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-rw-r--r--tests/unit/test-bdrv-drain.c36
-rw-r--r--tests/unit/test-bdrv-graph-mod.c20
2 files changed, 14 insertions, 42 deletions
diff --git a/tests/unit/test-bdrv-drain.c b/tests/unit/test-bdrv-drain.c
index 59c2793725..3369c2c2aa 100644
--- a/tests/unit/test-bdrv-drain.c
+++ b/tests/unit/test-bdrv-drain.c
@@ -772,11 +772,9 @@ static void test_blockjob_common_drain_node(enum drain_type drain_type,
     tjob->bs = src;
     job = &tjob->common;
 
-    bdrv_drain_all_begin();
-    bdrv_graph_wrlock();
+    bdrv_graph_wrlock_drained();
     block_job_add_bdrv(job, "target", target, 0, BLK_PERM_ALL, &error_abort);
     bdrv_graph_wrunlock();
-    bdrv_drain_all_end();
 
     switch (result) {
     case TEST_JOB_SUCCESS:
@@ -955,13 +953,11 @@ static void bdrv_test_top_close(BlockDriverState *bs)
 {
     BdrvChild *c, *next_c;
 
-    bdrv_drain_all_begin();
-    bdrv_graph_wrlock();
+    bdrv_graph_wrlock_drained();
     QLIST_FOREACH_SAFE(c, &bs->children, next, next_c) {
         bdrv_unref_child(bs, c);
     }
     bdrv_graph_wrunlock();
-    bdrv_drain_all_end();
 }
 
 static int coroutine_fn GRAPH_RDLOCK
@@ -1053,12 +1049,10 @@ static void do_test_delete_by_drain(bool detach_instead_of_delete,
 
     null_bs = bdrv_open("null-co://", NULL, NULL, BDRV_O_RDWR | BDRV_O_PROTOCOL,
                         &error_abort);
-    bdrv_drain_all_begin();
-    bdrv_graph_wrlock();
+    bdrv_graph_wrlock_drained();
     bdrv_attach_child(bs, null_bs, "null-child", &child_of_bds,
                       BDRV_CHILD_DATA, &error_abort);
     bdrv_graph_wrunlock();
-    bdrv_drain_all_end();
 
     /* This child will be the one to pass to requests through to, and
      * it will stall until a drain occurs */
@@ -1066,25 +1060,21 @@ static void do_test_delete_by_drain(bool detach_instead_of_delete,
                                     &error_abort);
     child_bs->total_sectors = 65536 >> BDRV_SECTOR_BITS;
     /* Takes our reference to child_bs */
-    bdrv_drain_all_begin();
-    bdrv_graph_wrlock();
+    bdrv_graph_wrlock_drained();
     tts->wait_child = bdrv_attach_child(bs, child_bs, "wait-child",
                                         &child_of_bds,
                                         BDRV_CHILD_DATA | BDRV_CHILD_PRIMARY,
                                         &error_abort);
     bdrv_graph_wrunlock();
-    bdrv_drain_all_end();
 
     /* This child is just there to be deleted
      * (for detach_instead_of_delete == true) */
     null_bs = bdrv_open("null-co://", NULL, NULL, BDRV_O_RDWR | BDRV_O_PROTOCOL,
                         &error_abort);
-    bdrv_drain_all_begin();
-    bdrv_graph_wrlock();
+    bdrv_graph_wrlock_drained();
     bdrv_attach_child(bs, null_bs, "null-child", &child_of_bds, BDRV_CHILD_DATA,
                       &error_abort);
     bdrv_graph_wrunlock();
-    bdrv_drain_all_end();
 
     blk = blk_new(qemu_get_aio_context(), BLK_PERM_ALL, BLK_PERM_ALL);
     blk_insert_bs(blk, bs, &error_abort);
@@ -1167,8 +1157,7 @@ static void no_coroutine_fn detach_indirect_bh(void *opaque)
 
     bdrv_dec_in_flight(data->child_b->bs);
 
-    bdrv_drain_all_begin();
-    bdrv_graph_wrlock();
+    bdrv_graph_wrlock_drained();
     bdrv_unref_child(data->parent_b, data->child_b);
 
     bdrv_ref(data->c);
@@ -1176,7 +1165,6 @@ static void no_coroutine_fn detach_indirect_bh(void *opaque)
                                       &child_of_bds, BDRV_CHILD_DATA,
                                       &error_abort);
     bdrv_graph_wrunlock();
-    bdrv_drain_all_end();
 }
 
 static void coroutine_mixed_fn detach_by_parent_aio_cb(void *opaque, int ret)
@@ -1274,8 +1262,7 @@ static void TSA_NO_TSA test_detach_indirect(bool by_parent_cb)
     /* Set child relationships */
     bdrv_ref(b);
     bdrv_ref(a);
-    bdrv_drain_all_begin();
-    bdrv_graph_wrlock();
+    bdrv_graph_wrlock_drained();
     child_b = bdrv_attach_child(parent_b, b, "PB-B", &child_of_bds,
                                 BDRV_CHILD_DATA, &error_abort);
     child_a = bdrv_attach_child(parent_b, a, "PB-A", &child_of_bds,
@@ -1286,7 +1273,6 @@ static void TSA_NO_TSA test_detach_indirect(bool by_parent_cb)
                       by_parent_cb ? &child_of_bds : &detach_by_driver_cb_class,
                       BDRV_CHILD_DATA, &error_abort);
     bdrv_graph_wrunlock();
-    bdrv_drain_all_end();
 
