[PATCH V4 3/6] block/rbd: update s->image_size in qemu_rbd_getlength

[Peter Lieven <pl@kamp.de>]

while at it just call rbd_get_size and avoid rbd_stat.

Signed-off-by: Peter Lieven <pl@kamp.de>
---
 block/rbd.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/block/rbd.c b/block/rbd.c
index b4caea4f1b..1f8dc84079 100644
--- a/block/rbd.c
+++ b/block/rbd.c
@@ -968,15 +968,14 @@ static int qemu_rbd_getinfo(BlockDriverState *bs, BlockDriverInfo *bdi)
 static int64_t qemu_rbd_getlength(BlockDriverState *bs)
 {
     BDRVRBDState *s = bs->opaque;
-    rbd_image_info_t info;
     int r;
 
-    r = rbd_stat(s->image, &info, sizeof(info));
+    r = rbd_get_size(s->image, &s->image_size);
     if (r < 0) {
         return r;
     }
 
-    return info.size;
+    return s->image_size;
 }
 
 static int coroutine_fn qemu_rbd_co_truncate(BlockDriverState *bs,
-- 
2.17.1