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=-2.1 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, USER_AGENT_SANE_1 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 3BB5AC0650F for ; Tue, 6 Aug 2019 01:20:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 093C2214C6 for ; Tue, 6 Aug 2019 01:20:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="I4hS4PEo" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731219AbfHFBUd (ORCPT ); Mon, 5 Aug 2019 21:20:33 -0400 Received: from mail-pf1-f195.google.com ([209.85.210.195]:45434 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728851AbfHFBUd (ORCPT ); Mon, 5 Aug 2019 21:20:33 -0400 Received: by mail-pf1-f195.google.com with SMTP id r1so40527348pfq.12; Mon, 05 Aug 2019 18:20:33 -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=mtYMlQz5eR4+kIe+tAhZIY/OAiGfRw2YuZyhkg6PTbo=; b=I4hS4PEoJyvL+rw1aye+bkuNyFTmZHeIiI7RFxBXJ0CuNP49MtEx6c4dDp0dM/tsx/ htvzfDxZ5r+0xq/giBKycsgk0ooQTnliw8jAdM/W7Q3ZOPIXKO2qQyyIEZllNw9fCaCK AFdoMHbbELxkIctqol+apII3pU0v0VXRJ+BZTJNcArgxrMpmPImidiNKJGa2PwyGiGNv o8knT7XYXIG+Goz56jLAprXlNR6Ro/Kzov23naZj39nZRkay4wQSSRKGepoZcGaR4LWM AS12+SoRSLzpL24lbVcgQ/5ahDrIgIt89rGuB5PPO3/lXQeKGmqNafdrVjeefbqsXOSG JgRg== 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=mtYMlQz5eR4+kIe+tAhZIY/OAiGfRw2YuZyhkg6PTbo=; b=BRp0WiGNesg3UtanXmlWzRTp0wUgepVuHJD5ipbkYbAuGeU+B3WI2VEl+GIBxLCZsa ArAXwkRZFLLIVz7ssszBnxKglfIEpTZrXBgPSH7vMkr4bOmRLmt0K2C/tBwNfZGhXdWm qr2hJNEAfQJ+jk8ktNwvet3JQOmZK7dmj5CP7ODzUTbHWsCGL/tn4z74NH+NRlcWZF7t SoUuwqTLR8/xAmrlHksL3VytZFTKtZpyztpUNqHUavTKTQsKuuC/XevxP3zMts1foK09 v1BBbZR27gUcEz1sIkmOOUt0ZVXUovXkpg/4ap5rdWsP82g4V6cemU4uEdWEsK8cETCJ j8IQ== X-Gm-Message-State: APjAAAWmpkRS6UE8gdCPvT4TcblrdS+ChN4AOhV2IFmqeCT+MHHkRZm2 BEu6eJdj01Ffo+rRTjoTmQQ= X-Google-Smtp-Source: APXvYqyk8tVOqj3JMVpCjtlfaOGnmhUXY3kE6uE0j7jKcIcNic1rF0xLGvreX1yB+YVxBYd2ICFGvQ== X-Received: by 2002:a62:63c7:: with SMTP id x190mr842306pfb.181.1565054432856; Mon, 05 Aug 2019 18:20:32 -0700 (PDT) Received: from localhost ([175.223.3.169]) by smtp.gmail.com with ESMTPSA id b3sm101609286pfp.65.2019.08.05.18.20.30 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Mon, 05 Aug 2019 18:20:31 -0700 (PDT) Date: Tue, 6 Aug 2019 10:20:27 +0900 From: Sergey Senozhatsky To: Al Viro Cc: Sergey Senozhatsky , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Chris Wilson , David Howells , Christoph Hellwig , David Airlie , Daniel Vetter , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: Re: [PATCHv2 2/3] i915: convert to new mount API Message-ID: <20190806012027.GA6149@jagdpanzerIV> References: <20190805160307.5418-1-sergey.senozhatsky@gmail.com> <20190805160307.5418-3-sergey.senozhatsky@gmail.com> <20190805181255.GH1131@ZenIV.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190805181255.GH1131@ZenIV.linux.org.uk> User-Agent: Mutt/1.12.1 (2019-06-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On (08/05/19 19:12), Al Viro wrote: [..] > On Tue, Aug 06, 2019 at 01:03:06AM +0900, Sergey Senozhatsky wrote: > > tmpfs does not set ->remount_fs() anymore and its users need > > to be converted to new mount API. > > Could you explain why the devil do you bother with remount at all? I would redirect this question to i915 developers. As far as I know i915 performance suffers with huge pages enabled. > Why not pass the right options when mounting the damn thing? vfs_kern_mount()? It still requires struct file_system_type, which we need to get and put. -ss