<fix>[snapshot]: fix UndoSnapshotCreation error on sblk

1.deactive snapshot lv on other host before committing volume.
2.do not resize qcow2, only resize snapshot lv before committing volume.

Resolves/Related: ZSTAC-77942

Change-Id: I767861677267636b677578636267746c62777479

Author: shan.wu

plugin/kvm/src/main/java/org/zstack/kvm/KVMAgentCommands.java

@@ -4008,6 +4008,15 @@ public static class BlockCommitVolumeCmd extends AgentCommand implements HasThre
         private String top;
         @GrayVersion(value = "5.0.0")
         private String base;
+        private Boolean live;
+
+        public Boolean getLive() {
+            return live;
+        }
+
+        public void setLive(Boolean live) {
+            this.live = live;
+        }
 
         public String getVmUuid() {
             return vmUuid;

plugin/kvm/src/main/java/org/zstack/kvm/KVMHost.java

@@ -1023,6 +1023,8 @@ private void doCommitVolume(final CommitVolumeOnHypervisorMsg msg, final NoError
             if (state != VmInstanceState.Running && state != VmInstanceState.Stopped && state != VmInstanceState.Paused) {
                 throw new OperationFailureException(operr("vm[uuid:%s] is not Running or Stopped, current state[%s]", msg.getVmUuid(), state));
             }
+
+            cmd.setLive(state == VmInstanceState.Running || state == VmInstanceState.Paused);
         }
 
         cmd.setVmUuid(msg.getVmUuid());