From nobody Tue May 13 16:27:27 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 1538469940819783.01827405237; Tue, 2 Oct 2018 01:45:40 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D49F9C05D406; Tue, 2 Oct 2018 08:45:37 +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 93CAC3DE5; Tue, 2 Oct 2018 08:45:37 +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 3BEF341F6B; Tue, 2 Oct 2018 08:45:37 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id w928jCEj031516 for ; Tue, 2 Oct 2018 04:45:13 -0400 Received: by smtp.corp.redhat.com (Postfix) id F11FC100194A; Tue, 2 Oct 2018 08:45:12 +0000 (UTC) Received: from antique-work.brq.redhat.com (unknown [10.43.2.181]) by smtp.corp.redhat.com (Postfix) with ESMTP id 7554C10016DC for ; Tue, 2 Oct 2018 08:45:12 +0000 (UTC) From: Pavel Hrdina To: libvir-list@redhat.com Date: Tue, 2 Oct 2018 10:44:17 +0200 Message-Id: <320604415187b23b8d304ea7d9f95f909bb24e7e.1538469654.git.phrdina@redhat.com> In-Reply-To: References: In-Reply-To: References: X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-loop: libvir-list@redhat.com Subject: [libvirt] [PATCH 33/53] vircgroup: introduce virCgroupV2SetMemorySoftLimit 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 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Tue, 02 Oct 2018 08:45:39 +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 | 61 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) diff --git a/src/util/vircgroupv2.c b/src/util/vircgroupv2.c index 06522498f2..b5cc5f8f2e 100644 --- a/src/util/vircgroupv2.c +++ b/src/util/vircgroupv2.c @@ -1173,6 +1173,65 @@ virCgroupV2GetMemoryHardLimit(virCgroupPtr group, } =20 =20 +static int +virCgroupV2SetMemorySoftLimit(virCgroupPtr group, + unsigned long long kb) +{ + unsigned long long maxkb =3D 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 =3D=3D maxkb) { + return virCgroupSetValueStr(group, + VIR_CGROUP_CONTROLLER_MEMORY, + "memory.high", + "max"); + } else { + return virCgroupSetValueU64(group, + VIR_CGROUP_CONTROLLER_MEMORY, + "memory.high", + kb << 10); + } +} + + +static int +virCgroupV2GetMemorySoftLimit(virCgroupPtr group, + unsigned long long *kb) +{ + VIR_AUTOFREE(char *) value =3D NULL; + unsigned long long high; + + if (virCgroupGetValueStr(group, + VIR_CGROUP_CONTROLLER_MEMORY, + "memory.high", &value) < 0) + return -1; + + if (STREQ(value, "max")) { + *kb =3D VIR_DOMAIN_MEMORY_PARAM_UNLIMITED; + return 0; + } + + if (virStrToLong_ull(value, NULL, 10, &high) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Failed to parse value '%s' as number."), + value); + return -1; + } + + *kb =3D high >> 10; + if (*kb >=3D VIR_DOMAIN_MEMORY_PARAM_UNLIMITED) + *kb =3D VIR_DOMAIN_MEMORY_PARAM_UNLIMITED; + + return 0; +} + + virCgroupBackend virCgroupV2Backend =3D { .type =3D VIR_CGROUP_BACKEND_TYPE_V2, =20 @@ -1215,6 +1274,8 @@ virCgroupBackend virCgroupV2Backend =3D { .getMemoryUsage =3D virCgroupV2GetMemoryUsage, .setMemoryHardLimit =3D virCgroupV2SetMemoryHardLimit, .getMemoryHardLimit =3D virCgroupV2GetMemoryHardLimit, + .setMemorySoftLimit =3D virCgroupV2SetMemorySoftLimit, + .getMemorySoftLimit =3D virCgroupV2GetMemorySoftLimit, }; =20 =20 --=20 2.17.1 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list