blktap: make debugging messages a little more meaningful

Signed-off-by: Jan Beulich <jbeulich@novell.com>

diff --git a/drivers/xen/blktap/xenbus.c b/drivers/xen/blktap/xenbus.c
index 86965d896c46804184fbecf12828144bb5444f57..e0df8954557b6e700fabf4d0de3774205d193b45 100644 (file)
--- a/drivers/xen/blktap/xenbus.c
+++ b/drivers/xen/blktap/xenbus.c
@@ -241,8 +241,11 @@ static void tap_update_blkif_status(blkif_t *blkif)
                err = PTR_ERR(blkif->xenblkd);
                blkif->xenblkd = NULL;
                xenbus_dev_fatal(blkif->be->dev, err, "start xenblkd");
-               WPRINTK("Error starting thread\n");
-       }
+               WPRINTK("Error starting thread %s\n", name);
+       } else
+               DPRINTK("Thread started for domid %d, connected disk %d\n",
+                       blkif->domid, blkif->dev_num);
+
 }
 
 /**
@@ -332,8 +335,6 @@ static void tap_backend_changed(struct xenbus_watch *watch,
        /* Associate tap dev with domid*/
        be->blkif->dev_num = dom_to_devid(be->blkif->domid, be->xenbus_id, 
                                          be->blkif);
-       DPRINTK("Thread started for domid [%d], connecting disk\n", 
-               be->blkif->dev_num);
 
        tap_update_blkif_status(be->blkif);
 }
@@ -347,7 +348,7 @@ static void tap_frontend_changed(struct xenbus_device *dev,
        struct backend_info *be = dev->dev.driver_data;
        int err;
 
-       DPRINTK("\n");
+       DPRINTK("fe_changed(%s,%d)\n", dev->nodename, frontend_state);
 
        switch (frontend_state) {
        case XenbusStateInitialising: