From nobody Tue May 13 16:49:49 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=pass(p=none dis=none) header.from=redhat.com Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1538743593653482.09333636603037; Fri, 5 Oct 2018 05:46:33 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 7834730C11EB; Fri, 5 Oct 2018 12:46:31 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 648AB5D744; Fri, 5 Oct 2018 12:46:30 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id AF23A3D38F; Fri, 5 Oct 2018 12:46:29 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id w95CkCGf023203 for ; Fri, 5 Oct 2018 08:46:12 -0400 Received: by smtp.corp.redhat.com (Postfix) id 3CC8E16BE0; Fri, 5 Oct 2018 12:46:12 +0000 (UTC) Received: from antique-work.brq.redhat.com (unknown [10.43.2.181]) by smtp.corp.redhat.com (Postfix) with ESMTP id B006045DC for ; Fri, 5 Oct 2018 12:46:11 +0000 (UTC) From: Pavel Hrdina To: libvir-list@redhat.com Date: Fri, 5 Oct 2018 14:43:58 +0200 Message-Id: <28ccf52001fd16ded5ee286d403f25078ccb2dda.1538742563.git.phrdina@redhat.com> In-Reply-To: References: In-Reply-To: References: X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-loop: libvir-list@redhat.com Subject: [libvirt] [PATCH v2 37/53] [ACKED] vircgroup: introduce virCgroupV2(Set|Get)CpuCfsQuota X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.46]); Fri, 05 Oct 2018 12:46:32 +0000 (UTC) X-ZohoMail: RDMRC_0 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Signed-off-by: Pavel Hrdina --- src/util/vircgroupv2.c | 52 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) diff --git a/src/util/vircgroupv2.c b/src/util/vircgroupv2.c index 24c5bb3e3d..26fdb46098 100644 --- a/src/util/vircgroupv2.c +++ b/src/util/vircgroupv2.c @@ -1399,6 +1399,56 @@ virCgroupV2GetCpuCfsPeriod(virCgroupPtr group, } =20 =20 +static int +virCgroupV2SetCpuCfsQuota(virCgroupPtr group, + long long cfs_quota) +{ + /* The cfs_quota should be greater or equal than 1ms */ + if (cfs_quota >=3D 0 && + (cfs_quota < 1000 || + cfs_quota > ULLONG_MAX / 1000)) { + virReportError(VIR_ERR_INVALID_ARG, + _("cfs_quota '%lld' must be in range (1000, %llu)"), + cfs_quota, ULLONG_MAX / 1000); + return -1; + } + + if (cfs_quota =3D=3D ULLONG_MAX / 1000) { + return virCgroupSetValueStr(group, + VIR_CGROUP_CONTROLLER_CPU, + "cpu.max", "max"); + } + + return virCgroupSetValueI64(group, + VIR_CGROUP_CONTROLLER_CPU, + "cpu.max", cfs_quota); +} + + +static int +virCgroupV2GetCpuCfsQuota(virCgroupPtr group, + long long *cfs_quota) +{ + VIR_AUTOFREE(char *) str =3D NULL; + + if (virCgroupGetValueStr(group, VIR_CGROUP_CONTROLLER_CPU, + "cpu.max", &str) < 0) { + return -1; + } + + if (STREQLEN(str, "max", 3)) + *cfs_quota =3D ULLONG_MAX / 1000; + + if (virStrToLong_ll(str, NULL, 10, cfs_quota) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Failed to parse value '%s' from cpu.max."), str); + return -1; + } + + return 0; +} + + virCgroupBackend virCgroupV2Backend =3D { .type =3D VIR_CGROUP_BACKEND_TYPE_V2, =20 @@ -1451,6 +1501,8 @@ virCgroupBackend virCgroupV2Backend =3D { .getCpuShares =3D virCgroupV2GetCpuShares, .setCpuCfsPeriod =3D virCgroupV2SetCpuCfsPeriod, .getCpuCfsPeriod =3D virCgroupV2GetCpuCfsPeriod, + .setCpuCfsQuota =3D virCgroupV2SetCpuCfsQuota, + .getCpuCfsQuota =3D virCgroupV2GetCpuCfsQuota, }; =20 =20 --=20 2.17.1 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list