[Xen-devel] [PATCH] libxl: create xenstore backend for empty disks

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

We still need to create the vbd backend in xenstore even if the disk
format is DISK_FORMAT_EMPTY.

Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>

diff -r d90cbea3df03 tools/libxl/libxl.c
--- a/tools/libxl/libxl.c       Wed Feb 16 19:49:14 2011 +0000
+++ b/tools/libxl/libxl.c       Wed Feb 16 20:51:07 2011 +0000
@@ -953,9 +953,7 @@ int libxl_device_disk_add(libxl_ctx *ctx
             break;
         case DISK_BACKEND_TAP:
         case DISK_BACKEND_QDISK: 
-            if (disk->format == DISK_FORMAT_EMPTY)
-                break;
-            if (libxl__blktap_enabled(&gc)) {
+            if (libxl__blktap_enabled(&gc) && disk->format != 
DISK_FORMAT_EMPTY) {
                 const char *dev = libxl__blktap_devpath(&gc,
                                                disk->pdev_path, disk->format);
                 if (!dev) {

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