From patchwork Mon Jun 12 04:05:13 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Cody X-Patchwork-Id: 774432 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3wmK7y0jX1z9s72 for ; Mon, 12 Jun 2017 14:06:04 +1000 (AEST) Received: from localhost ([::1]:36009 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dKGc5-0002UY-Ku for incoming@patchwork.ozlabs.org; Mon, 12 Jun 2017 00:06:01 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46243) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dKGbQ-0002OH-US for qemu-devel@nongnu.org; Mon, 12 Jun 2017 00:05:21 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dKGbQ-0001UA-1X for qemu-devel@nongnu.org; Mon, 12 Jun 2017 00:05:20 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59568) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dKGbN-0001Sw-BE; Mon, 12 Jun 2017 00:05:17 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 5D90485545; Mon, 12 Jun 2017 04:05:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 5D90485545 Authentication-Results: ext-mx04.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx04.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=jcody@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 5D90485545 Received: from localhost (ovpn-116-115.phx2.redhat.com [10.3.116.115]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 2B0B67A4CC; Mon, 12 Jun 2017 04:05:16 +0000 (UTC) From: Jeff Cody To: qemu-devel@nongnu.org Date: Mon, 12 Jun 2017 00:05:13 -0400 Message-Id: <449e09e3de17c34febd360fb2b09af5002b4c3c7.1497240079.git.jcody@redhat.com> In-Reply-To: References: In-Reply-To: References: X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Mon, 12 Jun 2017 04:05:16 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [RFC 1/2] block/rbd: enable filename option and parsing X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, armbru@redhat.com, qemu-block@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" When enabling option parsing and blockdev-add for rbd, we removed the 'filename' option. Unfortunately, this was a bit optimistic, as previous versions of QEMU allowed the use of the option in backing filenames via json. This means that without parsing this option, we cannot open existing images that used to work fine. See bug: https://bugzilla.redhat.com/show_bug.cgi?id=1457088 Signed-off-by: Jeff Cody --- block/rbd.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/block/rbd.c b/block/rbd.c index e551639..cbc0b85 100644 --- a/block/rbd.c +++ b/block/rbd.c @@ -340,6 +340,10 @@ static QemuOptsList runtime_opts = { .type = QEMU_OPT_STRING, .help = "Legacy rados key/value option parameters", }, + { + .name = "filename", + .type = QEMU_OPT_STRING, + }, { /* end of list */ } }, }; @@ -541,12 +545,24 @@ static int qemu_rbd_open(BlockDriverState *bs, QDict *options, int flags, { BDRVRBDState *s = bs->opaque; const char *pool, *snap, *conf, *user, *image_name, *keypairs; - const char *secretid; + const char *secretid, *filename; QemuOpts *opts; Error *local_err = NULL; char *mon_host = NULL; int r; + /* If we are given a filename, parse the filename, with precedence given to + * filename encoded options */ + filename = qdict_get_try_str(options, "filename"); + if (filename) { + qemu_rbd_parse_filename(filename, options, &local_err); + if (local_err) { + r = -EINVAL; + error_propagate(errp, local_err); + goto exit; + } + } + opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort); qemu_opts_absorb_qdict(opts, options, &local_err); if (local_err) { @@ -665,6 +681,7 @@ failed_shutdown: failed_opts: qemu_opts_del(opts); g_free(mon_host); +exit: return r; }