From nobody Mon Feb 9 15:09:47 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1627303855303659.7349512385057; Mon, 26 Jul 2021 05:50:55 -0700 (PDT) Received: from localhost ([::1]:48764 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m804M-0003r6-63 for importer@patchew.org; Mon, 26 Jul 2021 08:50:54 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:44408) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m7zxm-0000Jw-9S for qemu-devel@nongnu.org; Mon, 26 Jul 2021 08:44:06 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:31155) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m7zxf-0007rn-Ns for qemu-devel@nongnu.org; Mon, 26 Jul 2021 08:44:06 -0400 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-302-ZTxtfoenNn2-ywjqX18gnQ-1; Mon, 26 Jul 2021 08:43:57 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A974F80292B; Mon, 26 Jul 2021 12:43:56 +0000 (UTC) Received: from dgilbert-t580.localhost (ovpn-113-117.ams2.redhat.com [10.36.113.117]) by smtp.corp.redhat.com (Postfix) with ESMTP id 35A3A60C4A; Mon, 26 Jul 2021 12:43:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1627303439; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=U/gl5wfsyWRK+zKZ13uSTxhB2b9wzq8TiiOdh9by1cI=; b=dq1qmJEqFMArLHhbqtrMV6cvRTm7laWdtc9wwmmi+kdct/WfE118DFfOvNPLILwhlCdlgc y62gtMjIX9FBi2X7wj8chcLLThYt46JENPvPiJxAtf9O8dAXyNI7YxZT6hrCYfKaiFI/2N DAn66/kj4xlQCNXjO/8HQA5DWSAdqi4= X-MC-Unique: ZTxtfoenNn2-ywjqX18gnQ-1 From: "Dr. David Alan Gilbert (git)" To: qemu-devel@nongnu.org, wei.w.wang@intel.com, peterx@redhat.com Subject: [PULL 4/7] migration: Introduce migration_ioc_[un]register_yank() Date: Mon, 26 Jul 2021 13:43:28 +0100 Message-Id: <20210726124331.124710-5-dgilbert@redhat.com> In-Reply-To: <20210726124331.124710-1-dgilbert@redhat.com> References: <20210726124331.124710-1-dgilbert@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dgilbert@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=dgilbert@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -34 X-Spam_score: -3.5 X-Spam_bar: --- X-Spam_report: (-3.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.717, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=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: , Cc: berrange@redhat.com, leobras@redhat.com, david@redhat.com, quintela@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1627303856490100001 Content-Type: text/plain; charset="utf-8" From: Peter Xu There're plenty of places in migration/* that checks against either socket = or tls typed ioc for yank operations. Provide two helpers to hide all these information. Reviewed-by: Dr. David Alan Gilbert Signed-off-by: Peter Xu Message-Id: <20210722175841.938739-4-peterx@redhat.com> Reviewed-by: Lukas Straub Signed-off-by: Dr. David Alan Gilbert --- migration/channel.c | 15 ++------------- migration/multifd.c | 8 ++------ migration/qemu-file-channel.c | 8 ++------ migration/yank_functions.c | 28 ++++++++++++++++++++++++++++ migration/yank_functions.h | 2 ++ 5 files changed, 36 insertions(+), 25 deletions(-) diff --git a/migration/channel.c b/migration/channel.c index 01275a9162..c4fc000a1a 100644 --- a/migration/channel.c +++ b/migration/channel.c @@ -44,13 +44,7 @@ void migration_channel_process_incoming(QIOChannel *ioc) TYPE_QIO_CHANNEL_TLS)) { migration_tls_channel_process_incoming(s, ioc, &local_err); } else { - if (object_dynamic_cast(OBJECT(ioc), TYPE_QIO_CHANNEL_SOCKET) || - object_dynamic_cast(OBJECT(ioc), TYPE_QIO_CHANNEL_TLS)) { - yank_register_function(MIGRATION_YANK_INSTANCE, - migration_yank_iochannel, - QIO_CHANNEL(ioc)); - } - + migration_ioc_register_yank(ioc); migration_ioc_process_incoming(ioc, &local_err); } =20 @@ -94,12 +88,7 @@ void migration_channel_connect(MigrationState *s, } else { QEMUFile *f =3D qemu_fopen_channel_output(ioc); =20 - if (object_dynamic_cast(OBJECT(ioc), TYPE_QIO_CHANNEL_SOCKET) = || - object_dynamic_cast(OBJECT(ioc), TYPE_QIO_CHANNEL_TLS)) { - yank_register_function(MIGRATION_YANK_INSTANCE, - migration_yank_iochannel, - QIO_CHANNEL(ioc)); - } + migration_ioc_register_yank(ioc); =20 qemu_mutex_lock(&s->qemu_file_lock); s->to_dst_file =3D f; diff --git a/migration/multifd.c b/migration/multifd.c index ab41590e71..377da78f5b 100644 --- a/migration/multifd.c +++ b/migration/multifd.c @@ -987,12 +987,8 @@ int multifd_load_cleanup(Error **errp) for (i =3D 0; i < migrate_multifd_channels(); i++) { MultiFDRecvParams *p =3D &multifd_recv_state->params[i]; =20 - if ((object_dynamic_cast(OBJECT(p->c), TYPE_QIO_CHANNEL_SOCKET) || - object_dynamic_cast(OBJECT(p->c), TYPE_QIO_CHANNEL_TLS)) - && OBJECT(p->c)->ref =3D=3D 1) { - yank_unregister_function(MIGRATION_YANK_INSTANCE, - migration_yank_iochannel, - QIO_CHANNEL(p->c)); + if (OBJECT(p->c)->ref =3D=3D 1) { + migration_ioc_unregister_yank(p->c); } =20 object_unref(OBJECT(p->c)); diff --git a/migration/qemu-file-channel.c b/migration/qemu-file-channel.c index fad340ea7a..867a5ed0c3 100644 --- a/migration/qemu-file-channel.c +++ b/migration/qemu-file-channel.c @@ -107,12 +107,8 @@ static int channel_close(void *opaque, Error **errp) int ret; QIOChannel *ioc =3D QIO_CHANNEL(opaque); ret =3D qio_channel_close(ioc, errp); - if ((object_dynamic_cast(OBJECT(ioc), TYPE_QIO_CHANNEL_SOCKET) || - object_dynamic_cast(OBJECT(ioc), TYPE_QIO_CHANNEL_TLS)) - && OBJECT(ioc)->ref =3D=3D 1) { - yank_unregister_function(MIGRATION_YANK_INSTANCE, - migration_yank_iochannel, - QIO_CHANNEL(ioc)); + if (OBJECT(ioc)->ref =3D=3D 1) { + migration_ioc_unregister_yank(ioc); } object_unref(OBJECT(ioc)); return ret; diff --git a/migration/yank_functions.c b/migration/yank_functions.c index 96c90e17dc..23697173ae 100644 --- a/migration/yank_functions.c +++ b/migration/yank_functions.c @@ -11,6 +11,9 @@ #include "qapi/error.h" #include "io/channel.h" #include "yank_functions.h" +#include "qemu/yank.h" +#include "io/channel-socket.h" +#include "io/channel-tls.h" =20 void migration_yank_iochannel(void *opaque) { @@ -18,3 +21,28 @@ void migration_yank_iochannel(void *opaque) =20 qio_channel_shutdown(ioc, QIO_CHANNEL_SHUTDOWN_BOTH, NULL); } + +/* Return whether yank is supported on this ioc */ +static bool migration_ioc_yank_supported(QIOChannel *ioc) +{ + return object_dynamic_cast(OBJECT(ioc), TYPE_QIO_CHANNEL_SOCKET) || + object_dynamic_cast(OBJECT(ioc), TYPE_QIO_CHANNEL_TLS); +} + +void migration_ioc_register_yank(QIOChannel *ioc) +{ + if (migration_ioc_yank_supported(ioc)) { + yank_register_function(MIGRATION_YANK_INSTANCE, + migration_yank_iochannel, + QIO_CHANNEL(ioc)); + } +} + +void migration_ioc_unregister_yank(QIOChannel *ioc) +{ + if (migration_ioc_yank_supported(ioc)) { + yank_unregister_function(MIGRATION_YANK_INSTANCE, + migration_yank_iochannel, + QIO_CHANNEL(ioc)); + } +} diff --git a/migration/yank_functions.h b/migration/yank_functions.h index 055ea22523..74c7f18c91 100644 --- a/migration/yank_functions.h +++ b/migration/yank_functions.h @@ -15,3 +15,5 @@ * @opaque: QIOChannel to shutdown */ void migration_yank_iochannel(void *opaque); +void migration_ioc_register_yank(QIOChannel *ioc); +void migration_ioc_unregister_yank(QIOChannel *ioc); --=20 2.31.1