From nobody Sun Apr 13 20:56:31 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1630510888361188.8578053408961; Wed, 1 Sep 2021 08:41:28 -0700 (PDT) Received: from localhost ([::1]:52292 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mLSMh-0002ZJ-BO for importer@patchew.org; Wed, 01 Sep 2021 11:41:27 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50074) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mLRzp-0005p1-IX for qemu-devel@nongnu.org; Wed, 01 Sep 2021 11:17:49 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:55120) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mLRzj-00045D-FB for qemu-devel@nongnu.org; Wed, 01 Sep 2021 11:17:49 -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-351-uu3qUgqoNBKSSCadxzyeXw-1; Wed, 01 Sep 2021 11:17:40 -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 7396B107ACF2; Wed, 1 Sep 2021 15:17:39 +0000 (UTC) Received: from localhost (unknown [10.39.193.250]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 1072560C9F; Wed, 1 Sep 2021 15:17:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1630509461; 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=82PouVtLFsB8o+9sE1/moPvstgwn3nbqIqyeZsCCMPI=; b=MFgBWNcT7NW1rzGbWgzRngTyPvjJrRVw2aFPWSoN66AI0eStMNjFqrQ67ltktZE5Gx9Qmg ug8S26rh1PENCemMtJQJlwMCjCOmYeuFFjqGLQqp1uDQMWJ85DQk/ze1/4YqIsVviKge3n KLi3NYp6t/QHfZx5M255B7gZYdAW9y8= X-MC-Unique: uu3qUgqoNBKSSCadxzyeXw-1 From: Hanna Reitz To: qemu-block@nongnu.org Subject: [PULL 36/56] block/copy-before-write: cbw_init(): use file child after attaching Date: Wed, 1 Sep 2021 17:15:59 +0200 Message-Id: <20210901151619.689075-37-hreitz@redhat.com> In-Reply-To: <20210901151619.689075-1-hreitz@redhat.com> References: <20210901151619.689075-1-hreitz@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=hreitz@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=hreitz@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.392, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-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 , Peter Maydell , Hanna Reitz , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1630510888862100001 Content-Type: text/plain; charset="utf-8" From: Vladimir Sementsov-Ogievskiy In the next commit we'll get rid of source argument of cbw_init(). Prepare to it now, to make next commit simpler: move the code block that uses source below attaching the child and use bs->file->bs instead of source variable. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Max Reitz Message-Id: <20210824083856.17408-17-vsementsov@virtuozzo.com> Signed-off-by: Hanna Reitz --- block/copy-before-write.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/block/copy-before-write.c b/block/copy-before-write.c index d7f1833efa..4858dcf8ff 100644 --- a/block/copy-before-write.c +++ b/block/copy-before-write.c @@ -149,13 +149,6 @@ static int cbw_init(BlockDriverState *bs, BlockDriverS= tate *source, { BDRVCopyBeforeWriteState *s =3D bs->opaque; =20 - bs->total_sectors =3D source->total_sectors; - bs->supported_write_flags =3D BDRV_REQ_WRITE_UNCHANGED | - (BDRV_REQ_FUA & source->supported_write_flags); - bs->supported_zero_flags =3D BDRV_REQ_WRITE_UNCHANGED | - ((BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP | BDRV_REQ_NO_FALLBACK) & - source->supported_zero_flags); - bdrv_ref(target); s->target =3D bdrv_attach_child(bs, target, "target", &child_of_bds, BDRV_CHILD_DATA, errp); @@ -173,6 +166,13 @@ static int cbw_init(BlockDriverState *bs, BlockDriverS= tate *source, return -EINVAL; } =20 + bs->total_sectors =3D bs->file->bs->total_sectors; + bs->supported_write_flags =3D BDRV_REQ_WRITE_UNCHANGED | + (BDRV_REQ_FUA & bs->file->bs->supported_write_flags); + bs->supported_zero_flags =3D BDRV_REQ_WRITE_UNCHANGED | + ((BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP | BDRV_REQ_NO_FALLBACK) & + bs->file->bs->supported_zero_flags); + s->bcs =3D block_copy_state_new(bs->file, s->target, false, compress, = errp); if (!s->bcs) { error_prepend(errp, "Cannot create block-copy-state: "); --=20 2.31.1