diff --git a/block.c b/block.c
index 4e52b1c588cdc89666be5981d588b8fe8f5710ba..c682c3e3b96b7056fb3615b7702343d50facfdda 100644
--- a/block.c
+++ b/block.c
@@ -2827,14 +2827,15 @@ static BdrvChildRole bdrv_backing_role(BlockDriverState *bs)
* Sets the bs->backing link of a BDS. A new reference is created; callers
* which don't need their own reference any more must call bdrv_unref().
*/
-void bdrv_set_backing_hd(BlockDriverState *bs, BlockDriverState *backing_hd,
- Error **errp)
+int bdrv_set_backing_hd(BlockDriverState *bs, BlockDriverState *backing_hd,
+ Error **errp)
{
+ int ret = 0;
bool update_inherits_from = bdrv_chain_contains(bs, backing_hd) &&
bdrv_inherits_from_recursive(backing_hd, bs);
if (bdrv_is_backing_chain_frozen(bs, child_bs(bs->backing), errp)) {
- return;
+ return -EPERM;
}
if (backing_hd) {
@@ -2853,15 +2854,22 @@ void bdrv_set_backing_hd(BlockDriverState *bs, BlockDriverState *backing_hd,
bs->backing = bdrv_attach_child(bs, backing_hd, "backing", &child_of_bds,
bdrv_backing_role(bs), errp);
+ if (!bs->backing) {
+ ret = -EPERM;
+ goto out;
+ }
+
/* If backing_hd was already part of bs's backing chain, and
* inherits_from pointed recursively to bs then let's update it to
* point directly to bs (else it will become NULL). */
- if (bs->backing && update_inherits_from) {
+ if (update_inherits_from) {
backing_hd->inherits_from = bs;
}
out:
bdrv_refresh_limits(bs, NULL);
+
+ return ret;
}
/*
@@ -3110,7 +3118,6 @@ static BlockDriverState *bdrv_append_temp_snapshot(BlockDriverState *bs,
int64_t total_size;
QemuOpts *opts = NULL;
BlockDriverState *bs_snapshot = NULL;
- Error *local_err = NULL;
int ret;
/* if snapshot, we create a temporary backing file and open it
@@ -3157,9 +3164,8 @@ static BlockDriverState *bdrv_append_temp_snapshot(BlockDriverState *bs,
* order to be able to return one, we have to increase
* bs_snapshot's refcount here */
bdrv_ref(bs_snapshot);
- bdrv_append(bs_snapshot, bs, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
+ ret = bdrv_append(bs_snapshot, bs, errp);
+ if (ret < 0) {
bs_snapshot = NULL;
goto out;
}
@@ -4532,9 +4538,9 @@ static bool should_update_child(BdrvChild *c, BlockDriverState *to)
* With auto_skip=false the error is returned if from has a parent which should
* not be updated.
*/
-static void bdrv_replace_node_common(BlockDriverState *from,
- BlockDriverState *to,
- bool auto_skip, Error **errp)
+static int bdrv_replace_node_common(BlockDriverState *from,
+ BlockDriverState *to,
+ bool auto_skip, Error **errp)
{
BdrvChild *c, *next;
GSList *list = NULL, *p;
@@ -4556,11 +4562,13 @@ static void bdrv_replace_node_common(BlockDriverState *from,
if (auto_skip) {
continue;
}
+ ret = -EINVAL;
error_setg(errp, "Should not change '%s' link to '%s'",
c->name, from->node_name);
goto out;
}
if (c->frozen) {
+ ret = -EPERM;
error_setg(errp, "Cannot change '%s' link to '%s'",
c->name, from->node_name);
goto out;
@@ -4591,14 +4599,18 @@ static void bdrv_replace_node_common(BlockDriverState *from,
bdrv_set_perm(to);
+ ret = 0;
+
out:
g_slist_free(list);
bdrv_drained_end(from);
bdrv_unref(from);
+
+ return ret;
}
-void bdrv_replace_node(BlockDriverState *from, BlockDriverState *to,
- Error **errp)
+int bdrv_replace_node(BlockDriverState *from, BlockDriverState *to,
+ Error **errp)
{
return bdrv_replace_node_common(from, to, true, errp);
}
@@ -4619,28 +4631,30 @@ void bdrv_replace_node(BlockDriverState *from, BlockDriverState *to,
* parents of bs_top after bdrv_append() returns. If the caller needs to keep a
* reference of its own, it must call bdrv_ref().
