[Xen-changelog] [xen-unstable] libxl: create xenstore backend for empty disks

[Xen patchbot-unstable <patchbot@xxxxxxx>]

# HG changeset patch
# User Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
# Date 1297972197 0
# Node ID fd61708757180a05a4690764732e7be55bcc6772
# Parent  0e52f58dead5f54d62e124ad1c2e84ca567af663
libxl: create xenstore backend for empty disks

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>
Committed-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
---
 tools/libxl/libxl.c |    4 +---
 1 files changed, 1 insertion(+), 3 deletions(-)

diff -r 0e52f58dead5 -r fd6170875718 tools/libxl/libxl.c
--- a/tools/libxl/libxl.c       Thu Feb 17 19:49:00 2011 +0000
+++ b/tools/libxl/libxl.c       Thu Feb 17 19:49:57 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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