From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 21 Nov 2018 17:27:15 +0000 (+0100)
Subject: cgroup: add explanatory comment
X-Git-Tag: v240~225^2~13
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=26a17ca280a8b3c28d5514dbe7e3635783a5515b;p=thirdparty%2Fsystemd.git

cgroup: add explanatory comment
---

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;