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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=no 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 4E9D5C3A59E for ; Wed, 21 Aug 2019 16:53:15 +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 253D92332A for ; Wed, 21 Aug 2019 16:53:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 253D92332A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=virtuozzo.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:50592 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i0TrG-0000OV-9X for qemu-devel@archiver.kernel.org; Wed, 21 Aug 2019 12:53:14 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:34230) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i0TqT-0007kn-4x for qemu-devel@nongnu.org; Wed, 21 Aug 2019 12:52:26 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1i0TqS-0004Nu-1W for qemu-devel@nongnu.org; Wed, 21 Aug 2019 12:52:25 -0400 Received: from relay.sw.ru ([185.231.240.75]:53178) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1i0TqP-0004AK-50; Wed, 21 Aug 2019 12:52:21 -0400 Received: from [10.94.3.0] (helo=kvm.qa.sw.ru) by relay.sw.ru with esmtp (Exim 4.92) (envelope-from ) id 1i0TqK-0003Ry-Go; Wed, 21 Aug 2019 19:52:16 +0300 From: Vladimir Sementsov-Ogievskiy To: qemu-block@nongnu.org Date: Wed, 21 Aug 2019 19:52:12 +0300 Message-Id: <20190821165215.61406-1-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.18.0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 185.231.240.75 Subject: [Qemu-devel] [PATCH v8 0/3] NBD reconnect 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: fam@euphon.net, kwolf@redhat.com, vsementsov@virtuozzo.com, sheepdog@lists.wpkg.org, qemu-devel@nongnu.org, mreitz@redhat.com, stefanha@redhat.com, den@openvz.org, namei.unix@gmail.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi all! Here is NBD reconnect. Previously, if connection failed all current and future requests will fail. After the series, nbd-client driver will try to reconnect unlimited times. During first @reconnect-delay seconds of reconnecting all requests will wait for the connection, and if it is established requests will be resent. After @reconnect-delay period all requests will be failed (until successful reconnect). v8: preparations are already merged [thx to Eric], old 07 with SI_* constants dropped [Peter] 02: - use NANOSECONDS_PER_SECOND 03: - move to tests/qemu-iotests/264 - limit job speed, otherwise it fails on ramfs as backup finishes too early v7: almost all: rebased on merged nbd.c and nbd-client.c (including patch subject) 01-04: add Eric's r-b 04: wording 05: new 06: rewrite to remove timer earlier 07: new 08: - rebase on 05 and 07 - drop "All rights reserved" - handle drain - improve handling aio context attach 09: move 249 -> 257 Vladimir Sementsov-Ogievskiy (3): qemu-coroutine-sleep: introduce qemu_co_sleep_wake block/nbd: nbd reconnect iotests: test nbd reconnect include/qemu/coroutine.h | 17 +- block/nbd.c | 335 +++++++++++++++++++++++++++------- block/null.c | 2 +- block/sheepdog.c | 2 +- tests/test-bdrv-drain.c | 6 +- tests/test-block-iothread.c | 2 +- util/qemu-coroutine-sleep.c | 47 +++-- tests/qemu-iotests/264 | 65 +++++++ tests/qemu-iotests/264.out | 12 ++ tests/qemu-iotests/group | 1 + tests/qemu-iotests/iotests.py | 4 + 11 files changed, 408 insertions(+), 85 deletions(-) create mode 100755 tests/qemu-iotests/264 create mode 100644 tests/qemu-iotests/264.out -- 2.18.0