assertions for block global state API

All the global state (GS) API functions will check that
qemu_in_main_thread() returns true. If not, it means
that the safety of BQL cannot be guaranteed, and
they need to be moved to I/O.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-5-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/blockdev.c b/blockdev.c
index 42e098b..d601ae5 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -658,6 +658,7 @@ void blockdev_close_all_bdrv_states(void)
 /* Iterates over the list of monitor-owned BlockDriverStates */
 BlockDriverState *bdrv_next_monitor_owned(BlockDriverState *bs)
 {
+    GLOBAL_STATE_CODE();
     return bs ? QTAILQ_NEXT(bs, monitor_list)
               : QTAILQ_FIRST(&monitor_bdrv_states);
 }