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=-0.8 required=3.0 tests=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 0431CC10DCE for ; Fri, 6 Mar 2020 11:42:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D2D062072A for ; Fri, 6 Mar 2020 11:42:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726650AbgCFLm1 (ORCPT ); Fri, 6 Mar 2020 06:42:27 -0500 Received: from albireo.enyo.de ([37.24.231.21]:57960 "EHLO albireo.enyo.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725827AbgCFLm0 (ORCPT ); Fri, 6 Mar 2020 06:42:26 -0500 Received: from [172.17.203.2] (helo=deneb.enyo.de) by albireo.enyo.de with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) id 1jABMw-00028i-VZ; Fri, 06 Mar 2020 11:42:18 +0000 Received: from fw by deneb.enyo.de with local (Exim 4.92) (envelope-from ) id 1jABLL-00050q-TL; Fri, 06 Mar 2020 12:40:39 +0100 From: Florian Weimer To: YunQiang Su Cc: Laurent Vivier , torvalds@linux-foundation.org, Greg KH , akpm@linux-foundation.org, Al Viro , James Bottomley , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org, libc-alpha@sourceware.org Subject: Re: [PATCH] binfmt_misc: pass binfmt_misc P flag to the interpreter References: <20200306080905.173466-1-syq@debian.org> <87r1y53npd.fsf@mid.deneb.enyo.de> <8441f497-61eb-5c14-bf1e-c90a464105a7@vivier.eu> <87mu8t3mlw.fsf@mid.deneb.enyo.de> <40da389d-4e74-2644-2e7c-04d988fcc26f@vivier.eu> Date: Fri, 06 Mar 2020 12:40:39 +0100 In-Reply-To: (YunQiang Su's message of "Fri, 6 Mar 2020 19:29:57 +0800") Message-ID: <87v9nhzp6w.fsf@mid.deneb.enyo.de> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * YunQiang Su: > AT_* only has 32 slot and now. I was afraid that maybe we shouldn't take one. > /* AT_* values 18 through 22 are reserved */ > 27,28,29,30 are not used now. > Which should we use? Where does this limit of 32 tags come from? I don't see it from a userspace perspective.