From 9697d24cc223028555629af325af8607de350d06 Mon Sep 17 00:00:00 2001

Message-Id: <9697d24cc223028555629af325af8607de350d06@dist-git>

From: Pavel Hrdina <phrdina@redhat.com>

Date: Mon, 1 Jul 2019 17:07:39 +0200

Subject: [PATCH] vircgroup: introduce virCgroupV2SetMemory

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

(cherry picked from commit 63bd23a6ad17331cdc31bc07fd8b21a96d4b2eb0)

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

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

Message-Id: <d2076f596f9e8b58571e19334f23e295f72a2ee5.1561993100.git.phrdina@redhat.com>

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

---

 src/util/vircgroupv2.c | 29 +++++++++++++++++++++++++++++

 1 file changed, 29 insertions(+)

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

index 52d31925c2..1b7215d98b 100644

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

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

@@ -1015,6 +1015,33 @@ virCgroupV2GetBlkioDeviceWriteBps(virCgroupPtr group,

 }

+static int

+virCgroupV2SetMemory(virCgroupPtr group,

+                     unsigned long long kb)

+{

+    unsigned long long maxkb = VIR_DOMAIN_MEMORY_PARAM_UNLIMITED;

+

+    if (kb > maxkb) {

+        virReportError(VIR_ERR_INVALID_ARG,

+                       _("Memory '%llu' must be less than %llu"),

+                       kb, maxkb);

+        return -1;

+    }

+

+    if (kb == maxkb) {

+        return virCgroupSetValueStr(group,

+                                    VIR_CGROUP_CONTROLLER_MEMORY,

+                                    "memory.max",

+                                    "max");

+    } else {

+        return virCgroupSetValueU64(group,

+                                    VIR_CGROUP_CONTROLLER_MEMORY,

+                                    "memory.max",

+                                    kb << 10);

+    }

+}

+

+

 virCgroupBackend virCgroupV2Backend = {

     .type = VIR_CGROUP_BACKEND_TYPE_V2,

@@ -1051,6 +1078,8 @@ virCgroupBackend virCgroupV2Backend = {

     .getBlkioDeviceReadBps = virCgroupV2GetBlkioDeviceReadBps,

     .setBlkioDeviceWriteBps = virCgroupV2SetBlkioDeviceWriteBps,

     .getBlkioDeviceWriteBps = virCgroupV2GetBlkioDeviceWriteBps,

+

+    .setMemory = virCgroupV2SetMemory,

 };

-- 

2.22.0