*/
-void bdrv_append(BlockDriverState *bs_new, BlockDriverState *bs_top,
- Error **errp)
+int bdrv_append(BlockDriverState *bs_new, BlockDriverState *bs_top,
+ Error **errp)
{
- Error *local_err = NULL;
-
- bdrv_set_backing_hd(bs_new, bs_top, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
+ int ret = bdrv_set_backing_hd(bs_new, bs_top, errp);
+ if (ret < 0) {
goto out;
}
- bdrv_replace_node(bs_top, bs_new, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
+ ret = bdrv_replace_node(bs_top, bs_new, errp);
+ if (ret < 0) {
bdrv_set_backing_hd(bs_new, NULL, &error_abort);
goto out;
}
- /* bs_new is now referenced by its new parents, we don't need the
- * additional reference any more. */
+ ret = 0;
+
out:
+ /*
+ * bs_new is now referenced by its new parents, we don't need the
+ * additional reference any more.
+ */
bdrv_unref(bs_new);
+
+ return ret;
}
static void bdrv_delete(BlockDriverState *bs)
diff --git a/block/backup-top.c b/block/backup-top.c
index 6e7e7bf34047ab902f69616d6928f2b96dc5c6f9..d1253e1aa63f5758d42624ceca416e647cd42cc3 100644
--- a/block/backup-top.c
+++ b/block/backup-top.c
@@ -191,7 +191,8 @@ BlockDriverState *bdrv_backup_top_append(BlockDriverState *source,
BlockCopyState **bcs,
Error **errp)
{
- Error *local_err = NULL;
+ ERRP_GUARD();
+ int ret;
BDRVBackupTopState *state;
BlockDriverState *top;
bool appended = false;
@@ -224,9 +225,9 @@ BlockDriverState *bdrv_backup_top_append(BlockDriverState *source,
bdrv_drained_begin(source);
bdrv_ref(top);
- bdrv_append(top, source, &local_err);
- if (local_err) {
- error_prepend(&local_err, "Cannot append backup-top filter: ");
+ ret = bdrv_append(top, source, errp);
+ if (ret < 0) {
+ error_prepend(errp, "Cannot append backup-top filter: ");
goto fail;
}
appended = true;
@@ -236,19 +237,18 @@ BlockDriverState *bdrv_backup_top_append(BlockDriverState *source,
* we want.
*/
state->active = true;
- bdrv_child_refresh_perms(top, top->backing, &local_err);
- if (local_err) {
- error_prepend(&local_err,
- "Cannot set permissions for backup-top filter: ");
+ ret = bdrv_child_refresh_perms(top, top->backing, errp);
+ if (ret < 0) {
+ error_prepend(errp, "Cannot set permissions for backup-top filter: ");
goto fail;
}
state->cluster_size = cluster_size;
state->bcs = block_copy_state_new(top->backing, state->target,
cluster_size, perf->use_copy_range,
- write_flags, &local_err);
- if (local_err) {
- error_prepend(&local_err, "Cannot create block-copy-state: ");
+ write_flags, errp);
+ if (!state->bcs) {
+ error_prepend(errp, "Cannot create block-copy-state: ");
goto fail;
}
*bcs = state->bcs;
@@ -266,7 +266,6 @@ fail:
}
bdrv_drained_end(source);
- error_propagate(errp, local_err);
return NULL;
}
diff --git a/block/commit.c b/block/commit.c
index 71db7ba7472e7c64b6b306823644a37759d33e0b..dd9ba87349e3bfa721996c59cbb1ddd9765aa90a 100644
--- a/block/commit.c
+++ b/block/commit.c
@@ -254,7 +254,6 @@ void commit_start(const char *job_id, BlockDriverState *bs,
BlockDriverState *iter;
BlockDriverState *commit_top_bs = NULL;
BlockDriverState *filtered_base;
- Error *local_err = NULL;
int64_t base_size, top_size;
uint64_t base_perms, iter_shared_perms;
int ret;
@@ -312,10 +311,9 @@ void commit_start(const char *job_id, BlockDriverState *bs,
commit_top_bs->total_sectors = top->total_sectors;
- bdrv_append(commit_top_bs, top, &local_err);
- if (local_err) {
