rbd: drop a useless local variable

In rbd_req_sync_notify_ack(), a local variable was needlessly being
used to hold a null pointer.  Just pass NULL instead.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Yehuda Sadeh <yehuda@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 8f428a8ab003..2ae3bb0c0a34 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -1187,7 +1187,6 @@ static int rbd_req_sync_notify_ack(struct rbd_device *dev,
                                    const char *obj)
 {
         struct ceph_osd_req_op *ops;
-        struct page **pages = NULL;
         int ret;
 
         ret = rbd_create_rw_ops(&ops, 1, CEPH_OSD_OP_NOTIFY_ACK, 0);
@@ -1200,7 +1199,7 @@ static int rbd_req_sync_notify_ack(struct rbd_device *dev,
 
         ret = rbd_do_request(NULL, dev, NULL, CEPH_NOSNAP,
                           obj, 0, 0, NULL,
-                          pages, 0,
+                          NULL, 0,
                           CEPH_OSD_FLAG_READ,
                           ops,
                           1,