg = cgroup_tg(cgrp);
+        struct task_group *tg = css_tg(css);
 
         sched_offline_group(tg);
 }
 
-static int cpu_cgroup_can_attach(struct cgroup *cgrp,
+static int cpu_cgroup_can_attach(struct cgroup_subsys_state *css,
                                  struct cgroup_taskset *tset)
 {
         struct task_struct *task;
 
-        cgroup_taskset_for_each(task, cgrp, tset) {
+        cgroup_taskset_for_each(task, css->cgroup, tset) {
 #ifdef CONFIG_RT_GROUP_SCHED
-                if (!sched_rt_can_attach(cgroup_tg(cgrp), task))
+                if (!sched_rt_can_attach(css_tg(css), task))
                         return -EINVAL;
 #else
                 /* We don't support RT-tasks being in separate groups */
@@ -7153,18 +7154,18 @@ static int cpu_cgroup_can_attach(struct cgroup *cgrp,
         return 0;
 }
 
-static void cpu_cgroup_attach(struct cgroup *cgrp,
+static void cpu_cgroup_attach(struct cgroup_subsys_state *css,
                               struct cgroup_taskset *tset)
 {
         struct task_struct *task;
 
-        cgroup_taskset_for_each(task, cgrp, tset)
+        cgroup_taskset_for_each(task, css->cgroup, tset)
                 sched_move_task(task);
 }
 
-static void
-cpu_cgroup_exit(struct cgroup *cgrp, struct cgroup *old_cgrp,
-                struct task_struct *task)
+static void cpu_cgroup_exit(struct cgroup_subsys_state *css,
+                            struct cgroup_subsys_state *old_css,
+                            struct task_struct *task)
 {
         /*
          * cgroup_exit() is called in the copy_process() failure path.