@@ -203,9 +203,9 @@ static int coroutine_fn cbw_co_flush(BlockDriverState *bs)
* It's guaranteed that guest writes will not interact in the region until
* cbw_snapshot_read_unlock() called.
*/
-static BlockReq *cbw_snapshot_read_lock(BlockDriverState *bs,
- int64_t offset, int64_t bytes,
- int64_t *pnum, BdrvChild **file)
+static coroutine_fn BlockReq *cbw_snapshot_read_lock(BlockDriverState *bs,
+ int64_t offset, int64_t bytes,
+ int64_t *pnum, BdrvChild **file)
{
BDRVCopyBeforeWriteState *s = bs->opaque;
BlockReq *req = g_new(BlockReq, 1);
@@ -240,7 +240,7 @@ static BlockReq *cbw_snapshot_read_lock(BlockDriverState *bs,
return req;
}
-static void cbw_snapshot_read_unlock(BlockDriverState *bs, BlockReq *req)
+static coroutine_fn void cbw_snapshot_read_unlock(BlockDriverState *bs, BlockReq *req)
{
BDRVCopyBeforeWriteState *s = bs->opaque;