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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a01:111:f400:7d00::71e; envelope-from=vsementsov@virtuozzo.com; helo=EUR05-VI1-obe.outbound.protection.outlook.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 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, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 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: 1646169652674100001 Content-Type: text/plain; charset="utf-8" We are going to add one more option of enum type. Let's refactor option parsing so that we can simply work with BlockdevOptionsCbw object. Signed-off-by: Vladimir Sementsov-Ogievskiy --- block/copy-before-write.c | 66 ++++++++++++++++++++++++--------------- 1 file changed, 40 insertions(+), 26 deletions(-) diff --git a/block/copy-before-write.c b/block/copy-before-write.c index 0b6d26605c..56aa7577c3 100644 --- a/block/copy-before-write.c +++ b/block/copy-before-write.c @@ -24,6 +24,7 @@ */ =20 #include "qemu/osdep.h" +#include "qapi/qmp/qjson.h" =20 #include "sysemu/block-backend.h" #include "qemu/cutils.h" @@ -328,46 +329,49 @@ static void cbw_child_perm(BlockDriverState *bs, Bdrv= Child *c, } } =20 -static bool cbw_parse_bitmap_option(QDict *options, BdrvDirtyBitmap **bitm= ap, - Error **errp) +static BlockdevOptionsCbw *cbw_parse_options(QDict *options, Error **errp) { - QDict *bitmap_qdict =3D NULL; - BlockDirtyBitmap *bmp_param =3D NULL; + QDict *cbw_qdict =3D NULL; + BlockdevOptionsCbw *opts =3D NULL; Visitor *v =3D NULL; - bool ret =3D false; =20 - *bitmap =3D NULL; + cbw_qdict =3D qdict_clone_shallow(options); =20 - qdict_extract_subqdict(options, &bitmap_qdict, "bitmap."); - if (!qdict_size(bitmap_qdict)) { - ret =3D true; - goto out; - } + /* + * Delete BlockdevOptions base fields, that are not part of + * BlockdevOptionsCbw. + */ + qdict_del(cbw_qdict, "driver"); + qdict_del(cbw_qdict, "node-name"); + qdict_del(cbw_qdict, "discard"); + qdict_del(cbw_qdict, "cache"); + qdict_extract_subqdict(cbw_qdict, NULL, "cache."); + qdict_del(cbw_qdict, "read-only"); + qdict_del(cbw_qdict, "auto-read-only"); + qdict_del(cbw_qdict, "force-share"); + qdict_del(cbw_qdict, "detect-zeroes"); =20 - v =3D qobject_input_visitor_new_flat_confused(bitmap_qdict, errp); + v =3D qobject_input_visitor_new_flat_confused(cbw_qdict, errp); if (!v) { goto out; } =20 - visit_type_BlockDirtyBitmap(v, NULL, &bmp_param, errp); - if (!bmp_param) { + visit_type_BlockdevOptionsCbw(v, NULL, &opts, errp); + if (!opts) { goto out; } =20 - *bitmap =3D block_dirty_bitmap_lookup(bmp_param->node, bmp_param->name= , NULL, - errp); - if (!*bitmap) { - goto out; - } - - ret =3D true; + /* + * Delete options which we are going to parse through BlockdevOptionsC= bw + * object for original options. + */ + qdict_extract_subqdict(options, NULL, "bitmap"); =20 out: - qapi_free_BlockDirtyBitmap(bmp_param); visit_free(v); - qobject_unref(bitmap_qdict); + qobject_unref(cbw_qdict); =20 - return ret; + return opts; } =20 static int cbw_open(BlockDriverState *bs, QDict *options, int flags, @@ -376,6 +380,12 @@ static int cbw_open(BlockDriverState *bs, QDict *optio= ns, int flags, BDRVCopyBeforeWriteState *s =3D bs->opaque; BdrvDirtyBitmap *bitmap =3D NULL; int64_t cluster_size; + g_autoptr(BlockdevOptionsCbw) opts =3D NULL; + + opts =3D cbw_parse_options(options, errp); + if (!opts) { + return -EINVAL; + } =20 bs->file =3D bdrv_open_child(NULL, options, "file", bs, &child_of_bds, BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY, @@ -390,8 +400,12 @@ static int cbw_open(BlockDriverState *bs, QDict *optio= ns, int flags, return -EINVAL; } =20 - if (!cbw_parse_bitmap_option(options, &bitmap, errp)) { - return -EINVAL; + if (opts->has_bitmap) { + bitmap =3D block_dirty_bitmap_lookup(opts->bitmap->node, + opts->bitmap->name, NULL, errp); + if (!bitmap) { + return -EINVAL; + } } =20 bs->total_sectors =3D bs->file->bs->total_sectors; --=20 2.31.1