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From aa699de198c52868d08679176dd8355deb24ef82 Mon Sep 17 00:00:00 2001
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Message-Id: <aa699de198c52868d08679176dd8355deb24ef82@dist-git>
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From: Pavel Hrdina <phrdina@redhat.com>
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Date: Mon, 1 Jul 2019 17:08:19 +0200
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Subject: [PATCH] util: vircgroupv2: enable CPU controller only if it's
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available
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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It might happen that we are not able to enable CPU controller so we
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can enable it for thread sub-cgroups only if it's available in parent
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cgroup.
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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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(cherry picked from commit f9d1c08557ddb981a0d889200431185a9c4920e0)
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Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1689297
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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
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Message-Id: <2a13e05dfbbe52f05541c881964ce92709e5d36a.1561993100.git.phrdina@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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---
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src/util/vircgroupv2.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/src/util/vircgroupv2.c b/src/util/vircgroupv2.c
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index 04cbadd6a6..98d313bf82 100644
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--- a/src/util/vircgroupv2.c
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+++ b/src/util/vircgroupv2.c
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@@ -403,7 +403,8 @@ virCgroupV2MakeGroup(virCgroupPtr parent ATTRIBUTE_UNUSED,
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return -1;
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}
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- if (virCgroupV2EnableController(parent,
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+ if (virCgroupV2HasController(parent, VIR_CGROUP_CONTROLLER_CPU) &&
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+ virCgroupV2EnableController(parent,
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VIR_CGROUP_CONTROLLER_CPU) < 0) {
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return -1;
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}
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--
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2.22.0
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