From 59084112841259e4ff74bde8ad7ebf32280fdcca Mon Sep 17 00:00:00 2001

Message-Id: <59084112841259e4ff74bde8ad7ebf32280fdcca@dist-git>

From: Pavel Hrdina <phrdina@redhat.com>

Date: Mon, 1 Jul 2019 17:07:49 +0200

Subject: [PATCH] vircgroup: introduce virCgroupV2SupportsCpuBW

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

(cherry picked from commit 5a4d90ae6af6ea5dd1bb6ae5e3fec7307a5f1257)

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

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

Message-Id: <e0f39a4ebc452685be49eaea66266fef5921c989.1561993100.git.phrdina@redhat.com>

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

---

 src/util/vircgroupv2.c | 16 ++++++++++++++++

 1 file changed, 16 insertions(+)

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

index a0a7e55493..55f79af204 100644

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

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

@@ -1441,6 +1441,21 @@ virCgroupV2GetCpuCfsQuota(virCgroupPtr group,

 }

+static bool

+virCgroupV2SupportsCpuBW(virCgroupPtr cgroup)

+{

+    VIR_AUTOFREE(char *) path = NULL;

+

+    if (virCgroupV2PathOfController(cgroup, VIR_CGROUP_CONTROLLER_CPU,

+                                    "cpu.max", &path) < 0) {

+        virResetLastError();

+        return false;

+    }

+

+    return virFileExists(path);

+}

+

+

 virCgroupBackend virCgroupV2Backend = {

     .type = VIR_CGROUP_BACKEND_TYPE_V2,

@@ -1495,6 +1510,7 @@ virCgroupBackend virCgroupV2Backend = {

     .getCpuCfsPeriod = virCgroupV2GetCpuCfsPeriod,

     .setCpuCfsQuota = virCgroupV2SetCpuCfsQuota,

     .getCpuCfsQuota = virCgroupV2GetCpuCfsQuota,

+    .supportsCpuBW = virCgroupV2SupportsCpuBW,

 };

-- 

2.22.0