From nobody Tue May 13 16:06:31 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 1538469929414148.75220599937586; Tue, 2 Oct 2018 01:45:29 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id F2D73AC2D5; Tue, 2 Oct 2018 08:45:26 +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 AC22317F46; Tue, 2 Oct 2018 08:45:26 +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 5333E4A46D; Tue, 2 Oct 2018 08:45:26 +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 w928iumc031349 for ; Tue, 2 Oct 2018 04:44:56 -0400 Received: by smtp.corp.redhat.com (Postfix) id 256ED100034B; Tue, 2 Oct 2018 08:44:56 +0000 (UTC) Received: from antique-work.brq.redhat.com (unknown [10.43.2.181]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9F724100194A for ; Tue, 2 Oct 2018 08:44:55 +0000 (UTC) From: Pavel Hrdina To: libvir-list@redhat.com Date: Tue, 2 Oct 2018 10:44:02 +0200 Message-Id: <1f62e23ab1dc9a020fb01bfdd84c166896546c11.1538469654.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 18/53] vircgroup: introduce virCgroupV2BindMount 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 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Tue, 02 Oct 2018 08:45:27 +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 | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/src/util/vircgroupv2.c b/src/util/vircgroupv2.c index c6a9e0a7df..e30f438015 100644 --- a/src/util/vircgroupv2.c +++ b/src/util/vircgroupv2.c @@ -21,6 +21,7 @@ =20 #ifdef __linux__ # include +# include #endif /* __linux__ */ =20 #include "internal.h" @@ -462,6 +463,38 @@ virCgroupV2HasEmptyTasks(virCgroupPtr cgroup, } =20 =20 +static int +virCgroupV2BindMount(virCgroupPtr group, + const char *oldroot, + const char *mountopts) +{ + VIR_AUTOFREE(char *) opts =3D NULL; + VIR_AUTOFREE(char *) src =3D NULL; + + VIR_DEBUG("Mounting cgroups at '%s'", group->unified.mountPoint); + + if (virFileMakePath(group->unified.mountPoint) < 0) { + virReportSystemError(errno, _("Unable to create directory %s"), + group->unified.mountPoint); + return -1; + } + + if (virAsprintf(&opts, "mode=3D755,size=3D65536%s", mountopts) < 0) + return -1; + + if (virAsprintf(&src, "%s%s", oldroot, group->unified.mountPoint) < 0) + return -1; + + if (mount(src, group->unified.mountPoint, "none", MS_BIND, NULL) < 0) { + virReportSystemError(errno, _("Failed to bind cgroup '%s' on '%s'"= ), + src, group->unified.mountPoint); + return -1; + } + + return 0; +} + + virCgroupBackend virCgroupV2Backend =3D { .type =3D VIR_CGROUP_BACKEND_TYPE_V2, =20 @@ -481,6 +514,7 @@ virCgroupBackend virCgroupV2Backend =3D { .remove =3D virCgroupV2Remove, .addTask =3D virCgroupV2AddTask, .hasEmptyTasks =3D virCgroupV2HasEmptyTasks, + .bindMount =3D virCgroupV2BindMount, }; =20 =20 --=20 2.17.1 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list