+ ret = bdrv_append(commit_top_bs, top, errp);
+ if (ret < 0) {
commit_top_bs = NULL;
- error_propagate(errp, local_err);
goto fail;
}
diff --git a/block/mirror.c b/block/mirror.c
index 9faffe470774cc807f489cb246100fb1c48c25ee..1803c6988b2e743b7f83f3f11c959c730d15658c 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -1569,7 +1569,6 @@ static BlockJob *mirror_start_job(
BlockDriverState *mirror_top_bs;
bool target_is_backing;
uint64_t target_perms, target_shared_perms;
- Error *local_err = NULL;
int ret;
if (granularity == 0) {
@@ -1618,12 +1617,11 @@ static BlockJob *mirror_start_job(
* it alive until block_job_create() succeeds even if bs has no parent. */
bdrv_ref(mirror_top_bs);
bdrv_drained_begin(bs);
- bdrv_append(mirror_top_bs, bs, &local_err);
+ ret = bdrv_append(mirror_top_bs, bs, errp);
bdrv_drained_end(bs);
- if (local_err) {
+ if (ret < 0) {
bdrv_unref(mirror_top_bs);
- error_propagate(errp, local_err);
return NULL;
}
diff --git a/blockdev.c b/blockdev.c
index b250b9b9595788a945792d238e6f8711ae66993f..cd438e60e35a0887abc9f6509609811c87284cef 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1432,6 +1432,7 @@ typedef struct ExternalSnapshotState {
static void external_snapshot_prepare(BlkActionState *common,
Error **errp)
{
+ int ret;
int flags = 0;
QDict *options = NULL;
Error *local_err = NULL;
@@ -1591,9 +1592,8 @@ static void external_snapshot_prepare(BlkActionState *common,
* can fail, so we need to do it in .prepare; undoing it for abort is
* always possible. */
bdrv_ref(state->new_bs);
- bdrv_append(state->new_bs, state->old_bs, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
+ ret = bdrv_append(state->new_bs, state->old_bs, errp);
+ if (ret < 0) {
goto out;
}
state->overlay_appended = true;
diff --git a/include/block/block.h b/include/block/block.h
index 2f2698074e303df3b8922fef4b0d9b2b3a792569..a9b7f03f11925abd05d861759fcccafba6ae4cd1 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -356,10 +356,10 @@ int bdrv_create(BlockDriver *drv, const char* filename,
int bdrv_create_file(const char *filename, QemuOpts *opts, Error **errp);
BlockDriverState *bdrv_new(void);
-void bdrv_append(BlockDriverState *bs_new, BlockDriverState *bs_top,
- Error **errp);
-void bdrv_replace_node(BlockDriverState *from, BlockDriverState *to,
- Error **errp);
+int bdrv_append(BlockDriverState *bs_new, BlockDriverState *bs_top,
+ Error **errp);
+int bdrv_replace_node(BlockDriverState *from, BlockDriverState *to,
+ Error **errp);
BlockDriverState *bdrv_insert_node(BlockDriverState *bs, QDict *node_options,
int flags, Error **errp);
@@ -373,8 +373,8 @@ BdrvChild *bdrv_open_child(const char *filename,
BdrvChildRole child_role,
bool allow_none, Error **errp);
BlockDriverState *bdrv_open_blockdev_ref(BlockdevRef *ref, Error **errp);
-void bdrv_set_backing_hd(BlockDriverState *bs, BlockDriverState *backing_hd,
- Error **errp);
+int bdrv_set_backing_hd(BlockDriverState *bs, BlockDriverState *backing_hd,
+ Error **errp);
int bdrv_open_backing_file(BlockDriverState *bs, QDict *parent_options,
const char *bdref_key, Error **errp);
BlockDriverState *bdrv_open(const char *filename, const char *reference,
diff --git a/migration/block-dirty-bitmap.c b/migration/block-dirty-bitmap.c
index c61d382be87c88420aade1942a6e53101aabb2f8..975093610a4112ce0edef269e89285a20c5a8176 100644
--- a/migration/block-dirty-bitmap.c
