commit 0050c163ff6d8167e07c9fc4be7f728316140cb6
author Kevin Wolf <kwolf@redhat.com> Thu May 04 13:57:31 2023 +0200
committer Kevin Wolf <kwolf@redhat.com> Wed May 10 14:16:53 2023 +0200
tree 142b9df901980625171517d9a024676fa61edf31
parent 6dab4c93ecfae48e2e67b984d1032c1e988d3005

qcow2: Don't call bdrv_getlength() in coroutine_fns

There is a bdrv_co_getlength() now, which should be used in coroutine
context.

This requires adding GRAPH_RDLOCK to some functions so that this still
compiles with TSA because bdrv_co_getlength() is GRAPH_RDLOCK.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230504115750.54437-2-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

block/qcow2-refcount.c

diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
index b2a81ff..4cf91bd 100644
--- a/block/qcow2-refcount.c
+++ b/block/qcow2-refcount.c
@@ -3715,7 +3715,7 @@
 
     qemu_co_mutex_assert_locked(&s->lock);
 
-    file_length = bdrv_getlength(bs->file->bs);
+    file_length = bdrv_co_getlength(bs->file->bs);
     if (file_length < 0) {
         return file_length;
     }