From mboxrd@z Thu Jan 1 00:00:00 1970 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=-15.1 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 1FE0DC47097 for ; Thu, 3 Jun 2021 20:52:20 +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 8FF12613E4 for ; Thu, 3 Jun 2021 20:52:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8FF12613E4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; 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bh=vpzWESzF1gQQyYQ7PGRsK6Kon8Tuf576jAteN/NSDQ4=; b=VkfDB+bcALgK/H3Y7UGDBmRMO8z4cKvaSieUVW+6j/4hG2W0ML0ZvG27dmZ92nVsRtRs7V PentH/iAUEGIUavdxRpAXwbsKLJ0B/YYZ3LZ+i1Y9eMJSDbLrqj9SKy+hUGo5jUcEJGxWn KPYh43Obg5oGu1OAMeSwwJtnVU6UfQ8= 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-51-afxFHCTqPyS898H5nWui3g-1; Thu, 03 Jun 2021 16:51:21 -0400 X-MC-Unique: afxFHCTqPyS898H5nWui3g-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id D7F2A343A5; Thu, 3 Jun 2021 20:51:19 +0000 (UTC) Received: from redhat.com (ovpn-113-53.phx2.redhat.com [10.3.113.53]) by smtp.corp.redhat.com (Postfix) with ESMTPS id E9D6B60BD8; Thu, 3 Jun 2021 20:51:18 +0000 (UTC) Date: Thu, 3 Jun 2021 15:51:17 -0500 From: Eric Blake To: Vladimir Sementsov-Ogievskiy Subject: Re: [PATCH v3 29/33] nbd/client-connection: add option for non-blocking connection attempt Message-ID: <20210603205117.qtkcwwsj53l36o4n@redhat.com> References: <20210416080911.83197-1-vsementsov@virtuozzo.com> <20210416080911.83197-30-vsementsov@virtuozzo.com> MIME-Version: 1.0 In-Reply-To: <20210416080911.83197-30-vsementsov@virtuozzo.com> User-Agent: NeoMutt/20210205 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 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 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received-SPF: pass client-ip=216.205.24.124; envelope-from=eblake@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.37, 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: kwolf@redhat.com, qemu-block@nongnu.org, qemu-devel@nongnu.org, mreitz@redhat.com, rvkagan@yandex-team.ru, den@openvz.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Fri, Apr 16, 2021 at 11:09:07AM +0300, Vladimir Sementsov-Ogievskiy wrote: > We'll need a possibility of non-blocking nbd_co_establish_connection(), > so that it returns immediately, and it returns success only if > connections was previously established in background. only if a connection was > > Signed-off-by: Vladimir Sementsov-Ogievskiy > --- > include/block/nbd.h | 2 +- > block/nbd.c | 2 +- > nbd/client-connection.c | 8 +++++++- > 3 files changed, 9 insertions(+), 3 deletions(-) > Reviewed-by: Eric Blake -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3266 Virtualization: qemu.org | libvirt.org