diff --git a/block.c b/block.c
index 79a5a27..8fc7b56 100644
--- a/block.c
+++ b/block.c
@@ -4365,6 +4365,7 @@
     bdrv_ref(from);
 
     assert(qemu_get_current_aio_context() == qemu_get_aio_context());
+    assert(bdrv_get_aio_context(from) == bdrv_get_aio_context(to));
     bdrv_drained_begin(from);
 
     /* Put all parents into @list and calculate their cumulative permissions */
diff --git a/blockdev.c b/blockdev.c
index ea89896..fa8630c 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1470,9 +1470,7 @@
                              DO_UPCAST(ExternalSnapshotState, common, common);
     TransactionAction *action = common->action;
     AioContext *aio_context;
-    AioContext *old_context;
     uint64_t perm, shared;
-    int ret;
 
     /* 'blockdev-snapshot' and 'blockdev-snapshot-sync' have similar
      * purpose but a different set of parameters */
@@ -1608,20 +1606,6 @@
         goto out;
     }
 
-    /* Honor bdrv_try_set_aio_context() context acquisition requirements. */
-    old_context = bdrv_get_aio_context(state->new_bs);
-    aio_context_release(aio_context);
-    aio_context_acquire(old_context);
-
-    ret = bdrv_try_set_aio_context(state->new_bs, aio_context, errp);
-
-    aio_context_release(old_context);
-    aio_context_acquire(aio_context);
-
-    if (ret < 0) {
-        goto out;
-    }
-
     /* This removes our old bs and adds the new bs. This is an operation that
      * can fail, so we need to do it in .prepare; undoing it for abort is
      * always possible. */