xen/blkback: add accessor for xenbus backend device
Since backend_info is hidden away now.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
diff --git a/drivers/xen/blkback/common.h b/drivers/xen/blkback/common.h
index cebcc2b..0f91830 100644
--- a/drivers/xen/blkback/common.h
+++ b/drivers/xen/blkback/common.h
@@ -136,4 +136,6 @@
int blkback_barrier(struct xenbus_transaction xbt,
struct backend_info *be, int state);
+struct xenbus_device *blkback_xenbus(struct backend_info *be);
+
#endif /* __BLKIF__BACKEND__COMMON_H__ */
diff --git a/drivers/xen/blkback/vbd.c b/drivers/xen/blkback/vbd.c
index 0635c54..943ec23 100644
--- a/drivers/xen/blkback/vbd.c
+++ b/drivers/xen/blkback/vbd.c
@@ -123,7 +123,7 @@
struct vbd *vbd = &blkif->vbd;
struct xenbus_transaction xbt;
int err;
- struct xenbus_device *dev = blkif->be->dev;
+ struct xenbus_device *dev = blkback_xenbus(blkif->be);
unsigned long long new_size = vbd_size(vbd);
printk(KERN_INFO "VBD Resize: new size %Lu\n", new_size);
diff --git a/drivers/xen/blkback/xenbus.c b/drivers/xen/blkback/xenbus.c
index 34f8e40..c31e5c4 100644
--- a/drivers/xen/blkback/xenbus.c
+++ b/drivers/xen/blkback/xenbus.c
@@ -42,6 +42,11 @@
static void backend_changed(struct xenbus_watch *, const char **,
unsigned int);
+struct xenbus_device *blkback_xenbus(struct backend_info *be)
+{
+ return be->dev;
+}
+
static int blkback_name(blkif_t *blkif, char *buf)
{
char *devpath, *devname;