From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752511Ab3HZUUn (ORCPT ); Mon, 26 Aug 2013 16:20:43 -0400 Received: from 1wt.eu ([62.212.114.60]:35620 "EHLO 1wt.eu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751722Ab3HZUUm (ORCPT ); Mon, 26 Aug 2013 16:20:42 -0400 Date: Mon, 26 Aug 2013 22:20:28 +0200 From: Willy Tarreau To: Linus Torvalds Cc: Oleg Nesterov , Andrew Morton , Al Viro , Andy Lutomirski , Ingo Molnar , Linux Kernel Mailing List , Linux FS Devel , Brad Spengler , "Eric W. Biederman" Subject: Re: [PATCH] proc: make proc_fd_permission() thread-friendly Message-ID: <20130826202028.GB24065@1wt.eu> References: <20130825052317.GZ27005@ZenIV.linux.org.uk> <20130825065039.GB9299@1wt.eu> <20130825194844.GA16717@redhat.com> <20130826153301.GA15890@redhat.com> <20130826163704.GA21763@redhat.com> <20130826175441.GA28856@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.3i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 26, 2013 at 12:35:26PM -0700, Linus Torvalds wrote: (...) > Yes, it would be semantically different, but it would mean that > "/proc/self/fd/" would actually make sense in a way that it currently > does *not* - which would seem fairly important, since the primary use > for it tends to be /dev/stdin. I remember another user, don't know if that has changed. UPX used to build self-extract binaries that opened /proc/self/fd/3. It might be worth checking this as well if doing important changes, because it's typically a usage that could be discovered to be broken months after the change! Willy