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From 0f9d55fe0fbbdc66a5fdc2236c9433aab840a1b9 Mon Sep 17 00:00:00 2001
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Message-Id: <0f9d55fe0fbbdc66a5fdc2236c9433aab840a1b9@dist-git>
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From: Pavel Hrdina <phrdina@redhat.com>
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Date: Mon, 1 Jul 2019 17:07:41 +0200
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Subject: [PATCH] vircgroup: introduce virCgroupV2GetMemoryUsage
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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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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
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(cherry picked from commit 495f60edcb123a714706f765027ea190f8d20da3)
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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: <fe7485f1f5e5743721ff623ecddac0d27dbc3f1e.1561993100.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 | 15 +++++++++++++++
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 1 file changed, 15 insertions(+)
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diff --git a/src/util/vircgroupv2.c b/src/util/vircgroupv2.c
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index 1c7854909f..87d357b0a7 100644
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--- a/src/util/vircgroupv2.c
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+++ b/src/util/vircgroupv2.c
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@@ -1116,6 +1116,20 @@ virCgroupV2GetMemoryStat(virCgroupPtr group,
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 }
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+static int
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+virCgroupV2GetMemoryUsage(virCgroupPtr group,
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+                          unsigned long *kb)
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+{
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+    unsigned long long usage_in_bytes;
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+    int ret = virCgroupGetValueU64(group,
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+                                   VIR_CGROUP_CONTROLLER_MEMORY,
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+                                   "memory.current", &usage_in_bytes);
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+    if (ret == 0)
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+        *kb = (unsigned long) usage_in_bytes >> 10;
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+    return ret;
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+}
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+
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+
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 virCgroupBackend virCgroupV2Backend = {
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     .type = VIR_CGROUP_BACKEND_TYPE_V2,
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@@ -1155,6 +1169,7 @@ virCgroupBackend virCgroupV2Backend = {
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     .setMemory = virCgroupV2SetMemory,
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     .getMemoryStat = virCgroupV2GetMemoryStat,
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+    .getMemoryUsage = virCgroupV2GetMemoryUsage,
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 };
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-- 
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2.22.0
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