commit 9a71b9de3f08941577a9760021f52771aaba4fa4
author Max Reitz <mreitz@redhat.com> Wed Jun 12 17:47:37 2019 +0200
committer Kevin Wolf <kwolf@redhat.com> Mon Sep 07 12:31:31 2020 +0200
tree 2af597e3b47d920f60c609b9c0ae45da2baf005e
parent 2b088c60bbe59e4f48fede97263bb293bd38e43e

commit: Deal with filters

This includes some permission limiting (for example, we only need to
take the RESIZE permission if the base is smaller than the top).

Signed-off-by: Max Reitz <mreitz@redhat.com>

blockdev.c

diff --git a/blockdev.c b/blockdev.c
index d53e39c..f308adc 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -2703,7 +2703,9 @@
 
     assert(bdrv_get_aio_context(base_bs) == aio_context);
 
-    for (iter = top_bs; iter != backing_bs(base_bs); iter = backing_bs(iter)) {
+    for (iter = top_bs; iter != bdrv_filter_or_cow_bs(base_bs);
+         iter = bdrv_filter_or_cow_bs(iter))
+    {
         if (bdrv_op_is_blocked(iter, BLOCK_OP_TYPE_COMMIT_TARGET, errp)) {
             goto out;
         }