From nobody Tue May 13 16:54:46 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 153846997279569.23690874401177; Tue, 2 Oct 2018 01:46:12 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 24BF913A8F; Tue, 2 Oct 2018 08:46:10 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id D47296A224; Tue, 2 Oct 2018 08:46:09 +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 7A4C6181D0B0; Tue, 2 Oct 2018 08:46:09 +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 w928jDmP031529 for ; Tue, 2 Oct 2018 04:45:13 -0400 Received: by smtp.corp.redhat.com (Postfix) id C984910016DC; Tue, 2 Oct 2018 08:45:13 +0000 (UTC) Received: from antique-work.brq.redhat.com (unknown [10.43.2.181]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4E02A100194A for ; Tue, 2 Oct 2018 08:45:13 +0000 (UTC) From: Pavel Hrdina To: libvir-list@redhat.com Date: Tue, 2 Oct 2018 10:44:18 +0200 Message-Id: <279e8004f43dc869fe071b2994671034f3c9d7b7.1538469654.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 34/53] vircgroup: introduce virCgroupV2SetMemSwapHardLimit 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 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Tue, 02 Oct 2018 08:46:11 +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 | 62 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) diff --git a/src/util/vircgroupv2.c b/src/util/vircgroupv2.c index b5cc5f8f2e..ae352f0212 100644 --- a/src/util/vircgroupv2.c +++ b/src/util/vircgroupv2.c @@ -1232,6 +1232,66 @@ virCgroupV2GetMemorySoftLimit(virCgroupPtr group, } =20 =20 +static int +virCgroupV2SetMemSwapHardLimit(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.swap.max", + "max"); + } else { + return virCgroupSetValueU64(group, + VIR_CGROUP_CONTROLLER_MEMORY, + "memory.swap.max", + kb << 10); + } +} + + +static int +virCgroupV2GetMemSwapHardLimit(virCgroupPtr group, + unsigned long long *kb) +{ + VIR_AUTOFREE(char *) value =3D NULL; + unsigned long long max; + + if (virCgroupGetValueStr(group, + VIR_CGROUP_CONTROLLER_MEMORY, + "memory.swap.max", &value) < 0) { + return -1; + } + + if (STREQ(value, "max")) { + *kb =3D VIR_DOMAIN_MEMORY_PARAM_UNLIMITED; + return 0; + } + + if (virStrToLong_ull(value, NULL, 10, &max) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Failed to parse value '%s' as number."), + value); + return -1; + } + + *kb =3D max >> 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 @@ -1276,6 +1336,8 @@ virCgroupBackend virCgroupV2Backend =3D { .getMemoryHardLimit =3D virCgroupV2GetMemoryHardLimit, .setMemorySoftLimit =3D virCgroupV2SetMemorySoftLimit, .getMemorySoftLimit =3D virCgroupV2GetMemorySoftLimit, + .setMemSwapHardLimit =3D virCgroupV2SetMemSwapHardLimit, + .getMemSwapHardLimit =3D virCgroupV2GetMemSwapHardLimit, }; =20 =20 --=20 2.17.1 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list