From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1EB8AC47255 for ; Mon, 11 May 2020 17:18:26 +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 D968B206D7 for ; Mon, 11 May 2020 17:18:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=igalia.com header.i=@igalia.com header.b="EYwBETts" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D968B206D7 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=igalia.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:37984 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jYC4O-0002EI-WE for qemu-devel@archiver.kernel.org; Mon, 11 May 2020 13:18:25 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:33334) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jYC3a-0001JM-Mm; Mon, 11 May 2020 13:17:34 -0400 Received: from fanzine.igalia.com ([178.60.130.6]:37149) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jYC3Y-0002r0-Dt; Mon, 11 May 2020 13:17:34 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Type:MIME-Version:Message-ID:Date:References:In-Reply-To:Subject:Cc:To:From; bh=pxWOO1JrtZ1jQ71eiYIPhjWSm1RyZwpEOewDmBN32M4=; b=EYwBETtshP6ydLE9NRkpF13G4ufatpHfa4PO4qg/7IC4TpLAp1Hdhd/UzATeb3bVUiCDwmgypAufDrdUT6hrZ35JQXsnPT1WUcF6BTYa/4ByMdLc4EuQvqvu38s5Uk96G8/DrM7LmqtvAdHI+Kw/BREXBSD8PK3Anb2SE8s3LGQDYgpSEOtAa3emAix+CPsw4ipsM/PpKJqTIGg6ZbDYjKkQRscNtHweFYHGTXl0E7fw/bgHSl4CSXaoULwjY1pQIzAJ3hg0qM9POFHCQFXnx0/vEEHG7dAZFlvh/inMEsxagI5IyYwcRZM/dJULVub2r6wMBbtTOYXSITQvzBRc0A==; Received: from maestria.local.igalia.com ([192.168.10.14] helo=mail.igalia.com) by fanzine.igalia.com with esmtps (Cipher TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim) id 1jYC3R-0001Wh-Ng; Mon, 11 May 2020 19:17:25 +0200 Received: from berto by mail.igalia.com with local (Exim) id 1jYC3R-0004Sp-EZ; Mon, 11 May 2020 19:17:25 +0200 From: Alberto Garcia To: Vladimir Sementsov-Ogievskiy , qemu-block@nongnu.org Subject: Re: [PATCH v3 05/17] block/io: support int64_t bytes in bdrv_co_do_pwrite_zeroes() In-Reply-To: <20200430111033.29980-6-vsementsov@virtuozzo.com> References: <20200430111033.29980-1-vsementsov@virtuozzo.com> <20200430111033.29980-6-vsementsov@virtuozzo.com> User-Agent: Notmuch/0.18.2 (http://notmuchmail.org) Emacs/24.4.1 (i586-pc-linux-gnu) Date: Mon, 11 May 2020 19:17:25 +0200 Message-ID: MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=178.60.130.6; envelope-from=berto@igalia.com; helo=fanzine.igalia.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/11 11:28:17 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x (no timestamps) [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN 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: kwolf@redhat.com, fam@euphon.net, integration@gluster.org, sheepdog@lists.wpkg.org, pavel.dovgaluk@ispras.ru, dillaman@redhat.com, qemu-devel@nongnu.org, sw@weilnetz.de, pl@kamp.de, ronniesahlberg@gmail.com, mreitz@redhat.com, den@openvz.org, vsementsov@virtuozzo.com, stefanha@redhat.com, namei.unix@gmail.com, pbonzini@redhat.com, jsnow@redhat.com, ari@tuxera.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Thu 30 Apr 2020 01:10:21 PM CEST, Vladimir Sementsov-Ogievskiy wrote: > compute 'int tail' via % 'int alignment' - safe tail = (offset + bytes) % alignment; both are int64_t, no chance of overflow here? Berto