Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932211AbcCKToy (ORCPT ); Fri, 11 Mar 2016 14:44:54 -0500 Received: from mail-io0-f179.google.com ([209.85.223.179]:34539 "EHLO mail-io0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750734AbcCKTow (ORCPT ); Fri, 11 Mar 2016 14:44:52 -0500 MIME-Version: 1.0 In-Reply-To: References: <06079088639eddd756e2092b735ce4a682081308.1457486598.git.luto@kernel.org> <20160309085631.GA3247@gmail.com> <20160309113449.GZ29662@port70.net> <20160310033446.GL9349@brightrain.aerifal.cx> <20160310111646.GA13102@gmail.com> <20160310164104.GM9349@brightrain.aerifal.cx> <20160310180331.GB15940@gmail.com> <20160310232819.GR9349@brightrain.aerifal.cx> <20160311093347.GA17749@gmail.com> <20160311113914.GD29662@port70.net> Date: Fri, 11 Mar 2016 11:44:51 -0800 X-Google-Sender-Auth: 9Ou1rYcmsEdUYGV_3wIFHXqM8zE Message-ID: Subject: Re: [musl] Re: [RFC PATCH] x86/vdso/32: Add AT_SYSINFO cancellation helpers From: Linus Torvalds To: Andy Lutomirski Cc: Ingo Molnar , Rich Felker , Andy Lutomirski , "the arch/x86 maintainers" , Linux Kernel Mailing List , Borislav Petkov , "musl@lists.openwall.com" , Andrew Morton , Thomas Gleixner , Peter Zijlstra Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 490 Lines: 16 On Fri, Mar 11, 2016 at 11:39 AM, Linus Torvalds wrote: > > "An implementation may also mark other functions not specified in the > standard as cancellation points" .. but that was from the Linux man-page. The open group has "An implementation shall not introduce cancellation points into any other functions specified in this volume of POSIX.1-2008" So yeah, it looks like there would need to be some way to filter things. Oh well. Linus