block: Mark bdrv_co_get_allocated_file_size() and callers GRAPH_RDLOCK
This adds GRAPH_RDLOCK annotations to declare that callers of
bdrv_co_get_allocated_file_size() 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>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20230504115750.54437-14-kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
diff --git a/block.c b/block.c
index abec940..3ccb935 100644
--- a/block.c
+++ b/block.c
@@ -5750,7 +5750,8 @@
* sums the size of all data-bearing children. (This excludes backing
* children.)
*/
-static int64_t coroutine_fn bdrv_sum_allocated_file_size(BlockDriverState *bs)
+static int64_t coroutine_fn GRAPH_RDLOCK
+bdrv_sum_allocated_file_size(BlockDriverState *bs)
{
BdrvChild *child;
int64_t child_size, sum = 0;
@@ -5778,6 +5779,7 @@
{
BlockDriver *drv = bs->drv;
IO_CODE();
+ assert_bdrv_graph_readable();
if (!drv) {
return -ENOMEDIUM;