+++ b/migration/block-dirty-bitmap.c
@@ -75,6 +75,8 @@
#include "qemu/id.h"
#include "qapi/error.h"
#include "qapi/qapi-commands-migration.h"
+#include "qapi/qapi-visit-migration.h"
+#include "qapi/clone-visitor.h"
#include "trace.h"
#define CHUNK_SIZE (1 << 10)
@@ -148,6 +150,7 @@ typedef struct DBMLoadState {
BdrvDirtyBitmap *bitmap;
bool before_vm_start_handled; /* set in dirty_bitmap_mig_before_vm_start */
+ BitmapMigrationBitmapAlias *bmap_inner;
/*
* cancelled
@@ -224,6 +227,7 @@ static GHashTable *construct_alias_map(const BitmapMigrationNodeAliasList *bbm,
AliasMapInnerNode *amin;
GHashTable *bitmaps_map;
const char *node_map_from, *node_map_to;
+ GDestroyNotify gdn;
if (!id_wellformed(bmna->alias)) {
error_setg(errp, "The node alias '%s' is not well-formed",
@@ -263,8 +267,9 @@ static GHashTable *construct_alias_map(const BitmapMigrationNodeAliasList *bbm,
node_map_to = bmna->node_name;
}
- bitmaps_map = g_hash_table_new_full(g_str_hash, g_str_equal,
- g_free, g_free);
+ gdn = (GDestroyNotify) qapi_free_BitmapMigrationBitmapAlias;
+ bitmaps_map = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
+ gdn);
amin = g_new(AliasMapInnerNode, 1);
*amin = (AliasMapInnerNode){
@@ -276,7 +281,7 @@ static GHashTable *construct_alias_map(const BitmapMigrationNodeAliasList *bbm,
for (bmbal = bmna->bitmaps; bmbal; bmbal = bmbal->next) {
const BitmapMigrationBitmapAlias *bmba = bmbal->value;
- const char *bmap_map_from, *bmap_map_to;
+ const char *bmap_map_from;
if (strlen(bmba->alias) > UINT8_MAX) {
error_setg(errp,
@@ -293,7 +298,6 @@ static GHashTable *construct_alias_map(const BitmapMigrationNodeAliasList *bbm,
if (name_to_alias) {
bmap_map_from = bmba->name;
- bmap_map_to = bmba->alias;
if (g_hash_table_contains(bitmaps_map, bmba->name)) {
error_setg(errp, "The bitmap '%s'/'%s' is mapped twice",
@@ -302,7 +306,6 @@ static GHashTable *construct_alias_map(const BitmapMigrationNodeAliasList *bbm,
}
} else {
bmap_map_from = bmba->alias;
- bmap_map_to = bmba->name;
if (g_hash_table_contains(bitmaps_map, bmba->alias)) {
error_setg(errp, "The bitmap alias '%s'/'%s' is used twice",
@@ -311,8 +314,8 @@ static GHashTable *construct_alias_map(const BitmapMigrationNodeAliasList *bbm,
}
}
- g_hash_table_insert(bitmaps_map,
- g_strdup(bmap_map_from), g_strdup(bmap_map_to));
+ g_hash_table_insert(bitmaps_map, g_strdup(bmap_map_from),
+ QAPI_CLONE(BitmapMigrationBitmapAlias, bmba));
}
}
@@ -527,6 +530,7 @@ static int add_bitmaps_to_list(DBMSaveState *s, BlockDriverState *bs,
}
FOR_EACH_DIRTY_BITMAP(bs, bitmap) {
+ BitmapMigrationBitmapAliasTransform *bitmap_transform = NULL;
bitmap_name = bdrv_dirty_bitmap_name(bitmap);
if (!bitmap_name) {
continue;
@@ -538,11 +542,18 @@ static int add_bitmaps_to_list(DBMSaveState *s, BlockDriverState *bs,
}
if (bitmap_aliases) {
- bitmap_alias = g_hash_table_lookup(bitmap_aliases, bitmap_name);
- if (!bitmap_alias) {
+ BitmapMigrationBitmapAlias *bmap_inner;
+
+ bmap_inner = g_hash_table_lookup(bitmap_aliases, bitmap_name);
+ if (!bmap_inner) {
/* Skip bitmaps with no alias */
continue;
}
+
+ bitmap_alias = bmap_inner->alias;
+ if (bmap_inner->has_transform) {
+ bitmap_transform = bmap_inner->transform;
+ }
} else {
if (strlen(bitmap_name) > UINT8_MAX) {
error_report("Cannot migrate bitmap '%s' on node '%s': "
@@ -568,8 +579,15 @@ static int add_bitmaps_to_list(DBMSaveState *s, BlockDriverState *bs,
