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=-6.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 82905C433DF for ; Tue, 26 May 2020 16:51:00 +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 4619320776 for ; Tue, 26 May 2020 16:51:00 +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="V1WHWaCQ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4619320776 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]:44798 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jdcn5-0008CJ-9q for qemu-devel@archiver.kernel.org; Tue, 26 May 2020 12:50:59 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41536) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jdcez-0004qF-9a for qemu-devel@nongnu.org; Tue, 26 May 2020 12:42:37 -0400 Received: from us-smtp-1.mimecast.com ([205.139.110.61]:35763 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jdcey-0002yH-98 for qemu-devel@nongnu.org; Tue, 26 May 2020 12:42:36 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1590511355; 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=AumXH01F5gamBw2muKK3Go3fv2xAW1yMOQS1sMJTIHE=; b=V1WHWaCQPuAXKzqfwaQe+Dz4aaQP/qRgLhoM+B3R9gWj5h8sfD6dRbkTzh/TUXrL5tBxAD 34sTL+OckvSMMZI/GXtX7bEgmfYuanbLecDv7UH03wWBEx4j5eM5ddAzFGLvoOA2XxUaq6 XV0EFs26Cpo946oToEHLYciWEdEVTWo= 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-122-BR0aEYayOxWxOXbLk-fPIA-1; Tue, 26 May 2020 12:42:33 -0400 X-MC-Unique: BR0aEYayOxWxOXbLk-fPIA-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id CF84E107ACF9; Tue, 26 May 2020 16:42:31 +0000 (UTC) Received: from blue.redhat.com (ovpn-112-88.phx2.redhat.com [10.3.112.88]) by smtp.corp.redhat.com (Postfix) with ESMTP id 98ACD6E50D; Tue, 26 May 2020 16:42:28 +0000 (UTC) From: Eric Blake To: qemu-devel@nongnu.org Subject: [PULL 06/11] migration: forbid bitmap migration by generated node-name Date: Tue, 26 May 2020 11:42:06 -0500 Message-Id: <20200526164211.1569366-7-eblake@redhat.com> In-Reply-To: <20200526164211.1569366-1-eblake@redhat.com> References: <20200526164211.1569366-1-eblake@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=205.139.110.61; envelope-from=eblake@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/26 01:14:47 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, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN 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: Fam Zheng , Vladimir Sementsov-Ogievskiy , "open list:Block I/O path" , Juan Quintela , "Dr. David Alan Gilbert" , Stefan Hajnoczi , Andrey Shinkevich , John Snow Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Vladimir Sementsov-Ogievskiy It actually never worked with libvirt, as auto-generated names are different on source and destination. It's unsafe and useless to migrate by auto-generated node-names, so let's forbid it. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Andrey Shinkevich Reviewed-by: Eric Blake Message-Id: <20200521220648.3255-7-vsementsov@virtuozzo.com> [eblake: shorter subject line] Signed-off-by: Eric Blake --- migration/block-dirty-bitmap.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/migration/block-dirty-bitmap.c b/migration/block-dirty-bitmap.c index 7be1644b330a..47bc0f650c1e 100644 --- a/migration/block-dirty-bitmap.c +++ b/migration/block-dirty-bitmap.c @@ -285,6 +285,13 @@ static int add_bitmaps_to_list(BlockDriverState *bs, const char *bs_name) return -1; } + if (bs_name[0] == '#') { + error_report("Bitmap '%s' in a node with auto-generated " + "name '%s' can't be migrated", + bdrv_dirty_bitmap_name(bitmap), bs_name); + return -1; + } + FOR_EACH_DIRTY_BITMAP(bs, bitmap) { if (!bdrv_dirty_bitmap_name(bitmap)) { continue; -- 2.26.2