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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=40.107.8.138; envelope-from=vsementsov@virtuozzo.com; helo=EUR04-VI1-obe.outbound.protection.outlook.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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_LOW=-0.7, 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) Content-Type: text/plain; charset="utf-8" block/nbd doesn't need underlying sioc channel anymore. So, we can update nbd/client-connection interface to return only one top-most io channel, which is more straight forward. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Eric Blake --- include/block/nbd.h | 4 ++-- block/nbd.c | 13 ++----------- nbd/client-connection.c | 33 +++++++++++++++++++++++++-------- 3 files changed, 29 insertions(+), 21 deletions(-) diff --git a/include/block/nbd.h b/include/block/nbd.h index 10756d2544..00bf08bade 100644 --- a/include/block/nbd.h +++ b/include/block/nbd.h @@ -419,9 +419,9 @@ NBDClientConnection *nbd_client_connection_new(const So= cketAddress *saddr, Monitor *mon); void nbd_client_connection_release(NBDClientConnection *conn); =20 -QIOChannelSocket *coroutine_fn +QIOChannel *coroutine_fn nbd_co_establish_connection(NBDClientConnection *conn, NBDExportInfo *info, - QIOChannel **ioc, Error **errp); + Error **errp); =20 void coroutine_fn nbd_co_establish_connection_cancel(NBDClientConnection *= conn); =20 diff --git a/block/nbd.c b/block/nbd.c index f9b56c57b4..15b5921725 100644 --- a/block/nbd.c +++ b/block/nbd.c @@ -365,7 +365,6 @@ static coroutine_fn void nbd_reconnect_attempt(BDRVNBDS= tate *s) { int ret; AioContext *aio_context =3D bdrv_get_aio_context(s->bs); - QIOChannelSocket *sioc; =20 if (!nbd_client_connecting(s)) { return; @@ -404,20 +403,12 @@ static coroutine_fn void nbd_reconnect_attempt(BDRVNB= DState *s) s->ioc =3D NULL; } =20 - sioc =3D nbd_co_establish_connection(s->conn, &s->info, &s->ioc, NULL); - if (!sioc) { + s->ioc =3D nbd_co_establish_connection(s->conn, &s->info, NULL); + if (!s->ioc) { ret =3D -ECONNREFUSED; goto out; } =20 - if (s->ioc) { - /* sioc is referenced by s->ioc */ - object_unref(OBJECT(sioc)); - } else { - s->ioc =3D QIO_CHANNEL(sioc); - } - sioc =3D NULL; - qio_channel_set_blocking(QIO_CHANNEL(s->ioc), false, NULL); qio_channel_attach_aio_context(QIO_CHANNEL(s->ioc), aio_context); =20 diff --git a/nbd/client-connection.c b/nbd/client-connection.c index c26cd59464..36d2c7c693 100644 --- a/nbd/client-connection.c +++ b/nbd/client-connection.c @@ -255,15 +255,15 @@ void nbd_client_connection_release(NBDClientConnectio= n *conn) * nbd_receive_export_list() would be zero (see description of NBDExportIn= fo in * include/block/nbd.h). */ -QIOChannelSocket *coroutine_fn +QIOChannel *coroutine_fn nbd_co_establish_connection(NBDClientConnection *conn, NBDExportInfo *info, - QIOChannel **ioc, Error **errp) + Error **errp) { + QIOChannel *ioc; QemuThread thread; =20 if (conn->do_negotiation) { assert(info); - assert(ioc); } =20 WITH_QEMU_LOCK_GUARD(&conn->mutex) { @@ -277,10 +277,17 @@ nbd_co_establish_connection(NBDClientConnection *conn= , NBDExportInfo *info, if (conn->sioc) { /* Previous attempt finally succeeded in background */ if (conn->do_negotiation) { - *ioc =3D g_steal_pointer(&conn->ioc); + ioc =3D g_steal_pointer(&conn->ioc); memcpy(info, &conn->updated_info, sizeof(*info)); } - return g_steal_pointer(&conn->sioc); + if (ioc) { + /* TLS channel now has own reference to parent */ + object_unref(OBJECT(conn->sioc)); + } else { + ioc =3D QIO_CHANNEL(conn->sioc); + } + conn->sioc =3D NULL; + return ioc; } =20 conn->running =3D true; @@ -311,11 +318,21 @@ nbd_co_establish_connection(NBDClientConnection *conn= , NBDExportInfo *info, } else { error_propagate(errp, conn->err); conn->err =3D NULL; - if (conn->sioc && conn->do_negotiation) { - *ioc =3D g_steal_pointer(&conn->ioc); + if (!conn->sioc) { + return NULL; + } + if (conn->do_negotiation) { + ioc =3D g_steal_pointer(&conn->ioc); memcpy(info, &conn->updated_info, sizeof(*info)); } - return g_steal_pointer(&conn->sioc); + if (ioc) { + /* TLS channel now has own reference to parent */ + object_unref(OBJECT(conn->sioc)); + } else { + ioc =3D QIO_CHANNEL(conn->sioc); + } + conn->sioc =3D NULL; + return ioc; } } =20 --=20 2.29.2