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=-8.3 required=3.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 35EC1C433E0 for ; Thu, 30 Jul 2020 10:31:05 +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 05E662075F for ; Thu, 30 Jul 2020 10:31:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="q710I7yP" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 05E662075F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:53718 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k15q4-0007jg-9x for qemu-devel@archiver.kernel.org; Thu, 30 Jul 2020 06:31:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50054) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k15on-0006hv-Rs; Thu, 30 Jul 2020 06:29:45 -0400 Received: from mail-pl1-x644.google.com ([2607:f8b0:4864:20::644]:39575) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1k15om-0005YY-7f; Thu, 30 Jul 2020 06:29:45 -0400 Received: by mail-pl1-x644.google.com with SMTP id b9so13671312plx.6; Thu, 30 Jul 2020 03:29:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=Jy+ha8CYOjsmo0wOQekdGO8fQhvKZDyH8gNMZVIBGiw=; b=q710I7yPt3F2WRpWqehVkhMvtn3ttTdC9Lp/CN6VT+XWerVLRVmiDUFjqw4d7BVkxb qy8bcPKl5E/zbXmHBETQ9H+HuVDNS0xxEqVgCvpDjcvJ+2PIUf+uIt1+QeKGdjp6F+sf SAuMoG+4fYYgATAOs0qRozmib3jJkk5Rm0HXDlVXZgV6KIHcKx1I+cmeKokcbYfwPrm+ rW+QfUzmjQ40gsxuYdcht7V3fsDD+SJ6Q/Ft/b8g0f/dGwkYlghaV4azZNQcVeENzGIg uLokaKbkbxIqv1hh4RPOcLUErG9b28Q4nUkI14rjdhzaQQhkRjlXG95oKHCXUqJBnXya 6J7Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=Jy+ha8CYOjsmo0wOQekdGO8fQhvKZDyH8gNMZVIBGiw=; b=HasA0MJRIXOtY3YVx8hbuK9F4o/greSJ+bKRX77tnxSxWfLT+BGuzeajDTgAZ0plYP CHpEzPHb/XMbG5vMl4mJ2+fv4Yfgws2EjCM+/4Vxic6v2K1/HUjRMgTecOcSF37M8Amt gPmnutAovC+bstXqqj6qV5/1m0/DssXjbAbik70kPp/JIIrNimNEzupf4pW5yctwUPk6 uIlIK9G1oe4L0ncqEPZufx3W+8IJwCjENCPLYC/aDSQeqYXxSDjE1YdOtXIi2UpKnshx sPbisJXd5rXDHRhBHN0DluFQdvkACKgKefBC62DlqkFhR871IY3Q5zRnjiemQmdVr+7B d+Hw== X-Gm-Message-State: AOAM533XFW49b42xQtpu2jpPLvR1wVWbYDtDEx03fbTTmP7gP6HZZ63A mi1XVLkXKer0trKa3piRpEg= X-Google-Smtp-Source: ABdhPJy/TpFqrJjlxsM1gmKB8wPLEDK6mHfs8qll3nEPGbOjk+98r8ep/i/EP9z73geNa4AI8zoX8g== X-Received: by 2002:a17:90b:358e:: with SMTP id mm14mr14846648pjb.54.1596104982055; Thu, 30 Jul 2020 03:29:42 -0700 (PDT) Received: from localhost ([211.108.35.36]) by smtp.gmail.com with ESMTPSA id q6sm5486701pfg.76.2020.07.30.03.29.40 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Thu, 30 Jul 2020 03:29:41 -0700 (PDT) Date: Thu, 30 Jul 2020 19:29:39 +0900 From: Minwoo Im To: Klaus Jensen Subject: Re: [PATCH v2 15/16] hw/block/nvme: use preallocated qsg/iov in nvme_dma_prp Message-ID: <20200730102939.bw2hpdfqzmvo3v5z@localhost.localdomain> References: <20200729220638.344477-1-its@irrelevant.dk> <20200729220638.344477-16-its@irrelevant.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20200729220638.344477-16-its@irrelevant.dk> User-Agent: NeoMutt/20171215 Received-SPF: pass client-ip=2607:f8b0:4864:20::644; envelope-from=minwoo.im.dev@gmail.com; helo=mail-pl1-x644.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. 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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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: Fam Zheng , Kevin Wolf , qemu-block@nongnu.org, Klaus Jensen , qemu-devel@nongnu.org, Maxim Levitsky , Andrzej Jakowski , Keith Busch , Max Reitz Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 20-07-30 00:06:37, Klaus Jensen wrote: > From: Klaus Jensen > > Since clean up of the request qsg/iov is now always done post-use, there > is no need to use a stack-allocated qsg/iov in nvme_dma_prp. > > Signed-off-by: Klaus Jensen > Acked-by: Keith Busch > Reviewed-by: Maxim Levitsky Reviewed-by: Minwoo Im