Received: by 2002:a25:1985:0:0:0:0:0 with SMTP id 127csp4402729ybz;
        Mon, 20 Apr 2020 23:14:24 -0700 (PDT)
X-Google-Smtp-Source: APiQypIcGPb51Ut1E0fGIS0d6rFJ6Gv9lfmV8UOkkyMYzXAyePJVPRE+3ddqqmPKAOnb3TaV+9In
X-Received: by 2002:a17:906:a2d3:: with SMTP id by19mr19942993ejb.370.1587449664283;
        Mon, 20 Apr 2020 23:14:24 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; t=1587449664; cv=none;
        d=google.com; s=arc-20160816;
        b=SXKRzBaNcyPUffSsz5lkmvVBeA/NGlG2NArJBU8LPdPvJkwIE0HqzGjbNZ/QLZ6QDJ
         tSls0jYjOX+iOkeLfx9KRnFDc21TGVdCvPt8BJKFV5jSU16ApD1mka9m8tVhG8j1yS2i
         uy9iAiAs7MiplrRwqcNFBkzNuzdamg1p3BpnOJplzuAzi7fZ+z0XJruzcILM5+F/qUMv
         8FIZRlWkal+CsCvmBqZSRi8ikRHx52qWj9TLAqcNmxbSoBMpdC4d2s7Uah4XXbyQ4V1u
         uCBGA4eMXgibEvkYGKx6HtpxIjX0F8znLA7zYPAqCHWELaJnoehwBHFxGNWAaxRdwOo8
         h5gA==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=list-id:precedence:sender:content-transfer-encoding:mime-version
         :message-id:date:subject:cc:to:from:dkim-signature;
        bh=yfnafnC/G+NL8NZBzhuT2oQpPb7OuOoFw6goIf8w6jc=;
        b=nTRhDKm3qg6x5jKCGxTdhsbKpSM+roKcfJkOlwo5nyNsIlJd78Yw37kWw1jzj2XQFs
         AGBu6WZZMC5m6iG1lAoY2TbUksZRuImNELmEYNz/W+aGkgJKRxNb8DT1gi8DGLGItIhY
         ySjn+AL1xY5ObhGk5ROL2XbetsxrbMxGSCG21MiynydUnDMcygHHOWxia6gz9ePyE/sG
         PG8pwHvTkACb7sy4DEbz5qTSHW+V/LVfTTeq1+GNhX1eHphMAEGAOD2tNLk4zuIlTPMg
         WFw8eivgxPQcvgLljF1KOYfoH6TTAMRBts+68y/WjDYYQEOu93k/eKYyGKiJdgq/7eGi
         q1Mw==
ARC-Authentication-Results: i=1; mx.google.com;
       dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=BpJFGuGg;
       spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18])
        by mx.google.com with ESMTP id d17si944791ejw.87.2020.04.20.23.13.44;
        Mon, 20 Apr 2020 23:14:24 -0700 (PDT)
Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Authentication-Results: mx.google.com;
       dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=BpJFGuGg;
       spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1726809AbgDUGMe (ORCPT <rfc822;1dalishi1@gmail.com> + 99 others);
        Tue, 21 Apr 2020 02:12:34 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56506 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL)
        by vger.kernel.org with ESMTP id S1725902AbgDUGMd (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Tue, 21 Apr 2020 02:12:33 -0400
Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 98DBEC061A10;
        Mon, 20 Apr 2020 23:12:33 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
        d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding:
        MIME-Version:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:
        Content-ID:Content-Description:In-Reply-To:References;
        bh=yfnafnC/G+NL8NZBzhuT2oQpPb7OuOoFw6goIf8w6jc=; b=BpJFGuGgi3bzpp4oPMe8wsspac
        LztnpfqPUHxQ1JdI86MQp2LOPKDsU05frLrjjuKHxfJtWgPahNMYvoCNkvcoid4cXBdHzR7IBa4W+
        8rqS0Px3MVVgN5GvJcr5I894+/3gtQA6DAeOmDk9wwm5YdljNJVybHYXPALrKCP+YdsD6PtSdf8/o
        KiBzdhQhOCmYl8cZyG1FPz7gNVFBXW8ox79sLsjvdAYL306WiEevIRHZfNTgfZFT+1cQsVEbhhVpL
        zHHn2mdrmWZl6K11GYpzcoXmRC5We2NVK7uyI4n2XJu5v1feRSD1gKcCFDXOsveuoI994Jyh27RX9
        O5JF4f5g==;
Received: from [2001:4bb8:191:e12c:292e:7dec:cf13:becd] (helo=localhost)
        by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux))
        id 1jQm8y-0000HF-80; Tue, 21 Apr 2020 06:12:28 +0000
From:   Christoph Hellwig <hch@lst.de>
To:     Stefan Haberland <sth@linux.ibm.com>,
        Jan Hoeppner <hoeppner@linux.ibm.com>,
        Jens Axboe <axboe@kernel.dk>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        Vasily Gorbik <gor@linux.ibm.com>,
        Christian Borntraeger <borntraeger@de.ibm.com>
Cc:     linux-s390@vger.kernel.org, linux-block@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: stop using ioctl_by_bdev in the s390 DASD driver
Date:   Tue, 21 Apr 2020 08:12:23 +0200
Message-Id: <20200421061226.33731-1-hch@lst.de>
X-Mailer: git-send-email 2.26.1
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
X-SRS-Rewrite: SMTP reverse-path rewritten from <hch@infradead.org> by bombadil.infradead.org. See http://www.infradead.org/rpr.html
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Hi Jens and DASD maintainers,

can you take a look at this series, which stops the DASD driver from
issuing ioctls from kernel space, in preparation of removing
ioctl_by_bdev.  I don't really like the new s390-only method, but short
of forcing the dasd driver to be built into the kernel I can't think of
anything better.  But maybe the s390 maintainers are fine with forcing
the DASD driver to be built in, in which case we could go down that
route?