libcacard: make unnesting rules available to Makefile.objs

[qemu.git] / block / qcow.c

diff --git a/block/qcow.c b/block/qcow.c
index 7b5ab87d2d05ae4e9e370f97d161684257688622..b239c82ae07f2816aa9d603858ef4bc2f287612a 100644 (file)
--- a/block/qcow.c
+++ b/block/qcow.c
@@ -197,6 +197,15 @@ static int qcow_open(BlockDriverState *bs, int flags)
     return ret;
 }
 
+
+/* We have nothing to do for QCOW reopen, stubs just return
+ * success */
+static int qcow_reopen_prepare(BDRVReopenState *state,
+                               BlockReopenQueue *queue, Error **errp)
+{
+    return 0;
+}
+
 static int qcow_set_key(BlockDriverState *bs, const char *key)
 {
     BDRVQcowState *s = bs->opaque;
@@ -868,6 +877,7 @@ static BlockDriver bdrv_qcow = {
     .bdrv_probe                = qcow_probe,
     .bdrv_open         = qcow_open,
     .bdrv_close                = qcow_close,
+    .bdrv_reopen_prepare = qcow_reopen_prepare,
     .bdrv_create       = qcow_create,
 
     .bdrv_co_readv          = qcow_co_readv,