From 2a826bcdbe8e34af71634250ae814d5ff81d6ffc Mon Sep 17 00:00:00 2001

Message-Id: <2a826bcdbe8e34af71634250ae814d5ff81d6ffc@dist-git>

From: Pavel Hrdina <phrdina@redhat.com>

Date: Mon, 1 Jul 2019 17:07:24 +0200

Subject: [PATCH] vircgroup: introduce virCgroupV2PathOfController

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

(cherry picked from commit 0542640a9c480993c7e8be6917b0f513277b4cea)

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

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

Message-Id: <91b63d07af48bdb0fdc9648f4e5e4808cc90ad0e.1561993100.git.phrdina@redhat.com>

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

---

 src/util/vircgroupv2.c | 24 ++++++++++++++++++++++++

 1 file changed, 24 insertions(+)

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

index 65cbad533b..6695901766 100644

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

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

@@ -315,6 +315,29 @@ virCgroupV2GetAnyController(virCgroupPtr group)

 }

+static int

+virCgroupV2PathOfController(virCgroupPtr group,

+                            int controller,

+                            const char *key,

+                            char **path)

+{

+    if (!virCgroupV2HasController(group, controller)) {

+        virReportError(VIR_ERR_INTERNAL_ERROR,

+                       _("v2 controller '%s' is not available"),

+                       virCgroupV2ControllerTypeToString(controller));

+        return -1;

+    }

+

+    if (virAsprintf(path, "%s%s/%s",

+                    group->unified.mountPoint,

+                    group->unified.placement,

+                    key ? key : "") < 0)

+        return -1;

+

+    return 0;

+}

+

+

 virCgroupBackend virCgroupV2Backend = {

     .type = VIR_CGROUP_BACKEND_TYPE_V2,

@@ -329,6 +352,7 @@ virCgroupBackend virCgroupV2Backend = {

     .detectControllers = virCgroupV2DetectControllers,

     .hasController = virCgroupV2HasController,

     .getAnyController = virCgroupV2GetAnyController,

+    .pathOfController = virCgroupV2PathOfController,

 };

-- 

2.22.0