commit 79a292e5ec767eea27a0cc456570ee028f4e3972
author Kevin Wolf <kwolf@redhat.com> Fri Feb 03 16:21:58 2023 +0100
committer Kevin Wolf <kwolf@redhat.com> Thu Feb 23 19:49:26 2023 +0100
tree 22f03a4c1f1cdc65a8cbde01222126ae8f3de82e
parent c73ff92c9d00f9aa535044e7348d0330aa94f467

block: Mark bdrv_co_eject/lock_medium() and callers GRAPH_RDLOCK

This adds GRAPH_RDLOCK annotations to declare that callers of
bdrv_co_eject() and bdrv_co_lock_medium() need to hold a reader lock for
the graph.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230203152202.49054-20-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

block.c

diff --git a/block.c b/block.c
index 738b420..1060194 100644
--- a/block.c
+++ b/block.c
@@ -6849,6 +6849,7 @@
 {
     BlockDriver *drv = bs->drv;
     IO_CODE();
+    assert_bdrv_graph_readable();
 
     if (drv && drv->bdrv_co_eject) {
         drv->bdrv_co_eject(bs, eject_flag);
@@ -6863,6 +6864,7 @@
 {
     BlockDriver *drv = bs->drv;
     IO_CODE();
+    assert_bdrv_graph_readable();
     trace_bdrv_lock_medium(bs, locked);
 
     if (drv && drv->bdrv_co_lock_medium) {