From 6fc9abce93fb193d748c45dbe47920b287c9aa07 Mon Sep 17 00:00:00 2001

Message-Id: <6fc9abce93fb193d748c45dbe47920b287c9aa07@dist-git>

From: Pavel Hrdina <phrdina@redhat.com>

Date: Mon, 1 Jul 2019 17:07:23 +0200

Subject: [PATCH] vircgroup: introduce virCgroupV2GetAnyController

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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>

(cherry picked from commit 171c700cd8c5509dc868c00faed9a16feaa2339d)

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1689297

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>

Message-Id: <2bc9d83fa5195d1650a8801c69b850ff86fd8386.1561993100.git.phrdina@redhat.com>

Reviewed-by: Ján Tomko <jtomko@redhat.com>

---

 src/util/vircgroupv2.c | 9 +++++++++

 1 file changed, 9 insertions(+)

diff --git a/src/util/vircgroupv2.c b/src/util/vircgroupv2.c

index babce95aeb..65cbad533b 100644

--- a/src/util/vircgroupv2.c

+++ b/src/util/vircgroupv2.c

@@ -307,6 +307,14 @@ virCgroupV2HasController(virCgroupPtr group,

 }

+static int

+virCgroupV2GetAnyController(virCgroupPtr group)

+{

+    /* The least significant bit is position 1. */

+    return ffs(group->unified.controllers) - 1;

+}

+

+

 virCgroupBackend virCgroupV2Backend = {

     .type = VIR_CGROUP_BACKEND_TYPE_V2,

@@ -320,6 +328,7 @@ virCgroupBackend virCgroupV2Backend = {

     .stealPlacement = virCgroupV2StealPlacement,

     .detectControllers = virCgroupV2DetectControllers,

     .hasController = virCgroupV2HasController,

+    .getAnyController = virCgroupV2GetAnyController,

 };

-- 

2.22.0