cgroup: relocate cgroup_rm_cftypes()

cftype handling is about to be revamped.  Relocate cgroup_rm_cftypes()
above cgroup_add_cftypes() in preparation.  This is pure relocation.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>

1 files changed, 35 insertions, 35 deletions

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index a0fab71f200f..a2cbd1549995 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2418,6 +2418,41 @@ static int cgroup_init_cftypes(struct cgroup_subsys *ss, struct cftype *cfts)
 }
 
 /**
+ * cgroup_rm_cftypes - remove an array of cftypes from a subsystem
+ * @cfts: zero-length name terminated array of cftypes
+ *
+ * Unregister @cfts.  Files described by @cfts are removed from all
+ * existing cgroups and all future cgroups won't have them either.  This
+ * function can be called anytime whether @cfts' subsys is attached or not.
+ *
+ * Returns 0 on successful unregistration, -ENOENT if @cfts is not
+ * registered.
+ */
+int cgroup_rm_cftypes(struct cftype *cfts)
+{
+        struct cftype *found = NULL;
+        struct cftype_set *set;
+
+        if (!cfts || !cfts[0].ss)
+                return -ENOENT;
+
+        cgroup_cfts_prepare();
+
+        list_for_each_entry(set, &cfts[0].ss->cftsets, node) {
+                if (set->cfts == cfts) {
+                        list_del(&set->node);
+                        kfree(set);
+                        found = cfts;
+                        break;
+                }
+        }
+
+        cgroup_cfts_commit(found, false);
+        cgroup_exit_cftypes(cfts);
+        return found ? 0 : -ENOENT;
+}
+
+/**
  * cgroup_add_cftypes - add an array of cftypes to a subsystem
  * @ss: target cgroup subsystem
  * @cfts: zero-length name terminated array of cftypes
@@ -2455,41 +2490,6 @@ int cgroup_add_cftypes(struct cgroup_subsys *ss, struct cftype *cfts)
 EXPORT_SYMBOL_GPL(cgroup_add_cftypes);
 
 /**
- * cgroup_rm_cftypes - remove an array of cftypes from a subsystem
- * @cfts: zero-length name terminated array of cftypes
- *
- * Unregister @cfts.  Files described by @cfts are removed from all
- * existing cgroups and all future cgroups won't have them either.  This
- * function can be called anytime whether @cfts' subsys is attached or not.
- *
- * Returns 0 on successful unregistration, -ENOENT if @cfts is not
- * registered.
- */
-int cgroup_rm_cftypes(struct cftype *cfts)
-{
-        struct cftype *found = NULL;
-        struct cftype_set *set;
-
-        if (!cfts || !cfts[0].ss)
-                return -ENOENT;
-
-        cgroup_cfts_prepare();
-
-        list_for_each_entry(set, &cfts[0].ss->cftsets, node) {
-                if (set->cfts == cfts) {
-                        list_del(&set->node);
-                        kfree(set);
-                        found = cfts;
-                        break;
-                }
-        }
-
-        cgroup_cfts_commit(found, false);
-        cgroup_exit_cftypes(cfts);
-        return found ? 0 : -ENOENT;
-}
-
-/**
  * cgroup_task_count - count the number of tasks in a cgroup.
  * @cgrp: the cgroup in question
  *