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From 6d526969ab72e7c35b988a7154d8343001a05208 Mon Sep 17 00:00:00 2001
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Message-Id: <6d526969ab72e7c35b988a7154d8343001a05208@dist-git>
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From: Pavel Hrdina <phrdina@redhat.com>
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Date: Thu, 25 Jul 2019 13:37:02 +0200
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Subject: [PATCH] vircgroupv2: store enabled controllers
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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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In cgroups v2 when a new group is created by default no controller is
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enabled so the detection code will not detect any controllers.
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When enabling the controllers we should also store them for the group.
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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
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Acked-by: Peter Krempa <pkrempa@redhat.com>
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(cherry picked from commit 56fdf3f025207a550726767e3f0ec1f290603ba4)
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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: <3cef886d4257a746e5a7182246d5457664d8bcec.1564054553.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 | 11 +++++++----
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 1 file changed, 7 insertions(+), 4 deletions(-)
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diff --git a/src/util/vircgroupv2.c b/src/util/vircgroupv2.c
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index 7b3cd64cc5..9ae47e775e 100644
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--- a/src/util/vircgroupv2.c
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+++ b/src/util/vircgroupv2.c
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@@ -364,7 +364,8 @@ virCgroupV2PathOfController(virCgroupPtr group,
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  *          0 on success
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  */
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 static int
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-virCgroupV2EnableController(virCgroupPtr parent,
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+virCgroupV2EnableController(virCgroupPtr group,
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+                            virCgroupPtr parent,
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                             int controller,
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                             bool report)
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 {
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@@ -390,6 +391,8 @@ virCgroupV2EnableController(virCgroupPtr parent,
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         return -2;
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     }
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+    group->unified.controllers |= 1 << controller;
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+
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     return 0;
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 }
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@@ -431,14 +434,14 @@ virCgroupV2MakeGroup(virCgroupPtr parent ATTRIBUTE_UNUSED,
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             }
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             if (virCgroupV2HasController(parent, VIR_CGROUP_CONTROLLER_CPU) &&
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-                virCgroupV2EnableController(parent,
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+                virCgroupV2EnableController(group, parent,
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                                             VIR_CGROUP_CONTROLLER_CPU,
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                                             true) < 0) {
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                 return -1;
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             }
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             if (virCgroupV2HasController(parent, VIR_CGROUP_CONTROLLER_CPUSET) &&
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-                virCgroupV2EnableController(parent,
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+                virCgroupV2EnableController(group, parent,
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                                             VIR_CGROUP_CONTROLLER_CPUSET,
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                                             true) < 0) {
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                 return -1;
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@@ -455,7 +458,7 @@ virCgroupV2MakeGroup(virCgroupPtr parent ATTRIBUTE_UNUSED,
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                 if (i == VIR_CGROUP_CONTROLLER_CPUACCT)
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                     continue;
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-                rc = virCgroupV2EnableController(parent, i, false);
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+                rc = virCgroupV2EnableController(group, parent, i, false);
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                 if (rc < 0) {
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                     if (rc == -2) {
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                         virResetLastError();
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-- 
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2.22.0
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