libvirt/SOURCES/libvirt-vircgroup-extract-v...

114 lines
3.2 KiB
Diff

From 272c540c20234508b31dcb9a7c3b548e2e328656 Mon Sep 17 00:00:00 2001
Message-Id: <272c540c20234508b31dcb9a7c3b548e2e328656@dist-git>
From: Pavel Hrdina <phrdina@redhat.com>
Date: Mon, 1 Jul 2019 17:06:38 +0200
Subject: [PATCH] vircgroup: extract virCgroupV1HasEmptyTasks
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
(cherry picked from commit c4047141a0af36c5d428bfcc1f14d012f8352a11)
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1689297
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Message-Id: <e81675457cc7dd357792080ff07d5e1159b88738.1561993100.git.phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
---
src/util/vircgroup.c | 13 +------------
src/util/vircgroupbackend.h | 5 +++++
src/util/vircgroupv1.c | 20 ++++++++++++++++++++
3 files changed, 26 insertions(+), 12 deletions(-)
diff --git a/src/util/vircgroup.c b/src/util/vircgroup.c
index a5076cb554..d4d02d8f5b 100644
--- a/src/util/vircgroup.c
+++ b/src/util/vircgroup.c
@@ -3465,18 +3465,7 @@ virCgroupSupportsCpuBW(virCgroupPtr cgroup)
int
virCgroupHasEmptyTasks(virCgroupPtr cgroup, int controller)
{
- int ret = -1;
- VIR_AUTOFREE(char *) content = NULL;
-
- if (!cgroup)
- return -1;
-
- ret = virCgroupGetValueStr(cgroup, controller, "tasks", &content);
-
- if (ret == 0 && content[0] == '\0')
- ret = 1;
-
- return ret;
+ return cgroup->backend->hasEmptyTasks(cgroup, controller);
}
bool
diff --git a/src/util/vircgroupbackend.h b/src/util/vircgroupbackend.h
index bff1f8938e..3e0f6d01f4 100644
--- a/src/util/vircgroupbackend.h
+++ b/src/util/vircgroupbackend.h
@@ -122,6 +122,10 @@ typedef int
pid_t pid,
unsigned int flags);
+typedef int
+(*virCgroupHasEmptyTasksCB)(virCgroupPtr cgroup,
+ int controller);
+
struct _virCgroupBackend {
virCgroupBackendType type;
@@ -141,6 +145,7 @@ struct _virCgroupBackend {
virCgroupMakeGroupCB makeGroup;
virCgroupRemoveCB remove;
virCgroupAddTaskCB addTask;
+ virCgroupHasEmptyTasksCB hasEmptyTasks;
};
typedef struct _virCgroupBackend virCgroupBackend;
typedef virCgroupBackend *virCgroupBackendPtr;
diff --git a/src/util/vircgroupv1.c b/src/util/vircgroupv1.c
index fda2c43eef..b057cdfd9e 100644
--- a/src/util/vircgroupv1.c
+++ b/src/util/vircgroupv1.c
@@ -736,6 +736,25 @@ virCgroupV1AddTask(virCgroupPtr group,
}
+static int
+virCgroupV1HasEmptyTasks(virCgroupPtr cgroup,
+ int controller)
+{
+ int ret = -1;
+ VIR_AUTOFREE(char *) content = NULL;
+
+ if (!cgroup)
+ return -1;
+
+ ret = virCgroupGetValueStr(cgroup, controller, "tasks", &content);
+
+ if (ret == 0 && content[0] == '\0')
+ ret = 1;
+
+ return ret;
+}
+
+
virCgroupBackend virCgroupV1Backend = {
.type = VIR_CGROUP_BACKEND_TYPE_V1,
@@ -754,6 +773,7 @@ virCgroupBackend virCgroupV1Backend = {
.makeGroup = virCgroupV1MakeGroup,
.remove = virCgroupV1Remove,
.addTask = virCgroupV1AddTask,
+ .hasEmptyTasks = virCgroupV1HasEmptyTasks,
};
--
2.22.0