if (bdrv_dirty_bitmap_enabled(bitmap)) {
dbms->flags |= DIRTY_BITMAP_MIG_START_FLAG_ENABLED;
}
- if (bdrv_dirty_bitmap_get_persistence(bitmap)) {
- dbms->flags |= DIRTY_BITMAP_MIG_START_FLAG_PERSISTENT;
+ if (bitmap_transform &&
+ bitmap_transform->has_persistent) {
+ if (bitmap_transform->persistent) {
+ dbms->flags |= DIRTY_BITMAP_MIG_START_FLAG_PERSISTENT;
+ }
+ } else {
+ if (bdrv_dirty_bitmap_get_persistence(bitmap)) {
+ dbms->flags |= DIRTY_BITMAP_MIG_START_FLAG_PERSISTENT;
+ }
}
QSIMPLEQ_INSERT_TAIL(&s->dbms_list, dbms, entry);
@@ -777,6 +795,7 @@ static int dirty_bitmap_load_start(QEMUFile *f, DBMLoadState *s)
uint32_t granularity = qemu_get_be32(f);
uint8_t flags = qemu_get_byte(f);
LoadBitmapState *b;
+ bool persistent;
if (s->cancelled) {
return 0;
@@ -801,7 +820,15 @@ static int dirty_bitmap_load_start(QEMUFile *f, DBMLoadState *s)
return -EINVAL;
}
- if (flags & DIRTY_BITMAP_MIG_START_FLAG_PERSISTENT) {
+ if (s->bmap_inner &&
+ s->bmap_inner->has_transform &&
+ s->bmap_inner->transform->has_persistent) {
+ persistent = s->bmap_inner->transform->persistent;
+ } else {
+ persistent = flags & DIRTY_BITMAP_MIG_START_FLAG_PERSISTENT;
+ }
+
+ if (persistent) {
bdrv_dirty_bitmap_set_persistence(s->bitmap, true);
}
@@ -1074,14 +1101,19 @@ static int dirty_bitmap_load_header(QEMUFile *f, DBMLoadState *s,
bitmap_name = s->bitmap_alias;
if (!s->cancelled && bitmap_alias_map) {
- bitmap_name = g_hash_table_lookup(bitmap_alias_map,
- s->bitmap_alias);
- if (!bitmap_name) {
+ BitmapMigrationBitmapAlias *bmap_inner;
+
+ bmap_inner = g_hash_table_lookup(bitmap_alias_map, s->bitmap_alias);
+ if (!bmap_inner) {
error_report("Error: Unknown bitmap alias '%s' on node "
"'%s' (alias '%s')", s->bitmap_alias,
s->bs->node_name, s->node_alias);
cancel_incoming_locked(s);
+ } else {
+ bitmap_name = bmap_inner->name;
}
+
+ s->bmap_inner = bmap_inner;
}
if (!s->cancelled) {
diff --git a/qapi/migration.json b/qapi/migration.json
index ce14d78071a5da014ed4ccf4206ccd9e3d2f5ced..6e5943fbb443464f93fe4d69c5c217826b3ab4f0 100644
--- a/qapi/migration.json
+++ b/qapi/migration.json
@@ -536,6 +536,19 @@
'data': [ 'none', 'zlib',
{ 'name': 'zstd', 'if': 'defined(CONFIG_ZSTD)' } ] }
+##
+# @BitmapMigrationBitmapAliasTransform:
+#
+# @persistent: If present, the bitmap will be made persistent
+# or transient depending on this parameter.
+#
+# Since: 6.0
+##
+{ 'struct': 'BitmapMigrationBitmapAliasTransform',
+ 'data': {
+ '*persistent': 'bool'
+ } }
+
##
# @BitmapMigrationBitmapAlias:
#
@@ -544,12 +557,16 @@
# @alias: An alias name for migration (for example the bitmap name on
# the opposite site).
#
+# @transform: Allows the modification of the migrated bitmap.
+# (since 6.0)
+#
# Since: 5.2
##
{ 'struct': 'BitmapMigrationBitmapAlias',
'data': {
'name': 'str',
- 'alias': 'str'
+ 'alias': 'str',
+ '*transform': 'BitmapMigrationBitmapAliasTransform'
} }
##
diff --git a/tests/qemu-iotests/300 b/tests/qemu-iotests/300
index 43264d883d796185fba3ab458dcb6db7bee1048b..63036f6a6e1395729fdaaa604573a7d19d310ea6 100755
--- a/tests/qemu-iotests/300
+++ b/tests/qemu-iotests/300
@@ -600,6 +600,99 @@ class TestCrossAliasMigration(TestDirtyBitmapMigration):
self.verify_dest_has_all_bitmaps()
self.verify_dest_error(None)
+class TestAliasTransformMigration(TestDirtyBitmapMigration):
+ """
+ Tests the 'transform' option which modifies bitmap persistence on migration.
