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From 40a3ab5f35bb847ae210160b5bcb2b3ab8990e5a Mon Sep 17 00:00:00 2001
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Message-Id: <40a3ab5f35bb847ae210160b5bcb2b3ab8990e5a@dist-git>
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From: Pavel Hrdina <phrdina@redhat.com>
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Date: Mon, 1 Jul 2019 17:07:28 +0200
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Subject: [PATCH] vircgroup: introduce virCgroupV2HasEmptyTasks
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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 38411bb831a8c5086145b9781168349bc64fbc25)
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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: <36bb2bd62faa6528de46da822d026f67be9f6d16.1561993100.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 | 17 +++++++++++++++++
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1 file changed, 17 insertions(+)
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diff --git a/src/util/vircgroupv2.c b/src/util/vircgroupv2.c
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index 6ffb5ce786..074e6ec110 100644
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--- a/src/util/vircgroupv2.c
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+++ b/src/util/vircgroupv2.c
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@@ -446,6 +446,22 @@ virCgroupV2AddTask(virCgroupPtr group,
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}
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+static int
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+virCgroupV2HasEmptyTasks(virCgroupPtr cgroup,
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+ int controller)
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+{
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+ int ret = -1;
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+ VIR_AUTOFREE(char *) content = NULL;
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+
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+ ret = virCgroupGetValueStr(cgroup, controller, "cgroup.procs", &content);
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+
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+ if (ret == 0 && content[0] == '\0')
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+ ret = 1;
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+
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+ return ret;
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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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@@ -464,6 +480,7 @@ virCgroupBackend virCgroupV2Backend = {
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.makeGroup = virCgroupV2MakeGroup,
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.remove = virCgroupV2Remove,
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.addTask = virCgroupV2AddTask,
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+ .hasEmptyTasks = virCgroupV2HasEmptyTasks,
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};
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--
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2.22.0
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