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_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 4E3F2C433DF for ; Sun, 14 Jun 2020 14:55:13 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 0EA8C206A4 for ; Sun, 14 Jun 2020 14:55:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="sazcY3c4" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0EA8C206A4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 7DF5C6B0032; Sun, 14 Jun 2020 10:55:12 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 78EA56B0037; Sun, 14 Jun 2020 10:55:12 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6A3396B0055; Sun, 14 Jun 2020 10:55:12 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0144.hostedemail.com [216.40.44.144]) by kanga.kvack.org (Postfix) with ESMTP id 50C516B0032 for ; Sun, 14 Jun 2020 10:55:12 -0400 (EDT) Received: from smtpin04.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 0B21C180AD81F for ; Sun, 14 Jun 2020 14:55:12 +0000 (UTC) X-FDA: 76928115264.04.floor75_5d15f3226dee Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin04.hostedemail.com (Postfix) with ESMTP id D923C800AB61 for ; Sun, 14 Jun 2020 14:55:11 +0000 (UTC) X-HE-Tag: floor75_5d15f3226dee X-Filterd-Recvd-Size: 4041 Received: from mail-pg1-f195.google.com (mail-pg1-f195.google.com [209.85.215.195]) by imf35.hostedemail.com (Postfix) with ESMTP for ; Sun, 14 Jun 2020 14:55:11 +0000 (UTC) Received: by mail-pg1-f195.google.com with SMTP id b5so5501274pgm.8 for ; Sun, 14 Jun 2020 07:55:11 -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; bh=78et8/D357auQlo0tCw3bdJP4HVAFW0j/pRZND2qTtE=; b=sazcY3c4vmvNP2euOvXd5CXPaq3kPKLH/MNh+gVDRpQaIKOaEWPeecO4JCEvIynp7S 0t30PpYebVU4RcPjQb4piVODuUru6rsiiaDv4NKUTvJ2Ek95EWHFOrYaFVJFW7W9R9HG LIExhntgTIPGQPln0XnelSkS7ZeWo1k30J7/rKDzwnwgm2wTJNr0Kcu2wl0ZH6FTTuP7 JyF7usF9uS3WCU0od9zMpfU0I8wK/fNb8cEpir0zaGrGl9sAUaYqkrKHQDRnjarODso/ THxm3iGHYQCz+t7A76OoxBEErKJnVgzLX6+iKTEC21Ar4vGHoEE/lTJhKHnMGWeyEf6b p4Gg== 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; bh=78et8/D357auQlo0tCw3bdJP4HVAFW0j/pRZND2qTtE=; b=qF7kKp2jEFZcNV0xfhiDViATkg4Rrt+geiWvwTnyOonNbuNsnruxp49SN8qYeATDJu 7Q5ai2NbrPONTxzw+jKeIxIoMjhDOhy2H50/B2s5TRGAIiARvR0u47x3U1Uo0lSZX5C/ Zw3wMRWgB1MmBjJ8D2vvhph0xPuQUL1nO4mjz1xAOL+PhJf4TK6dHV5nL8xcTtJeMw+s KzcVl1GEfkf4XeRnHa8/08gynZ1m5nlNCOUCG6Pq5aAdFVv3huz9S48ve0q59yuoKePx /3q/46uwhWtd+EX7lhFACKVr/p3sNdPOUkgxlazYBae3wxj/hGJDrZUCSO9deueqI1Bc rH+w== X-Gm-Message-State: AOAM531QIWhjT6dBmQEu4UUmXs6mPr6bpE94Zx+oNM0vFqOchEvtm09U nLc3fSTLqGcR1gKs+/wtkIM= X-Google-Smtp-Source: ABdhPJwob5y5LO2njY/GBTjC/Nb9xaivIHoaUJJmM7RQWU7OYld/epBeaS+a1qrdU1xmpEEEJKo52g== X-Received: by 2002:a62:2ccb:: with SMTP id s194mr19106321pfs.127.1592146510447; Sun, 14 Jun 2020 07:55:10 -0700 (PDT) Received: from localhost ([49.207.192.101]) by smtp.gmail.com with ESMTPSA id l195sm1332101pfd.18.2020.06.14.07.55.09 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Sun, 14 Jun 2020 07:55:09 -0700 (PDT) Date: Sun, 14 Jun 2020 20:25:07 +0530 From: afzal mohammed To: Arnd Bergmann Cc: Russell King - ARM Linux admin , Linus Walleij , "linux-kernel@vger.kernel.org" , Linux-MM , Linux ARM , Nicolas Pitre , Catalin Marinas , Will Deacon , Matthew Wilcox , Al Viro Subject: Re: [RFC 1/3] lib: copy_{from,to}_user using gup & kmap_atomic() Message-ID: <20200614145356.GA3134@afzalpc> References: <9e1de19f35e2d5e1d115c9ec3b7c3284b4a4e077.1591885760.git.afzal.mohd.ma@gmail.com> <20200612135538.GA13399@afzalpc> <20200613120432.GA5319@afzalpc> <20200614132143.GA599@afzalpc> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200614132143.GA599@afzalpc> X-Rspamd-Queue-Id: D923C800AB61 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam05 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000068, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hi, On Sun, Jun 14, 2020 at 06:51:43PM +0530, afzal mohammed wrote: > It is MB/s for copying one file to another via user space buffer, i.e. > the value coreutils 'dd' shows w/ status=progress (here it was busybox > 'dd', so instead it was enabling a compile time option) Just for correctness, status=progress is not required, it's there in the default 3rd line of coreutils 'dd' o/p Regards afzal