cgroup: relocate cgroup_advance_iter()

For some reason, cgroup_advance_iter() is standing lonely all away
from its iter comrades.  Relocate it.

This is cosmetic.

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

1 files changed, 24 insertions, 24 deletions

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 91eac33fac86..d56d9363d4b3 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2982,30 +2982,6 @@ int cgroup_task_count(const struct cgroup *cgrp)
 }
 
 /*
- * Advance a list_head iterator.  The iterator should be positioned at
- * the start of a css_set
- */
-static void cgroup_advance_iter(struct cgroup *cgrp, struct cgroup_iter *it)
-{
-        struct list_head *l = it->cset_link;
-        struct cgrp_cset_link *link;
-        struct css_set *cset;
-
-        /* Advance to the next non-empty css_set */
-        do {
-                l = l->next;
-                if (l == &cgrp->cset_links) {
-                        it->cset_link = NULL;
-                        return;
-                }
-                link = list_entry(l, struct cgrp_cset_link, cset_link);
-                cset = link->cset;
-        } while (list_empty(&cset->tasks));
-        it->cset_link = l;
-        it->task = cset->tasks.next;
-}
-
-/*
  * To reduce the fork() overhead for systems that are not actually
  * using their cgroups capability, we don't maintain the lists running
  * through each css_set to its tasks until we see the list actually
@@ -3223,6 +3199,30 @@ css_next_descendant_post(struct cgroup_subsys_state *pos,
 }
 EXPORT_SYMBOL_GPL(css_next_descendant_post);
 
+/*
+ * Advance a list_head iterator.  The iterator should be positioned at
+ * the start of a css_set
+ */
+static void cgroup_advance_iter(struct cgroup *cgrp, struct cgroup_iter *it)
+{
+        struct list_head *l = it->cset_link;
+        struct cgrp_cset_link *link;
+        struct css_set *cset;
+
+        /* Advance to the next non-empty css_set */
+        do {
+                l = l->next;
+                if (l == &cgrp->cset_links) {
+                        it->cset_link = NULL;
+                        return;
+                }
+                link = list_entry(l, struct cgrp_cset_link, cset_link);
+                cset = link->cset;
+        } while (list_empty(&cset->tasks));
+        it->cset_link = l;
+        it->task = cset->tasks.next;
+}
+
 void cgroup_iter_start(struct cgroup *cgrp, struct cgroup_iter *it)
         __acquires(css_set_lock)
 {