[PATCH 07/13] block: Don't use subtree drains in bdrv_drop_intermediate()

[Kevin Wolf <kwolf@redhat.com>]

Instead of using a subtree drain from the top node (which also drains
child nodes of base that we're not even interested in), use a normal
drain for base, which automatically drains all of the parents, too.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 block.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/block.c b/block.c
index 5828b970e4..2f6b25875f 100644
--- a/block.c
+++ b/block.c
@@ -5581,7 +5581,7 @@ int bdrv_drop_intermediate(BlockDriverState *top, BlockDriverState *base,
     GLOBAL_STATE_CODE();
 
     bdrv_ref(top);
-    bdrv_subtree_drained_begin(top);
+    bdrv_drained_begin(base);
 
     if (!top->drv || !base->drv) {
         goto exit;
@@ -5654,7 +5654,7 @@ int bdrv_drop_intermediate(BlockDriverState *top, BlockDriverState *base,
 
     ret = 0;
 exit:
-    bdrv_subtree_drained_end(top);
+    bdrv_drained_end(base);
     bdrv_unref(top);
     return ret;
 }
-- 
2.38.1