[Xen-devel] [PATCH] libxl: do not try to use blktap with qdisk

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

libxl_device_disk_add tries to use blktap when available even for qdisk
devices, this patch fixes it.
This patch should be applied to xen 4.1.

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

diff -r 6fa299ad15c8 tools/libxl/libxl.c
--- a/tools/libxl/libxl.c       Wed Mar 09 17:25:44 2011 +0000
+++ b/tools/libxl/libxl.c       Thu Mar 10 18:36:22 2011 +0000
@@ -966,7 +966,6 @@ int libxl_device_disk_add(libxl_ctx *ctx
             device.backend_kind = DEVICE_VBD;
             break;
         case DISK_BACKEND_TAP:
-        case DISK_BACKEND_QDISK: 
             if (libxl__blktap_enabled(&gc) && disk->format != 
DISK_FORMAT_EMPTY) {
                 const char *dev = libxl__blktap_devpath(&gc,
                                                disk->pdev_path, disk->format);
@@ -988,6 +987,7 @@ int libxl_device_disk_add(libxl_ctx *ctx
 
                 break;
             }
+        case DISK_BACKEND_QDISK: 
             flexarray_append(back, "params");
             flexarray_append(back, libxl__sprintf(&gc, "%s:%s",
                           libxl__device_disk_string_of_format(disk->format), 
disk->pdev_path));

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