     g_assert_cmpint(parent_a->refcnt, ==, 1);
     g_assert_cmpint(parent_b->refcnt, ==, 1);
@@ -1699,8 +1685,7 @@ static void test_drop_intermediate_poll(void)
      * Establish the chain last, so the chain links are the first
      * elements in the BDS.parents lists
      */
-    bdrv_drain_all_begin();
-    bdrv_graph_wrlock();
+    bdrv_graph_wrlock_drained();
     for (i = 0; i < 3; i++) {
         if (i) {
             /* Takes the reference to chain[i - 1] */
@@ -1709,7 +1694,6 @@ static void test_drop_intermediate_poll(void)
         }
     }
     bdrv_graph_wrunlock();
-    bdrv_drain_all_end();
 
     job = block_job_create("job", &test_simple_job_driver, NULL, job_node,
                            0, BLK_PERM_ALL, 0, 0, NULL, NULL, &error_abort);
@@ -1956,12 +1940,10 @@ static void do_test_replace_child_mid_drain(int old_drain_count,
     new_child_bs->total_sectors = 1;
 
     bdrv_ref(old_child_bs);
-    bdrv_drain_all_begin();
-    bdrv_graph_wrlock();
+    bdrv_graph_wrlock_drained();
     bdrv_attach_child(parent_bs, old_child_bs, "child", &child_of_bds,
                       BDRV_CHILD_COW, &error_abort);
     bdrv_graph_wrunlock();
-    bdrv_drain_all_end();
     parent_s->setup_completed = true;
 
     for (i = 0; i < old_drain_count; i++) {
diff --git a/tests/unit/test-bdrv-graph-mod.c b/tests/unit/test-bdrv-graph-mod.c
index 7b03ebe4b0..b077f0e3e3 100644
--- a/tests/unit/test-bdrv-graph-mod.c
+++ b/tests/unit/test-bdrv-graph-mod.c
@@ -137,12 +137,10 @@ static void test_update_perm_tree(void)
 
     blk_insert_bs(root, bs, &error_abort);
 
-    bdrv_drain_all_begin();
-    bdrv_graph_wrlock();
+    bdrv_graph_wrlock_drained();
     bdrv_attach_child(filter, bs, "child", &child_of_bds,
                       BDRV_CHILD_DATA, &error_abort);
     bdrv_graph_wrunlock();
-    bdrv_drain_all_end();
 
     ret = bdrv_append(filter, bs, NULL);
     g_assert_cmpint(ret, <, 0);
@@ -206,13 +204,11 @@ static void test_should_update_child(void)
 
     bdrv_set_backing_hd(target, bs, &error_abort);
 
-    bdrv_drain_all_begin();
-    bdrv_graph_wrlock();
+    bdrv_graph_wrlock_drained();
     g_assert(target->backing->bs == bs);
     bdrv_attach_child(filter, target, "target", &child_of_bds,
                       BDRV_CHILD_DATA, &error_abort);
     bdrv_graph_wrunlock();
-    bdrv_drain_all_end();
     bdrv_append(filter, bs, &error_abort);
 
     bdrv_graph_rdlock_main_loop();
@@ -248,8 +244,7 @@ static void test_parallel_exclusive_write(void)
     bdrv_ref(base);
     bdrv_ref(fl1);
 
-    bdrv_drain_all_begin();
-    bdrv_graph_wrlock();
+    bdrv_graph_wrlock_drained();
     bdrv_attach_child(top, fl1, "backing", &child_of_bds,
                       BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY,
                       &error_abort);
@@ -262,7 +257,6 @@ static void test_parallel_exclusive_write(void)
 
     bdrv_replace_node(fl1, fl2, &error_abort);
     bdrv_graph_wrunlock();
-    bdrv_drain_all_end();
 
     bdrv_drained_end(fl2);
     bdrv_drained_end(fl1);
@@ -369,8 +363,7 @@ static void test_parallel_perm_update(void)
      */
     bdrv_ref(base);
 
-    bdrv_drain_all_begin();
-    bdrv_graph_wrlock();
+    bdrv_graph_wrlock_drained();
     bdrv_attach_child(top, ws, "file", &child_of_bds, BDRV_CHILD_DATA,
                       &error_abort);
     c_fl1 = bdrv_attach_child(ws, fl1, "first", &child_of_bds,
@@ -384,7 +377,6 @@ static void test_parallel_perm_update(void)
                       BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY,
                       &error_abort);
     bdrv_graph_wrunlock();
-    bdrv_drain_all_end();
 
     /* Select fl1 as first child to be active */
     s->selected = c_fl1;
@@ -438,13 +430,11 @@ static void test_append_greedy_filter(void)
     BlockDriverState *base = no_perm_node("base");
     BlockDriverState *fl = exclusive_writer_node("fl1");
 
-    bdrv_drain_all_begin();
-    bdrv_graph_wrlock();
+    bdrv_graph_wrlock_drained();
     bdrv_attach_child(top, base, "backing", &child_of_bds,
                       BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY,
                       &error_abort);
     bdrv_graph_wrunlock();
-    bdrv_drain_all_end();
 
     bdrv_append(fl, base, &error_abort);
     bdrv_unref(fl);