From patchwork Mon Nov 11 16:02:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Max Reitz X-Patchwork-Id: 1192991 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.b="IoWLjt5m"; dkim-atps=neutral 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 ozlabs.org (Postfix) with ESMTPS id 47BbSM52vJz9sPV for ; Tue, 12 Nov 2019 03:10:09 +1100 (AEDT) Received: from localhost ([::1]:54616 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iUCGU-00084s-2m for incoming@patchwork.ozlabs.org; Mon, 11 Nov 2019 11:10:06 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:39014) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iUC9O-0007tr-5k for qemu-devel@nongnu.org; Mon, 11 Nov 2019 11:02:47 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iUC9M-0002l8-Vp for qemu-devel@nongnu.org; Mon, 11 Nov 2019 11:02:45 -0500 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:45960 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iUC9M-0002kq-Pv for qemu-devel@nongnu.org; Mon, 11 Nov 2019 11:02:44 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1573488164; 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=YBxYyLElSLzboh8cesGsJMPgXDGU3wNgSyzMbJz9L+E=; b=IoWLjt5mrSodjPqzR57cgGzTt0joOdUT1c6znlxSoJSUeXJErGOtbTtv3zi7X/mOOi7cLz +/+UgrABdvZJFQrkj4oSKxtpbFwzE6oFW0V/thUUvpGUq8eLGRLn2gjh3SzBGcjP9o5wNf l/pAm7j883hRDkoxVL2QGCtqJHuJ+I4= 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-307-kadYVi_PNMiRCla8N5kaKw-1; Mon, 11 Nov 2019 11:02:41 -0500 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 7267B911E8; Mon, 11 Nov 2019 16:02:40 +0000 (UTC) Received: from localhost (ovpn-117-116.ams2.redhat.com [10.36.117.116]) by smtp.corp.redhat.com (Postfix) with ESMTPS id E24DA608FB; Mon, 11 Nov 2019 16:02:39 +0000 (UTC) From: Max Reitz To: qemu-block@nongnu.org Subject: [PATCH for-5.0 v2 07/23] blkverify: Implement .bdrv_recurse_can_replace() Date: Mon, 11 Nov 2019 17:02:00 +0100 Message-Id: <20191111160216.197086-8-mreitz@redhat.com> In-Reply-To: <20191111160216.197086-1-mreitz@redhat.com> References: <20191111160216.197086-1-mreitz@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-MC-Unique: kadYVi_PNMiRCla8N5kaKw-1 X-Mimecast-Spam-Score: 0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 207.211.31.120 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 , Vladimir Sementsov-Ogievskiy , Alberto Garcia , qemu-devel@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Max Reitz Reviewed-by: Vladimir Sementsov-Ogievskiy --- block/blkverify.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/block/blkverify.c b/block/blkverify.c index 304b0a1368..0add3ab483 100644 --- a/block/blkverify.c +++ b/block/blkverify.c @@ -282,6 +282,20 @@ static bool blkverify_recurse_is_first_non_filter(BlockDriverState *bs, return bdrv_recurse_is_first_non_filter(s->test_file->bs, candidate); } +static bool blkverify_recurse_can_replace(BlockDriverState *bs, + BlockDriverState *to_replace) +{ + BDRVBlkverifyState *s = bs->opaque; + + /* + * blkverify quits the whole qemu process if there is a mismatch + * between bs->file->bs and s->test_file->bs. Therefore, we know + * know that both must match bs and we can recurse down to either. + */ + return bdrv_recurse_can_replace(bs->file->bs, to_replace) || + bdrv_recurse_can_replace(s->test_file->bs, to_replace); +} + static void blkverify_refresh_filename(BlockDriverState *bs) { BDRVBlkverifyState *s = bs->opaque; @@ -328,6 +342,7 @@ static BlockDriver bdrv_blkverify = { .is_filter = true, .bdrv_recurse_is_first_non_filter = blkverify_recurse_is_first_non_filter, + .bdrv_recurse_can_replace = blkverify_recurse_can_replace, }; static void bdrv_blkverify_init(void)