From 26a17ca280a8b3c28d5514dbe7e3635783a5515b Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 21 Nov 2018 18:27:15 +0100
Subject: [PATCH] cgroup: add explanatory comment

---
 src/core/cgroup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/cgroup.c b/src/core/cgroup.c
index bc6df17c0be..7e5ee1b25b9 100644
--- a/src/core/cgroup.c
+++ b/src/core/cgroup.c
@@ -1312,7 +1312,7 @@ CGroupMask unit_get_members_mask(Unit *u) {
         /* Returns the mask of controllers all of the unit's children require, merged */
 
         if (u->cgroup_members_mask_valid)
-                return u->cgroup_members_mask;
+                return u->cgroup_members_mask; /* Use cached value if possible */
 
         u->cgroup_members_mask = 0;
 
-- 
2.47.3