From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 3 Sep 2015 16:28:21 +0000 (+0200)
Subject: cgroup: make sure cg_is_empty_recursive() returns 1 for non-existing cgroups
X-Git-Tag: v226~31^2~11
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=9a66c87a2386468fd3adc250cd9003644a7a5e6b;p=thirdparty%2Fsystemd.git

cgroup: make sure cg_is_empty_recursive() returns 1 for non-existing cgroups

Previously, on the legacy hierarchy a non-existing cgroup was considered
identical to an empty one, but the unified hierarchy the check for a
non-existing one returned ENOENT.
---

diff --git a/src/basic/cgroup-util.c b/src/basic/cgroup-util.c
index 3ef96b238e6..bf897c9b2dc 100644
--- a/src/basic/cgroup-util.c
+++ b/src/basic/cgroup-util.c
@@ -1002,6 +1002,8 @@ int cg_is_empty_recursive(const char *controller, const char *path) {
                         return r;
 
                 r = read_one_line_file(populated, &t);
+                if (r == -ENOENT)
+                        return 1;
                 if (r < 0)
                         return r;