cgtop: check cgroups after parsing options
authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Mon, 24 Apr 2017 23:28:05 +0000 (19:28 -0400)
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Tue, 25 Apr 2017 12:54:00 +0000 (08:54 -0400)
commit6d9f40d5db71eb3227898e1a58fee36d9c76d450
tree137dbe185e2e499ea51808d2134e1c81e0fc195c
parentcaf222104afe2d12f3a188a6bfee3a35f2d04fc6
cgtop: check cgroups after parsing options

We would try to determine controllers even if not necessary:
<mock-chroot><mock-chroot> sh-4.4# ./systemd-cgtop --help
Failed to determine supported controllers: No medium found
<mock-chroot><mock-chroot> sh-4.4# ./systemd-cgtop --version
Failed to determine supported controllers: No medium found

This broke check-help-systemd-cgtop under mock, but even apart
from that, the program should be able to print --version in any
circumstances.
src/cgtop/cgtop.c