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=-9.6 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 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 10075C4742C for ; Fri, 13 Nov 2020 21:24:45 +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 75B5B22252 for ; Fri, 13 Nov 2020 21:24:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="PkXwj7RR" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 75B5B22252 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:40086 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kdgYl-0007CN-E7 for qemu-devel@archiver.kernel.org; Fri, 13 Nov 2020 16:24:43 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:55788) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kdgRn-00024r-K6 for qemu-devel@nongnu.org; Fri, 13 Nov 2020 16:17:31 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:58030) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kdgRj-0005Qt-Ri for qemu-devel@nongnu.org; Fri, 13 Nov 2020 16:17:31 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1605302246; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=OjbYSUyEkl7ynwQOyHy83UdnMetYOmxrv+n5LDxoPJw=; b=PkXwj7RRL87iJJPs4X9PnOtKxa4Qhiqfvv+z1MU4nh6PBZKlzH3FJYGinxx/ZPqWAPdLxU Xt1M9mFDCKw0XDZobcxRXVSNovrD+xThP/QkqP5DUzunEoubcijMzAQcR+rQoCRhMvHO98 uAWWE9eNz25EmeT7TWplHDJlRNyQEAU= 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-256-xfDyGr5HP4ehFJzb85BCiA-1; Fri, 13 Nov 2020 16:17:24 -0500 X-MC-Unique: xfDyGr5HP4ehFJzb85BCiA-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 7761480F041; Fri, 13 Nov 2020 21:17:23 +0000 (UTC) Received: from localhost (ovpn-114-96.ams2.redhat.com [10.36.114.96]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 0FD42100164C; Fri, 13 Nov 2020 21:17:22 +0000 (UTC) From: Max Reitz To: qemu-block@nongnu.org Subject: [PATCH 1/3] quorum: Require WRITE perm with rewrite-corrupted Date: Fri, 13 Nov 2020 22:17:16 +0100 Message-Id: <20201113211718.261671-2-mreitz@redhat.com> In-Reply-To: <20201113211718.261671-1-mreitz@redhat.com> References: <20201113211718.261671-1-mreitz@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=mreitz@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII" Received-SPF: pass client-ip=63.128.21.124; envelope-from=mreitz@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/11/12 16:09:27 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_H5=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 , Alberto Garcia , qemu-devel@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Using rewrite-corrupted means quorum may issue writes to its children just from receiving read requests from its parents. Thus, it must take the WRITE permission when rewrite-corrupted is used. Signed-off-by: Max Reitz --- block/quorum.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/block/quorum.c b/block/quorum.c index b70d365ba9..01e49e94a3 100644 --- a/block/quorum.c +++ b/block/quorum.c @@ -1195,7 +1195,12 @@ static void quorum_child_perm(BlockDriverState *bs, BdrvChild *c, uint64_t perm, uint64_t shared, uint64_t *nperm, uint64_t *nshared) { + BDRVQuorumState *s = bs->opaque; + *nperm = perm & DEFAULT_PERM_PASSTHROUGH; + if (s->rewrite_corrupted) { + *nperm |= BLK_PERM_WRITE; + } /* * We cannot share RESIZE or WRITE, as this would make the -- 2.28.0