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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=40.107.22.122; envelope-from=vsementsov@virtuozzo.com; helo=EUR05-AM6-obe.outbound.protection.outlook.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @virtuozzo.com) X-ZM-MESSAGEID: 1632139597732100001 Content-Type: text/plain; charset="utf-8" Use bdrv_new_open_driver_opts() instead of complicated bdrv_open(). Among other extra things bdrv_open() also check for white-listed formats, which we don't want for internal node creation: currently backup doesn't work when copy-before-write filter is not white-listed. As well block-stream doesn't work when copy-on-read is not white-listed. Fixes: 751cec7a261adaf1145dc7adf6de7c9c084e5a0b Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=3D2004812 Reported-by: Yanan Fu Signed-off-by: Vladimir Sementsov-Ogievskiy --- block.c | 32 +++++++++++++++++++++++++++----- 1 file changed, 27 insertions(+), 5 deletions(-) diff --git a/block.c b/block.c index 3a90407b83..a174801785 100644 --- a/block.c +++ b/block.c @@ -5134,11 +5134,29 @@ BlockDriverState *bdrv_insert_node(BlockDriverState= *bs, QDict *options, ERRP_GUARD(); int ret; BlockDriverState *new_node_bs; + const char *drvname, *node_name; + BlockDriver *drv; + + drvname =3D qdict_get_try_str(options, "driver"); + if (!drvname) { + error_setg(errp, "driver is not specified"); + goto fail; + } + + drv =3D bdrv_find_format(drvname); + if (!drv) { + error_setg(errp, "Unknown driver: '%s'", drvname); + goto fail; + } =20 - new_node_bs =3D bdrv_open(NULL, NULL, options, flags, errp); - if (new_node_bs =3D=3D NULL) { + node_name =3D qdict_get_try_str(options, "node-name"); + + new_node_bs =3D bdrv_new_open_driver_opts(drv, node_name, options, fla= gs, + errp); + options =3D NULL; /* bdrv_new_open_driver() eats options */ + if (!new_node_bs) { error_prepend(errp, "Could not create node: "); - return NULL; + goto fail; } =20 bdrv_drained_begin(bs); @@ -5147,11 +5165,15 @@ BlockDriverState *bdrv_insert_node(BlockDriverState= *bs, QDict *options, =20 if (ret < 0) { error_prepend(errp, "Could not replace node: "); - bdrv_unref(new_node_bs); - return NULL; + goto fail; } =20 return new_node_bs; + +fail: + qobject_unref(options); + bdrv_unref(new_node_bs); + return NULL; } =20 /* --=20 2.29.2