+ """
+
+ src_node_name = 'node-a'
+ dst_node_name = 'node-b'
+ src_bmap_name = 'bmap-a'
+ dst_bmap_name = 'bmap-b'
+
+ def setUp(self) -> None:
+ TestDirtyBitmapMigration.setUp(self)
+
+ # Now create another block device and let both have two bitmaps each
+ result = self.vm_a.qmp('blockdev-add',
+ node_name='node-b', driver='null-co',
+ read_zeroes=False)
+ self.assert_qmp(result, 'return', {})
+
+ result = self.vm_b.qmp('blockdev-add',
+ node_name='node-a', driver='null-co',
+ read_zeroes=False)
+ self.assert_qmp(result, 'return', {})
+
+ bmaps_to_add = (('node-a', 'bmap-b'),
+ ('node-b', 'bmap-a'),
+ ('node-b', 'bmap-b'))
+
+ for (node, bmap) in bmaps_to_add:
+ result = self.vm_a.qmp('block-dirty-bitmap-add',
+ node=node, name=bmap)
+ self.assert_qmp(result, 'return', {})
+
+ @staticmethod
+ def transform_mapping() -> BlockBitmapMapping:
+ return [
+ {
+ 'node-name': 'node-a',
+ 'alias': 'node-a',
+ 'bitmaps': [
+ {
+ 'name': 'bmap-a',
+ 'alias': 'bmap-a',
+ 'transform':
+ {
+ 'persistent': True
+ }
+ },
+ {
+ 'name': 'bmap-b',
+ 'alias': 'bmap-b'
+ }
+ ]
+ },
+ {
+ 'node-name': 'node-b',
+ 'alias': 'node-b',
+ 'bitmaps': [
+ {
+ 'name': 'bmap-a',
+ 'alias': 'bmap-a'
+ },
+ {
+ 'name': 'bmap-b',
+ 'alias': 'bmap-b'
+ }
+ ]
+ }
+ ]
+
+ def verify_dest_bitmap_state(self) -> None:
+ bitmaps = self.vm_b.query_bitmaps()
+
+ for node in bitmaps:
+ bitmaps[node] = sorted(((bmap['name'], bmap['persistent']) for bmap in bitmaps[node]))
+
+ self.assertEqual(bitmaps,
+ {'node-a': [('bmap-a', True), ('bmap-b', False)],
+ 'node-b': [('bmap-a', False), ('bmap-b', False)]})
+
+ def test_transform_on_src(self) -> None:
+ self.set_mapping(self.vm_a, self.transform_mapping())
+
+ self.migrate()
+ self.verify_dest_bitmap_state()
+ self.verify_dest_error(None)
+
+ def test_transform_on_dst(self) -> None:
+ self.set_mapping(self.vm_b, self.transform_mapping())
+
+ self.migrate()
+ self.verify_dest_bitmap_state()
+ self.verify_dest_error(None)
if __name__ == '__main__':
iotests.main(supported_protocols=['file'])
diff --git a/tests/qemu-iotests/300.out b/tests/qemu-iotests/300.out
index cafb8161f7b11e478e2c0834f228257fddcec155..12e9ab7d571b3997b47eb649ff6e98a399812f74 100644
--- a/tests/qemu-iotests/300.out
+++ b/tests/qemu-iotests/300.out
@@ -1,5 +1,5 @@
-.....................................
+.......................................
----------------------------------------------------------------------
-Ran 37 tests
+Ran 39 tests
OK
diff --git a/tests/test-bdrv-graph-mod.c b/tests/test-bdrv-graph-mod.c
index 8cff13830e3e2cca1dd4c67fe9f9d50d70ce9b14..c4f7d1603924443cbe0573a54d508bfac2cd7830 100644
--- a/tests/test-bdrv-graph-mod.c
+++ b/tests/test-bdrv-graph-mod.c
@@ -101,7 +101,7 @@ static BlockDriverState *pass_through_node(const char *name)
*/
static void test_update_perm_tree(void)
{
- Error *local_err = NULL;
+ int ret;
BlockBackend *root = blk_new(qemu_get_aio_context(),
BLK_PERM_WRITE | BLK_PERM_CONSISTENT_READ,
@@ -114,8 +114,8 @@ static void test_update_perm_tree(void)
bdrv_attach_child(filter, bs, "child", &child_of_bds,
BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY, &error_abort);
- bdrv_append(filter, bs, &local_err);
- error_free_or_abort(&local_err);
+ ret = bdrv_append(filter, bs, NULL);
+ g_assert_cmpint(ret, <, 0);
blk_unref(root);
}