From patchwork Thu Oct 8 18:59:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Blake X-Patchwork-Id: 303409 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9969AC433E7 for ; Thu, 8 Oct 2020 19:05:42 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0418A207DE for ; Thu, 8 Oct 2020 19:05:37 +0000 (UTC) Authentication-Results: mail.kernel.org; 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Thu, 8 Oct 2020 18:59:55 +0000 (UTC) Received: from blue.redhat.com (ovpn-113-14.phx2.redhat.com [10.3.113.14]) by smtp.corp.redhat.com (Postfix) with ESMTP id 808DC5D9E8; Thu, 8 Oct 2020 18:59:55 +0000 (UTC) From: Eric Blake To: qemu-devel@nongnu.org Subject: [PULL 3/8] block/nbd: correctly use qio_channel_detach_aio_context when needed Date: Thu, 8 Oct 2020 13:59:46 -0500 Message-Id: <20201008185951.1026052-4-eblake@redhat.com> In-Reply-To: <20201008185951.1026052-1-eblake@redhat.com> References: <20201008185951.1026052-1-eblake@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eblake@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=eblake@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/08 02:56:27 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] 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, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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: Kevin Wolf , Vladimir Sementsov-Ogievskiy , "open list:Network Block Dev..." , Max Reitz Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Vladimir Sementsov-Ogievskiy Don't use nbd_client_detach_aio_context() driver handler where we want to finalize the connection. We should directly use qio_channel_detach_aio_context() in such cases. Driver handler may (and will) contain another things, unrelated to the qio channel. Signed-off-by: Vladimir Sementsov-Ogievskiy Message-Id: <20200903190301.367620-3-vsementsov@virtuozzo.com> Reviewed-by: Eric Blake Signed-off-by: Eric Blake --- block/nbd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/block/nbd.c b/block/nbd.c index 912ea27be7d8..a495ad7ddff8 100644 --- a/block/nbd.c +++ b/block/nbd.c @@ -549,7 +549,7 @@ static coroutine_fn void nbd_reconnect_attempt(BDRVNBDState *s) /* Finalize previous connection if any */ if (s->ioc) { - nbd_client_detach_aio_context(s->bs); + qio_channel_detach_aio_context(QIO_CHANNEL(s->ioc)); object_unref(OBJECT(s->sioc)); s->sioc = NULL; object_unref(OBJECT(s->ioc)); @@ -707,7 +707,7 @@ static coroutine_fn void nbd_connection_entry(void *opaque) s->connection_co = NULL; if (s->ioc) { - nbd_client_detach_aio_context(s->bs); + qio_channel_detach_aio_context(QIO_CHANNEL(s->ioc)); object_unref(OBJECT(s->sioc)); s->sioc = NULL; object_unref(OBJECT(s->ioc));