sys: POSIX rename improvements

src/sys/file.c

@@ -1342,7 +1342,7 @@ NTSTATUS FspFileNodeRenameCheck(PDEVICE_OBJECT FsvolDeviceObject, PIRP OplockIrp
      * "rename" resource exclusively, which disallows new Opens.
      */
 
-    if (!PosixRename && !CheckingOldName)
+    if (!CheckingOldName)
     {
         /* replaced file cannot be a directory or mapped as an image */
         for (

src/sys/fileinfo.c

@@ -1691,6 +1691,12 @@ retry:
     FspFsvolDeviceFileRenameAcquireExclusive(FsvolDeviceObject);
     FspFileNodeAcquireExclusive(FileNode, Full);
 
+    if (FileNode->PosixDelete)
+    {
+        Result = STATUS_ACCESS_DENIED;
+        goto unlock_exit;
+    }
+
     if (0 == Request)
     {
         if (0 != TargetFileNode)