From nobody Thu Dec 18 13:24:57 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1602528783; cv=none; d=zohomail.com; s=zohoarc; b=LAzRGXcZ1Jw68TnG7bmb8H/B1QcJxccCpvE5bGmjvJxI6UpKDG651eOqsGmXIZWghLc8zK82ww79X3NiBcAf/9VmVtUQqeOE4lNTmpP0jFl0DkXA6dUAvUxGLcB5cwWWY1LVpYihQV7+8752AO1pK8HyzFzRbeRQB3WpjLKpA+I= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1602528783; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=u7bm674skGiXTOIOUgCjRtaAQ5TwmqJJ5o5uOKPqBfo=; b=O/culTRcmrgb7yt/tQpYeEmPduCnl9hnqVVe5lrclr2RinEyqufll/eRPkMxgzY1ZvR2XvsqCiaZr0AU/0KVKj9UJJOGprjtBsnMD3Qe3mVSMsoEZHkjG6keg5qtZTOjTg+HvYjrsVyE1BKzMD+fQB0wK6p3EmproXuDmgJpKzk= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1602528783714818.4163486344188; Mon, 12 Oct 2020 11:53:03 -0700 (PDT) Received: from localhost ([::1]:56310 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kS2wQ-00005Q-HT for importer@patchew.org; Mon, 12 Oct 2020 14:53:02 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:40330) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kS2a2-0005Mc-QP for qemu-devel@nongnu.org; Mon, 12 Oct 2020 14:30:03 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:20165) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kS2a0-0004JA-Ht for qemu-devel@nongnu.org; Mon, 12 Oct 2020 14:29:54 -0400 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-567-TKBAn-cyMvCA62Wz3loA-g-1; Mon, 12 Oct 2020 14:29:49 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 59A171062720; Mon, 12 Oct 2020 18:29:47 +0000 (UTC) Received: from localhost (ovpn-115-4.ams2.redhat.com [10.36.115.4]) by smtp.corp.redhat.com (Postfix) with ESMTP id E72816198C; Mon, 12 Oct 2020 18:29:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1602527391; 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=u7bm674skGiXTOIOUgCjRtaAQ5TwmqJJ5o5uOKPqBfo=; b=NFkgq7k0dO3xi6THIeAKXljP1CuQZs8ITBCe1vSGO1GAIcMeFeZ8rEgrFnc8o2aO88q0Pv 8V1HMZL5FLvZzW6B459rLVfTiFqLHbXyskchZpjf+3oFRGxkcI+UfS+ESdpI09bw2McRwc vw+KzZseMEij6E+xeJG8w+5Lk5bHEyE= X-MC-Unique: TKBAn-cyMvCA62Wz3loA-g-1 From: Stefan Hajnoczi To: Peter Maydell , qemu-devel@nongnu.org Subject: [PULL v2 28/30] block/io: bdrv_common_block_status_above: support bs == base Date: Mon, 12 Oct 2020 19:27:58 +0100 Message-Id: <20201012182800.157697-29-stefanha@redhat.com> In-Reply-To: <20201012182800.157697-1-stefanha@redhat.com> References: <20201012182800.157697-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=stefanha@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=216.205.24.124; envelope-from=stefanha@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/11 23:52:29 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -3 X-Spam_score: -0.4 X-Spam_bar: / X-Spam_report: (-0.4 / 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, MIME_BASE64_TEXT=1.741, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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 , Laurent Vivier , Thomas Huth , Vladimir Sementsov-Ogievskiy , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Eduardo Habkost , qemu-block@nongnu.org, Markus Armbruster , Coiby Xu , Max Reitz , Alberto Garcia , Stefan Hajnoczi , Cleber Rosa , Paolo Bonzini , Fam Zheng , "Dr. David Alan Gilbert" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" From: Vladimir Sementsov-Ogievskiy We are going to reuse bdrv_common_block_status_above in bdrv_is_allocated_above. bdrv_is_allocated_above may be called with include_base =3D=3D false and still bs =3D=3D base (for ex. from img_rebase= ()). So, support this corner case. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Kevin Wolf Reviewed-by: Eric Blake Reviewed-by: Alberto Garcia Message-id: 20200924194003.22080-4-vsementsov@virtuozzo.com Signed-off-by: Stefan Hajnoczi --- block/io.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/block/io.c b/block/io.c index 86f76d04bf..b616bc4ada 100644 --- a/block/io.c +++ b/block/io.c @@ -2355,9 +2355,13 @@ bdrv_co_common_block_status_above(BlockDriverState *= bs, BlockDriverState *p; int64_t eof =3D 0; =20 - assert(include_base || bs !=3D base); assert(!include_base || base); /* Can't include NULL base */ =20 + if (!include_base && bs =3D=3D base) { + *pnum =3D bytes; + return 0; + } + ret =3D bdrv_co_block_status(bs, want_zero, offset, bytes, pnum, map, = file); if (ret < 0 || *pnum =3D=3D 0 || ret & BDRV_BLOCK_ALLOCATED || bs =3D= =3D base) { return ret; --=20 2.26.2