From 56a605626d81ee27ad220f3f949990cc46fca061 Mon Sep 17 00:00:00 2001
Message-Id: <56a605626d81ee27ad220f3f949990cc46fca061@dist-git>
From: Peter Krempa <pkrempa@redhat.com>
Date: Mon, 16 Mar 2020 22:12:15 +0100
Subject: [PATCH] qemu: monitor: Add handler for blockdev-reopen
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Introduce the monitor code for using blockdev-reopen.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
(cherry picked from commit 9f436e067df2e4465228c8ba536dcf9f9445aabc)

https://bugzilla.redhat.com/show_bug.cgi?id=1799013
Message-Id: <e74e172e1c5e73fcaeafb7fb3a09414a2fcbe9ad.1584391727.git.pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
---
 src/qemu/qemu_monitor.c      | 13 +++++++++++++
 src/qemu/qemu_monitor.h      |  3 +++
 src/qemu/qemu_monitor_json.c | 21 +++++++++++++++++++++
 src/qemu/qemu_monitor_json.h |  4 ++++
 4 files changed, 41 insertions(+)

diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index e3ee48613a..c4202d59af 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -4407,6 +4407,19 @@ qemuMonitorBlockdevAdd(qemuMonitorPtr mon,
 }
 
 
+int
+qemuMonitorBlockdevReopen(qemuMonitorPtr mon,
+                          virJSONValuePtr *props)
+{
+    VIR_DEBUG("props=%p (node-name=%s)", *props,
+              NULLSTR(virJSONValueObjectGetString(*props, "node-name")));
+
+    QEMU_CHECK_MONITOR(mon);
+
+    return qemuMonitorJSONBlockdevReopen(mon, props);
+}
+
+
 int
 qemuMonitorBlockdevDel(qemuMonitorPtr mon,
                        const char *nodename)
diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h
index 6a6b8efaee..481fc8e12e 100644
--- a/src/qemu/qemu_monitor.h
+++ b/src/qemu/qemu_monitor.h
@@ -1325,6 +1325,9 @@ int qemuMonitorBlockdevCreate(qemuMonitorPtr mon,
 int qemuMonitorBlockdevAdd(qemuMonitorPtr mon,
                            virJSONValuePtr *props);
 
+int qemuMonitorBlockdevReopen(qemuMonitorPtr mon,
+                              virJSONValuePtr *props);
+
 int qemuMonitorBlockdevDel(qemuMonitorPtr mon,
                            const char *nodename);
 
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index 3827574ef6..0122b77259 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -8830,6 +8830,27 @@ qemuMonitorJSONBlockdevAdd(qemuMonitorPtr mon,
 }
 
 
+int
+qemuMonitorJSONBlockdevReopen(qemuMonitorPtr mon,
+                              virJSONValuePtr *props)
+{
+    g_autoptr(virJSONValue) cmd = NULL;
+    g_autoptr(virJSONValue) reply = NULL;
+    virJSONValuePtr pr = g_steal_pointer(props);
+
+    if (!(cmd = qemuMonitorJSONMakeCommandInternal("blockdev-reopen", pr)))
+        return -1;
+
+    if (qemuMonitorJSONCommand(mon, cmd, &reply) < 0)
+        return -1;
+
+    if (qemuMonitorJSONCheckError(cmd, reply) < 0)
+        return -1;
+
+    return 0;
+}
+
+
 int
 qemuMonitorJSONBlockdevDel(qemuMonitorPtr mon,
                            const char *nodename)
diff --git a/src/qemu/qemu_monitor_json.h b/src/qemu/qemu_monitor_json.h
index fd2e09025e..801babef97 100644
--- a/src/qemu/qemu_monitor_json.h
+++ b/src/qemu/qemu_monitor_json.h
@@ -600,6 +600,10 @@ int qemuMonitorJSONBlockdevAdd(qemuMonitorPtr mon,
                                virJSONValuePtr *props)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
 
+int qemuMonitorJSONBlockdevReopen(qemuMonitorPtr mon,
+                                  virJSONValuePtr *props)
+    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
+
 int qemuMonitorJSONBlockdevDel(qemuMonitorPtr mon,
                                const char *nodename)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
-- 
2.25.1