From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753803Ab2DBAID (ORCPT ); Sun, 1 Apr 2012 20:08:03 -0400 Received: from lxorguk.ukuu.org.uk ([81.2.110.251]:38496 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753653Ab2DBAIB (ORCPT ); Sun, 1 Apr 2012 20:08:01 -0400 Date: Mon, 2 Apr 2012 01:09:37 +0100 From: Alan Cox To: Konstantin Khlebnikov Cc: Alexey Dobriyan , "akpm@linux-foundation.org" , "viro@zeniv.linux.org.uk" , "torvalds@linux-foundation.org" , "drepper@gmail.com" , "linux-kernel@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" Subject: Re: [PATCH] nextfd(2) Message-ID: <20120402010937.38b33576@pyramind.ukuu.org.uk> In-Reply-To: <4F785F1D.4020503@openvz.org> References: <20120401125741.GA7484@p183.telecom.by> <4F785F1D.4020503@openvz.org> X-Mailer: Claws Mail 3.8.0 (GTK+ 2.24.8; x86_64-redhat-linux-gnu) Face: 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 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Can we add "pid" argument to be able to search next fd in other task? > Together with sys_kcmp() this will be very useful for checkpoint/restore. That would raise all sorts of security questions unless protected, plus its got races. If you want to do that and you have the rights you can do it via procfs anyway. Alan