From patchwork Fri Apr 24 12:54:43 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Wolf X-Patchwork-Id: 11507809 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A2AB813B2 for ; Fri, 24 Apr 2020 12:56:40 +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 798B020706 for ; Fri, 24 Apr 2020 12:56:40 +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="dtV07xmQ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 798B020706 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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:35692 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jRxsl-0001Sz-Iu for patchwork-qemu-devel@patchwork.kernel.org; Fri, 24 Apr 2020 08:56:39 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:42376) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jRxrM-0006v9-8n for qemu-devel@nongnu.org; Fri, 24 Apr 2020 08:55:13 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.90_1) (envelope-from ) id 1jRxrL-0003Ul-Ph for qemu-devel@nongnu.org; Fri, 24 Apr 2020 08:55:11 -0400 Received: from us-smtp-2.mimecast.com ([205.139.110.61]:46915 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 1jRxrL-0003Qe-Bg for qemu-devel@nongnu.org; Fri, 24 Apr 2020 08:55:11 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1587732910; 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=bEZSidTlM5sWhGSDi1x5gGTI78qMhvnbj3Im+wiCGa8=; b=dtV07xmQikhQi8nyThatySmWkI6iKVQ0FtV+Q3Tk2KaU9QcR/Tt9sslzRE3oBC8jsI1wtP T7J5GSeRgI7gAM3vnjDcngYGo/pQV5BqoyNQNvo/dzQJSzvL7UMFylJ0zuf/MnrgEMJ9Ai hW+yfQxTXiPOUs0mSdXfUbE8Dyvrnpc= 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-174-VywEhv3CPDOdAzvyh3y3hg-1; Fri, 24 Apr 2020 08:55:04 -0400 X-MC-Unique: VywEhv3CPDOdAzvyh3y3hg-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 2D12B835B40; Fri, 24 Apr 2020 12:55:03 +0000 (UTC) Received: from linux.fritz.box.com (ovpn-114-114.ams2.redhat.com [10.36.114.114]) by smtp.corp.redhat.com (Postfix) with ESMTP id A66616084A; Fri, 24 Apr 2020 12:55:01 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Subject: [PATCH v7 05/10] raw-format: Support BDRV_REQ_ZERO_WRITE for truncate Date: Fri, 24 Apr 2020 14:54:43 +0200 Message-Id: <20200424125448.63318-6-kwolf@redhat.com> In-Reply-To: <20200424125448.63318-1-kwolf@redhat.com> References: <20200424125448.63318-1-kwolf@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 Received-SPF: pass client-ip=205.139.110.61; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/04/24 02:57:59 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Received-From: 205.139.110.61 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: kwolf@redhat.com, vsementsov@virtuozzo.com, berto@igalia.com, qemu-devel@nongnu.org, mreitz@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" The raw format driver can simply forward the flag and let its bs->file child take care of actually providing the zeros. Signed-off-by: Kevin Wolf Reviewed-by: Max Reitz Reviewed-by: Eric Blake Reviewed-by: Vladimir Sementsov-Ogievskiy --- block/raw-format.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/block/raw-format.c b/block/raw-format.c index 3465c9a865..351f2d91c6 100644 --- a/block/raw-format.c +++ b/block/raw-format.c @@ -387,7 +387,7 @@ static int coroutine_fn raw_co_truncate(BlockDriverState *bs, int64_t offset, s->size = offset; offset += s->offset; - return bdrv_co_truncate(bs->file, offset, exact, prealloc, 0, errp); + return bdrv_co_truncate(bs->file, offset, exact, prealloc, flags, errp); } static void raw_eject(BlockDriverState *bs, bool eject_flag) @@ -445,6 +445,8 @@ static int raw_open(BlockDriverState *bs, QDict *options, int flags, bs->supported_zero_flags = BDRV_REQ_WRITE_UNCHANGED | ((BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP | BDRV_REQ_NO_FALLBACK) & bs->file->bs->supported_zero_flags); + bs->supported_truncate_flags = bs->file->bs->supported_truncate_flags & + BDRV_REQ_ZERO_WRITE; if (bs->probed && !bdrv_is_read_only(bs)) { bdrv_refresh_filename(bs->file->bs);