From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030352AbWGZIRW (ORCPT ); Wed, 26 Jul 2006 04:17:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932520AbWGZIRW (ORCPT ); Wed, 26 Jul 2006 04:17:22 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:6016 "EHLO mx3.mail.elte.hu") by vger.kernel.org with ESMTP id S932522AbWGZIRV (ORCPT ); Wed, 26 Jul 2006 04:17:21 -0400 Date: Wed, 26 Jul 2006 10:07:39 +0200 From: Ingo Molnar To: andrea@cpushare.com Cc: linux-kernel , Chuck Ebbert <76306.1226@compuserve.com>, "bruce@andrew.cmu.edu" , Alan Cox , Arjan van de Ven , Adrian Bunk , Lee Revell , Linus Torvalds Subject: Re: [PATCH] TIF_NOTSC and SECCOMP prctl Message-ID: <20060726080739.GA10574@elte.hu> References: <200607180623_MC3-1-C54F-3802@compuserve.com> <20060718132941.GG5726@opteron.random> <20060725214441.GC32243@opteron.random> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060725214441.GC32243@opteron.random> User-Agent: Mutt/1.4.2.1i X-ELTE-SpamScore: 0.3 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=0.3 required=5.9 tests=AWL,BAYES_50 autolearn=no SpamAssassin version=3.0.3 0.5 BAYES_50 BODY: Bayesian spam probability is 40 to 60% [score: 0.5000] -0.2 AWL AWL: From: address is in the auto white-list X-ELTE-VirusStatus: clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * andrea@cpushare.com wrote: > Here a repost of the last seccomp patch against current mainline > including the preempt fix. This changes the seccomp API from > /proc//seccomp to a prctl (this will produce a smaller kernel) > and it adds a TIF_NOTSC that seccomp sets. Only the current task can > call disable_TSC (obviously because it hasn't a task_t param). This > includes Chuck's patch to give zero runtime cost to the notsc feature. please send a patch-queue that is properly split-up: the bugfix, the API change and the TIF_NOTSC improvement. Ingo