LXC: Set default driver for image backed filesystems

If no explicit driver is set for an image backed filesystem,
set it to use the loop driver (if raw) or nbd driver (if
non-raw)

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

diff --git a/src/lxc/lxc_controller.c b/src/lxc/lxc_controller.c
index 1d91422ce4474ee32b0c81674693815be7a640d9..41d69b321f7b44eb5cf28aef800f0341efaab037 100644 (file)
--- a/src/lxc/lxc_controller.c
+++ b/src/lxc/lxc_controller.c
@@ -462,6 +462,14 @@ static int virLXCControllerSetupLoopDevices(virLXCControllerPtr ctrl)
         if (fs->type != VIR_DOMAIN_FS_TYPE_FILE)
             continue;
 
+        if (fs->fsdriver == VIR_DOMAIN_FS_DRIVER_TYPE_DEFAULT) {
+            if (fs->format == VIR_STORAGE_FILE_RAW ||
+                fs->format == VIR_STORAGE_FILE_NONE)
+                fs->fsdriver = VIR_DOMAIN_FS_DRIVER_TYPE_LOOP;
+            else
+                fs->fsdriver = VIR_DOMAIN_FS_DRIVER_TYPE_NBD;
+        }
+
         if (fs->fsdriver == VIR_DOMAIN_FS_DRIVER_TYPE_LOOP) {
             if (fs->format != VIR_STORAGE_FILE_RAW &&
                 fs->format != VIR_STORAGE_FILE_NONE) {