[PATCH 4/4] rbd: activate v2 image support

[Alex Elder <elder@inktank.com>]

Now that v2 images support is fully implemented, have
rbd_dev_v2_probe() return 0 to indicate a successful probe.

(Note that an image that implements layering will fail
the probe early because of the feature chekc.)

Signed-off-by: Alex Elder <elder@inktank.com>
---
  drivers/block/rbd.c |    2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 86ab032..6052fff 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -3013,7 +3013,7 @@ static int rbd_dev_v2_probe(struct rbd_device 
*rbd_dev)
  	dout("discovered version 2 image, header name is %s\n",
  		rbd_dev->header_name);

-	return -ENOTSUPP;
+	return 0;
  out_err:
  	kfree(rbd_dev->header_name);
  	rbd_dev->header_name = NULL;
-- 
1.7.9.5