From nobody Sun Feb 8 05:10:00 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=1574275698; cv=none; d=zoho.com; s=zohoarc; b=AVOv91cbx12Ldpb14J3KwJTX15MojkstWXMr6NCSLUtDG2jrDTiOftA8/xih5RxVRa63lLxlAbZtLngf25b1IvjrTTbSD2BiWLws6VLXzy24UKX1llLqtq97KjQxuo330ZV1/h+qxeyWyOZjf9hrXAL9Mkd7IcESc5nDrk5RwqQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1574275698; 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=j0X+odcGYorCdLxjadK+r+mItUPcO6tYTx2Cq5q8UdQ=; b=Wb0b2+MANcAR7Cb6eVGl3OVDGIWoMfv+CHVV/LY3s3k1o+OHIXm8TR0z8PSOnkTMjxztwU2uWR8axFtJlTskvlhPHgszXBT6PmHLdVE8N93pgcOo4hlxlesqYWALYlgxRKe0reKvqx+N3taRlNPFb1CZZ1pcm2KepnBl4MnUeXg= 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 1574275698761795.5174518042081; Wed, 20 Nov 2019 10:48:18 -0800 (PST) Received: from localhost ([::1]:33520 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iXV1U-00063E-Nw for importer@patchew.org; Wed, 20 Nov 2019 13:48:16 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:40005) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iXUyg-000433-30 for qemu-devel@nongnu.org; Wed, 20 Nov 2019 13:45:23 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iXUye-0005uz-Ll for qemu-devel@nongnu.org; Wed, 20 Nov 2019 13:45:22 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:31503 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 1iXUye-0005ut-I6 for qemu-devel@nongnu.org; Wed, 20 Nov 2019 13:45:20 -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-434-njVCwgDROnKllt4Y8pTOFg-1; Wed, 20 Nov 2019 13:45:17 -0500 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A54CE800054; Wed, 20 Nov 2019 18:45:16 +0000 (UTC) Received: from linux.fritz.box.com (unknown [10.36.118.18]) by smtp.corp.redhat.com (Postfix) with ESMTP id 18D091042B7D; Wed, 20 Nov 2019 18:45:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1574275520; 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=j0X+odcGYorCdLxjadK+r+mItUPcO6tYTx2Cq5q8UdQ=; b=DOm82FhGOalgjxsFuNI4YrolnJtzokNfpKEs3eoAPtOLY3LdDpfrnLKllYPET/CmPWQLmv +moXSTeTVl5ffmDkFu1hhS1NPo7ee4sVIPsqdD1nKdWb7fOwv9kVNEorv9kNhulT0UhmUw LqOaUK1YXLGNVctL+n+zQeRNfeOHp/c= From: Kevin Wolf To: qemu-block@nongnu.org Subject: [PATCH v2 1/6] block: bdrv_co_do_pwrite_zeroes: 64 bit 'bytes' parameter Date: Wed, 20 Nov 2019 19:44:56 +0100 Message-Id: <20191120184501.28159-2-kwolf@redhat.com> In-Reply-To: <20191120184501.28159-1-kwolf@redhat.com> References: <20191120184501.28159-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-MC-Unique: njVCwgDROnKllt4Y8pTOFg-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: Eric Blake Reviewed-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Alberto Garcia --- 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