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=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 3FB6CC31E51 for ; Tue, 18 Jun 2019 11:54:17 +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 180A32070B for ; Tue, 18 Jun 2019 11:54:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 180A32070B 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]:55916 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hdCgq-0004ol-DC for qemu-devel@archiver.kernel.org; Tue, 18 Jun 2019 07:54:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:48446) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hdCWb-00042a-Au for qemu-devel@nongnu.org; Tue, 18 Jun 2019 07:43:43 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hdCWV-0000Mo-5w for qemu-devel@nongnu.org; Tue, 18 Jun 2019 07:43:40 -0400 Received: from relay.sw.ru ([185.231.240.75]:58016) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hdCWU-0000Jh-Rk; Tue, 18 Jun 2019 07:43:35 -0400 Received: from [10.94.3.0] (helo=kvm.qa.sw.ru) by relay.sw.ru with esmtp (Exim 4.92) (envelope-from ) id 1hdCWO-00016b-LF; Tue, 18 Jun 2019 14:43:28 +0300 From: Vladimir Sementsov-Ogievskiy To: qemu-devel@nongnu.org, qemu-block@nongnu.org Date: Tue, 18 Jun 2019 14:43:19 +0300 Message-Id: <20190618114328.55249-1-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 v7 0/9] 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: kwolf@redhat.com, vsementsov@virtuozzo.com, armbru@redhat.com, mreitz@redhat.com, stefanha@redhat.com, den@openvz.org 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). 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 (9): block/nbd: split connection_co start out of nbd_client_connect block/nbd: use non-blocking io channel for nbd negotiation block/nbd: move from quit to state block/nbd: add cmdline and qapi parameter reconnect-delay block/nbd: refactor nbd connection parameters qemu-coroutine-sleep: introduce qemu_co_sleep_wake qemu/units: add SI decimal units block/nbd: nbd reconnect iotests: test nbd reconnect qapi/block-core.json | 11 +- include/block/nbd.h | 3 +- include/qemu/coroutine.h | 17 +- include/qemu/units.h | 7 + block/nbd.c | 531 +++++++++++++++++++++++++--------- block/null.c | 2 +- block/sheepdog.c | 2 +- nbd/client.c | 16 +- qemu-nbd.c | 2 +- tests/test-bdrv-drain.c | 6 +- tests/test-block-iothread.c | 2 +- util/qemu-coroutine-sleep.c | 47 ++- tests/qemu-iotests/257 | 63 ++++ tests/qemu-iotests/257.out | 10 + tests/qemu-iotests/group | 1 + tests/qemu-iotests/iotests.py | 4 + 16 files changed, 551 insertions(+), 173 deletions(-) create mode 100755 tests/qemu-iotests/257 create mode 100644 tests/qemu-iotests/257.out -- 2.18.0