[PATCH V8 13/15] xen-block: Update tracking iothread users with holder name

[Zhang Chen]

Replace raw object_ref/unref calls with iothread_get/put_aio_context.

Signed-off-by: Zhang Chen <zhangc...@gmail.com>
---
 hw/block/dataplane/xen-block.c | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/hw/block/dataplane/xen-block.c b/hw/block/dataplane/xen-block.c
index 48c2e315f3..b5bf8d359f 100644
--- a/hw/block/dataplane/xen-block.c
+++ b/hw/block/dataplane/xen-block.c
@@ -621,9 +621,15 @@ XenBlockDataPlane *xen_block_dataplane_create(XenDevice 
*xendev,
     QLIST_INIT(&dataplane->freelist);
 
     if (iothread) {
+        g_autofree char *path = object_get_canonical_path(OBJECT(xendev));
+        IOThreadHolder io_holder = {
+            .type = IO_THREAD_HOLDER_KIND_QOM_OBJECT,
+            .u.qom_object.qom_path = (char *)path,
+        };
+
         dataplane->iothread = iothread;
-        object_ref(OBJECT(dataplane->iothread));
-        dataplane->ctx = iothread_get_aio_context(dataplane->iothread);
+        dataplane->ctx = iothread_ref_and_get_aio_context(dataplane->iothread,
+                                                          &io_holder);
     } else {
         dataplane->ctx = qemu_get_aio_context();
     }
@@ -652,7 +658,14 @@ void xen_block_dataplane_destroy(XenBlockDataPlane 
*dataplane)
 
     qemu_bh_delete(dataplane->bh);
     if (dataplane->iothread) {
-        object_unref(OBJECT(dataplane->iothread));
+        g_autofree char *path = object_get_canonical_path(
+                                        OBJECT(dataplane->xendev));
+        IOThreadHolder io_holder = {
+            .type = IO_THREAD_HOLDER_KIND_QOM_OBJECT,
+            .u.qom_object.qom_path = (char *)path,
+        };
+
+        iothread_put_aio_context(dataplane->iothread, &io_holder);
     }
 
     g_free(dataplane);
-- 
2.49.0