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From 6fc9abce93fb193d748c45dbe47920b287c9aa07 Mon Sep 17 00:00:00 2001
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Message-Id: <6fc9abce93fb193d748c45dbe47920b287c9aa07@dist-git>
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From: Pavel Hrdina <phrdina@redhat.com>
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Date: Mon, 1 Jul 2019 17:07:23 +0200
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Subject: [PATCH] vircgroup: introduce virCgroupV2GetAnyController
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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 171c700cd8c5509dc868c00faed9a16feaa2339d)
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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: <2bc9d83fa5195d1650a8801c69b850ff86fd8386.1561993100.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 | 9 +++++++++
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 1 file changed, 9 insertions(+)
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diff --git a/src/util/vircgroupv2.c b/src/util/vircgroupv2.c
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index babce95aeb..65cbad533b 100644
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--- a/src/util/vircgroupv2.c
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+++ b/src/util/vircgroupv2.c
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@@ -307,6 +307,14 @@ virCgroupV2HasController(virCgroupPtr group,
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 }
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+static int
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+virCgroupV2GetAnyController(virCgroupPtr group)
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+{
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+    /* The least significant bit is position 1. */
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+    return ffs(group->unified.controllers) - 1;
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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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@@ -320,6 +328,7 @@ virCgroupBackend virCgroupV2Backend = {
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     .stealPlacement = virCgroupV2StealPlacement,
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     .detectControllers = virCgroupV2DetectControllers,
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     .hasController = virCgroupV2HasController,
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+    .getAnyController = virCgroupV2GetAnyController,
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 };
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-- 
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2.22.0
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