qemu: monitor: Add new fields for 'blockdev-mirror' command

Allow using the delayed dismiss of the job so that we can reap the state
even if libvirtd was not running when qemu emitted the job completion
event.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

src/qemu/qemu_migration.c

@@ -840,7 +840,7 @@ qemuMigrationSrcNBDStorageCopyBlockdev(virQEMUDriverPtr driver,
     mon_ret = qemuBlockStorageSourceAttachApply(qemuDomainGetMonitor(vm), data);
 
     if (mon_ret == 0)
-        mon_ret = qemuMonitorBlockdevMirror(qemuDomainGetMonitor(vm), NULL,
+        mon_ret = qemuMonitorBlockdevMirror(qemuDomainGetMonitor(vm), NULL, false,
                                             diskAlias, copysrc->nodeformat,
                                             mirror_speed, 0, 0, mirror_shallow);
 

src/qemu/qemu_monitor.c

@@ -3224,6 +3224,7 @@ qemuMonitorDriveMirror(qemuMonitorPtr mon,
 int
 qemuMonitorBlockdevMirror(qemuMonitorPtr mon,
                           const char *jobname,
+                          bool persistjob,
                           const char *device,
                           const char *target,
                           unsigned long long bandwidth,
@@ -3231,15 +3232,15 @@ qemuMonitorBlockdevMirror(qemuMonitorPtr mon,
                           unsigned long long buf_size,
                           bool shallow)
 {
-    VIR_DEBUG("jobname=%s, device=%s, target=%s, bandwidth=%lld, "
+    VIR_DEBUG("jobname=%s, persistjob=%d, device=%s, target=%s, bandwidth=%lld, "
               "granularity=%#x, buf_size=%lld, shallow=%d",
-              NULLSTR(jobname), device, target, bandwidth, granularity,
+              NULLSTR(jobname), persistjob, device, target, bandwidth, granularity,
               buf_size, shallow);
 
     QEMU_CHECK_MONITOR(mon);
 
-    return qemuMonitorJSONBlockdevMirror(mon, jobname, device, target, bandwidth,
-                                         granularity, buf_size, shallow);
+    return qemuMonitorJSONBlockdevMirror(mon, jobname, persistjob, device, target,
+                                         bandwidth, granularity, buf_size, shallow);
 }
 
 

src/qemu/qemu_monitor.h

@@ -905,13 +905,14 @@ int qemuMonitorDriveMirror(qemuMonitorPtr mon,
     ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3);
 int qemuMonitorBlockdevMirror(qemuMonitorPtr mon,
                               const char *jobname,
+                              bool persistjob,
                               const char *device,
                               const char *target,
                               unsigned long long bandwidth,
                               unsigned int granularity,
                               unsigned long long buf_size,
                               bool shallow)
-    ATTRIBUTE_NONNULL(3) ATTRIBUTE_NONNULL(4);
+    ATTRIBUTE_NONNULL(4) ATTRIBUTE_NONNULL(5);
 int qemuMonitorDrivePivot(qemuMonitorPtr mon,
                           const char *jobname)
     ATTRIBUTE_NONNULL(2);

src/qemu/qemu_monitor_json.c

@@ -4415,6 +4415,7 @@ qemuMonitorJSONDriveMirror(qemuMonitorPtr mon,
 int
 qemuMonitorJSONBlockdevMirror(qemuMonitorPtr mon,
                               const char *jobname,
+                              bool persistjob,
                               const char *device,
                               const char *target,
                               unsigned long long speed,
@@ -4424,6 +4425,13 @@ qemuMonitorJSONBlockdevMirror(qemuMonitorPtr mon,
 {
     VIR_AUTOPTR(virJSONValue) cmd = NULL;
     VIR_AUTOPTR(virJSONValue) reply = NULL;
+    virTristateBool autofinalize = VIR_TRISTATE_BOOL_ABSENT;
+    virTristateBool autodismiss = VIR_TRISTATE_BOOL_ABSENT;
+
+    if (persistjob) {
+        autofinalize = VIR_TRISTATE_BOOL_YES;
+        autodismiss = VIR_TRISTATE_BOOL_NO;
+    }
 
     cmd = qemuMonitorJSONMakeCommand("blockdev-mirror",
                                      "S:job-id", jobname,
@@ -4433,6 +4441,8 @@ qemuMonitorJSONBlockdevMirror(qemuMonitorPtr mon,
                                      "z:granularity", granularity,
                                      "P:buf-size", buf_size,
                                      "s:sync", shallow ? "top" : "full",
+                                     "T:auto-finalize", autofinalize,
+                                     "T:auto-dismiss", autodismiss,
                                      NULL);
     if (!cmd)
         return -1;

src/qemu/qemu_monitor_json.h

@@ -254,13 +254,14 @@ int qemuMonitorJSONDriveMirror(qemuMonitorPtr mon,
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3);
 int qemuMonitorJSONBlockdevMirror(qemuMonitorPtr mon,
                                   const char *jobname,
+                                  bool persistjob,
                                   const char *device,
                                   const char *target,
                                   unsigned long long speed,
                                   unsigned int granularity,
                                   unsigned long long buf_size,
                                   bool shallow)
-    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(3) ATTRIBUTE_NONNULL(4);
+    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(4) ATTRIBUTE_NONNULL(5);
 int qemuMonitorJSONDrivePivot(qemuMonitorPtr mon,
                               const char *jobname)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);

tests/qemumonitorjsontest.c

@@ -1325,7 +1325,7 @@ GEN_TEST_FUNC(qemuMonitorJSONRemoveNetdev, "net0")
 GEN_TEST_FUNC(qemuMonitorJSONDelDevice, "ide0")
 GEN_TEST_FUNC(qemuMonitorJSONAddDevice, "some_dummy_devicestr")
 GEN_TEST_FUNC(qemuMonitorJSONDriveMirror, "vdb", "/foo/bar", "formatstr", 1024, 1234, 31234, true, true)
-GEN_TEST_FUNC(qemuMonitorJSONBlockdevMirror, "jobname", "vdb", "targetnode", 1024, 1234, 31234, true)
+GEN_TEST_FUNC(qemuMonitorJSONBlockdevMirror, "jobname", true, "vdb", "targetnode", 1024, 1234, 31234, true)
 GEN_TEST_FUNC(qemuMonitorJSONBlockStream, "vdb", "jobname", true, "/foo/bar1", "backingnode", "backingfilename", 1024)
 GEN_TEST_FUNC(qemuMonitorJSONBlockCommit, "vdb", "jobname", true, "/foo/bar1", "topnode", "/foo/bar2", "basenode", "backingfilename", 1024)
 GEN_TEST_FUNC(qemuMonitorJSONDrivePivot, "vdb")