[45/50] mesos git commit: Fix CGROUPS_ROOT_* tests on systemd platforms.

[vi...@apache.org]

Fix CGROUPS_ROOT_* tests on systemd platforms.

Tests do not run with systemd configured, so any dependency on systemd
will fail some checks.

This fixes the `LinuxLauncher` to use the correct systemd-guard function.

Review: https://reviews.apache.org/r/43432/


Project: http://git-wip-us.apache.org/repos/asf/mesos/repo
Commit: http://git-wip-us.apache.org/repos/asf/mesos/commit/a896cda4
Tree: http://git-wip-us.apache.org/repos/asf/mesos/tree/a896cda4
Diff: http://git-wip-us.apache.org/repos/asf/mesos/diff/a896cda4

Branch: refs/heads/0.26.x
Commit: a896cda4aa8bb9c9bbfba20dda4b68df8dbdf569
Parents: a05261d
Author: Joseph Wu <jo...@mesosphere.io>
Authored: Wed Feb 10 16:40:02 2016 -0800
Committer: Michael Park <mp...@apache.org>
Committed: Tue Mar 8 16:20:26 2016 -0500

----------------------------------------------------------------------
 src/slave/containerizer/linux_launcher.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/mesos/blob/a896cda4/src/slave/containerizer/linux_launcher.cpp
----------------------------------------------------------------------
diff --git a/src/slave/containerizer/linux_launcher.cpp b/src/slave/containerizer/linux_launcher.cpp
index 35f8db2..fbe88cd 100644
--- a/src/slave/containerizer/linux_launcher.cpp
+++ b/src/slave/containerizer/linux_launcher.cpp
@@ -113,7 +113,7 @@ Try<Launcher*> LinuxLauncher::create(const Flags& flags)
   return new LinuxLauncher(
       flags,
       freezerHierarchy.get(),
-      systemd::exists() ?
+      systemd::enabled() ?
         Some(systemd::hierarchy()) :
         Option<std::string>::none());
 }