From nobody Sun Feb 8 14:52:59 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.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; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zoho.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=1574258812; cv=none; d=zoho.com; s=zohoarc; b=Qo4UmxBE2aO4IcYwKjOb/seLTNY7WL+ZiqXLJBvkLLAu0D2Semlut/8X2vnNwSyPU+1r8VFE4H+5u7+riSMomwM/kVDMi0QXlPYp3o73zw5x6sQ8uq1WpznO4cipz/rlPsT+vKKAYzWinPkQtuQt28sZnmH8smA/f1Hlmov2QFY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1574258812; 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=CvE56udzdiFxJQ+oY8narTyNFfDLyHm1vvqTbdJj7/E=; b=han40LulhdKIEQ776yngUT2NqUTSfFTGtAZ0UWWkRE+dsxzz9mMl2o6NoA7XC+zAHyvQ207ZMQOYTXG+ptH82hfexoMcc5dv72pe8BV0jv6YgLqXYTFoRpYq7T3lt0r2PZVKNaxnOW0FFbT82Ny3i9HLyUBKJMcSLErdKV8U2ME= ARC-Authentication-Results: i=1; mx.zoho.com; dkim=fail; spf=pass (zoho.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 157425881201616.3720714423564; Wed, 20 Nov 2019 06:06:52 -0800 (PST) Received: from localhost ([::1]:58464 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iXQd8-0001sc-Sf for importer@patchew.org; Wed, 20 Nov 2019 09:06:50 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:47294) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iXQaF-0006Mk-Jy for qemu-devel@nongnu.org; Wed, 20 Nov 2019 09:03:52 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iXQaE-0000sO-Hp for qemu-devel@nongnu.org; Wed, 20 Nov 2019 09:03:51 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:25123 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 1iXQaE-0000s5-Ec for qemu-devel@nongnu.org; Wed, 20 Nov 2019 09:03:50 -0500 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-328-Y_ReeR6MNnSO7bts3Al6TA-1; Wed, 20 Nov 2019 09:03:46 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 211561005502; Wed, 20 Nov 2019 14:03:45 +0000 (UTC) Received: from linux.fritz.box.com (unknown [10.36.118.18]) by smtp.corp.redhat.com (Postfix) with ESMTP id D099C60493; Wed, 20 Nov 2019 14:03:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1574258629; 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=CvE56udzdiFxJQ+oY8narTyNFfDLyHm1vvqTbdJj7/E=; b=VEai6lSiGZiSfk4dxDUL1YUMQF4vevAGcXq2cEgcvrBVZgRaNRk52KGG+V/GBvsKZCxlTq WYnTlyfSc6ImGjUdnexFC384kAHNMkF6eaaVwyJQATy+OSYEHCZTlpExS12pXG8hScLJ+m o14H5y32SZR8PwXWYAkySgaLZNNvKQA= From: Kevin Wolf To: qemu-block@nongnu.org Subject: [PATCH 1/6] block: bdrv_co_do_pwrite_zeroes: 64 bit 'bytes' parameter Date: Wed, 20 Nov 2019 15:03:14 +0100 Message-Id: <20191120140319.1505-2-kwolf@redhat.com> In-Reply-To: <20191120140319.1505-1-kwolf@redhat.com> References: <20191120140319.1505-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-MC-Unique: Y_ReeR6MNnSO7bts3Al6TA-1 X-Mimecast-Spam-Score: 0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 205.139.110.120 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: kwolf@redhat.com, vsementsov@virtuozzo.com, qemu-devel@nongnu.org, mreitz@redhat.com, stefanha@redhat.com 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" bdrv_co_do_pwrite_zeroes() can already cope with maximum request sizes by calling the driver in a loop until everything is done. Make the small remaining change that is necessary to let it accept a 64 bit byte count. Signed-off-by: Kevin Wolf Reviewed-by: Alberto Garcia Reviewed-by: Eric Blake Reviewed-by: Vladimir Sementsov-Ogievskiy --- block/io.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/block/io.c b/block/io.c index f75777f5ea..003f4ea38c 100644 --- a/block/io.c +++ b/block/io.c @@ -42,7 +42,7 @@ =20 static void bdrv_parent_cb_resize(BlockDriverState *bs); static int coroutine_fn bdrv_co_do_pwrite_zeroes(BlockDriverState *bs, - int64_t offset, int bytes, BdrvRequestFlags flags); + int64_t offset, int64_t bytes, BdrvRequestFlags flags); =20 static void bdrv_parent_drained_begin(BlockDriverState *bs, BdrvChild *ign= ore, bool ignore_bds_parents) @@ -1730,7 +1730,7 @@ int coroutine_fn bdrv_co_preadv_part(BdrvChild *child, } =20 static int coroutine_fn bdrv_co_do_pwrite_zeroes(BlockDriverState *bs, - int64_t offset, int bytes, BdrvRequestFlags flags) + int64_t offset, int64_t bytes, BdrvRequestFlags flags) { BlockDriver *drv =3D bs->drv; QEMUIOVector qiov; @@ -1760,7 +1760,7 @@ static int coroutine_fn bdrv_co_do_pwrite_zeroes(Bloc= kDriverState *bs, assert(max_write_zeroes >=3D bs->bl.request_alignment); =20 while (bytes > 0 && !ret) { - int num =3D bytes; + int num =3D MIN(bytes, BDRV_REQUEST_MAX_BYTES); =20 /* Align request. Block drivers can expect the "bulk" of the requ= est * to be aligned, and that unaligned requests do not cross cluster --=20 2.20.1