From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <SRS0=uOHI=ZR=lists.ozlabs.org=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@kernel.org>
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=-2.2 required=3.0 tests=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 47D68C432C3
	for <linuxppc-dev@archiver.kernel.org>; Mon, 25 Nov 2019 00:39:47 +0000 (UTC)
Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2])
	(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 EAC4920748
	for <linuxppc-dev@archiver.kernel.org>; Mon, 25 Nov 2019 00:39:46 +0000 (UTC)
DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EAC4920748
Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=zeniv.linux.org.uk
Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org
Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])
	by lists.ozlabs.org (Postfix) with ESMTP id 47Lp8J4dQBzDqXb
	for <linuxppc-dev@archiver.kernel.org>; Mon, 25 Nov 2019 11:39:44 +1100 (AEDT)
Authentication-Results: lists.ozlabs.org; spf=none (no SPF record)
 smtp.mailfrom=ftp.linux.org.uk (client-ip=195.92.253.2;
 helo=zeniv.linux.org.uk; envelope-from=viro@ftp.linux.org.uk;
 receiver=<UNKNOWN>)
Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none)
 header.from=zeniv.linux.org.uk
Received: from ZenIV.linux.org.uk (zeniv.linux.org.uk [195.92.253.2])
 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
 key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256)
 (No client certificate requested)
 by lists.ozlabs.org (Postfix) with ESMTPS id 47Lp6M50bzzDqXB
 for <linuxppc-dev@lists.ozlabs.org>; Mon, 25 Nov 2019 11:38:03 +1100 (AEDT)
Received: from viro by ZenIV.linux.org.uk with local (Exim 4.92.3 #3 (Red Hat
 Linux)) id 1iZ2NY-0003dl-RU; Mon, 25 Nov 2019 00:37:24 +0000
Date: Mon, 25 Nov 2019 00:37:24 +0000
From: Al Viro <viro@zeniv.linux.org.uk>
To: Aleksa Sarai <cyphar@cyphar.com>
Subject: Re: [PATCH v17 11/13] open: introduce openat2(2) syscall
Message-ID: <20191125003724.GG4203@ZenIV.linux.org.uk>
References: <20191117011713.13032-1-cyphar@cyphar.com>
 <20191117011713.13032-12-cyphar@cyphar.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20191117011713.13032-12-cyphar@cyphar.com>
User-Agent: Mutt/1.12.1 (2019-06-15)
X-BeenThere: linuxppc-dev@lists.ozlabs.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.lists.ozlabs.org>
List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>,
 <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe>
List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev/>
List-Post: <mailto:linuxppc-dev@lists.ozlabs.org>
List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help>
List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>,
 <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe>
Cc: Song Liu <songliubraving@fb.com>, linux-ia64@vger.kernel.org,
 linux-doc@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
 Rasmus Villemoes <linux@rasmusvillemoes.dk>,
 Alexei Starovoitov <ast@kernel.org>, linux-kernel@vger.kernel.org,
 David Howells <dhowells@redhat.com>, linux-kselftest@vger.kernel.org,
 sparclinux@vger.kernel.org, containers@lists.linux-foundation.org,
 linux-api@vger.kernel.org, Shuah Khan <shuah@kernel.org>,
 linux-arch@vger.kernel.org, linux-s390@vger.kernel.org,
 Tycho Andersen <tycho@tycho.ws>, Daniel Borkmann <daniel@iogearbox.net>,
 Jonathan Corbet <corbet@lwn.net>, Jiri Olsa <jolsa@redhat.com>,
 linux-sh@vger.kernel.org,
 Alexander Shishkin <alexander.shishkin@linux.intel.com>,
 Ingo Molnar <mingo@redhat.com>, linux-arm-kernel@lists.infradead.org,
 Yonghong Song <yhs@fb.com>, linux-mips@vger.kernel.org,
 Andrii Nakryiko <andriin@fb.com>, bpf@vger.kernel.org,
 linux-xtensa@linux-xtensa.org, Kees Cook <keescook@chromium.org>,
 Arnd Bergmann <arnd@arndb.de>, Jann Horn <jannh@google.com>,
 linuxppc-dev@lists.ozlabs.org, dev@opencontainers.org,
 linux-m68k@lists.linux-m68k.org, Andy Lutomirski <luto@kernel.org>,
 Shuah Khan <skhan@linuxfoundation.org>, Namhyung Kim <namhyung@kernel.org>,
 David Drysdale <drysdale@google.com>, Christian Brauner <christian@brauner.io>,
 "J. Bruce Fields" <bfields@fieldses.org>, libc-alpha@sourceware.org,
 Aleksa Sarai <asarai@suse.de>, linux-parisc@vger.kernel.org,
 netdev@vger.kernel.org, Chanho Min <chanho.min@lge.com>,
 Jeff Layton <jlayton@kernel.org>, Oleg Nesterov <oleg@redhat.com>,
 Eric Biederman <ebiederm@xmission.com>, linux-alpha@vger.kernel.org,
 linux-fsdevel@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>,
 Linus Torvalds <torvalds@linux-foundation.org>,
 Martin KaFai Lau <kafai@fb.com>
Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org
Sender: "Linuxppc-dev"
 <linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org>

On Sun, Nov 17, 2019 at 12:17:11PM +1100, Aleksa Sarai wrote:

> +/* how->upgrade flags for openat2(2). */
> +/* First bit is reserved for a future UPGRADE_NOEXEC flag. */
> +#define UPGRADE_NOREAD		0x02 /* Block re-opening with MAY_READ. */
> +#define UPGRADE_NOWRITE		0x04 /* Block re-opening with MAY_WRITE. */

I'd drop that chunk, for the lack of ->upgrade...