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From e0764ef7577519de460fc2c2d52127eafb077200 Mon Sep 17 00:00:00 2001
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Message-Id: <e0764ef7577519de460fc2c2d52127eafb077200@dist-git>
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From: Pavel Hrdina <phrdina@redhat.com>
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Date: Mon, 1 Jul 2019 17:07:50 +0200
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Subject: [PATCH] vircgroup: introduce virCgroupV2GetCpuacctUsage
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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 567fcbdca56ac409e856a0be8425b2218d02fe81)
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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: <26dc66d290ee4d5a4ba67470552df9d2fa4ae86b.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 | 33 +++++++++++++++++++++++++++++++++
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1 file changed, 33 insertions(+)
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diff --git a/src/util/vircgroupv2.c b/src/util/vircgroupv2.c
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index 55f79af204..afa243b3c7 100644
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--- a/src/util/vircgroupv2.c
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+++ b/src/util/vircgroupv2.c
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@@ -1456,6 +1456,37 @@ virCgroupV2SupportsCpuBW(virCgroupPtr cgroup)
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}
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+static int
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+virCgroupV2GetCpuacctUsage(virCgroupPtr group,
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+ unsigned long long *usage)
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+{
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+ VIR_AUTOFREE(char *) str = NULL;
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+ char *tmp;
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+
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+ if (virCgroupGetValueStr(group, VIR_CGROUP_CONTROLLER_CPUACCT,
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+ "cpu.stat", &str) < 0) {
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+ return -1;
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+ }
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+
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+ if (!(tmp = strstr(str, "usage_usec "))) {
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+ virReportError(VIR_ERR_INTERNAL_ERROR,
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+ _("cannot parse cpu usage stat '%s'"), str);
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+ return -1;
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+ }
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+ tmp += strlen("usage_usec ");
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+
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+ if (virStrToLong_ull(tmp, &tmp, 10, usage) < 0) {
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+ virReportError(VIR_ERR_INTERNAL_ERROR,
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+ _("Failed to parse value '%s' as number."), tmp);
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+ return -1;
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+ }
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+
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+ *usage *= 1000;
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+
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+ return 0;
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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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@@ -1511,6 +1542,8 @@ virCgroupBackend virCgroupV2Backend = {
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.setCpuCfsQuota = virCgroupV2SetCpuCfsQuota,
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.getCpuCfsQuota = virCgroupV2GetCpuCfsQuota,
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.supportsCpuBW = virCgroupV2SupportsCpuBW,
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+
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+ .getCpuacctUsage = virCgroupV2GetCpuacctUsage,
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};
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--
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2.22.0
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