Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751447AbWBQV7l (ORCPT ); Fri, 17 Feb 2006 16:59:41 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751448AbWBQV7l (ORCPT ); Fri, 17 Feb 2006 16:59:41 -0500 Received: from nevyn.them.org ([66.93.172.17]:3539 "EHLO nevyn.them.org") by vger.kernel.org with ESMTP id S1751447AbWBQV7k (ORCPT ); Fri, 17 Feb 2006 16:59:40 -0500 Date: Fri, 17 Feb 2006 16:59:33 -0500 From: Daniel Jacobowitz To: Ingo Molnar Cc: Andrew Morton , linux-kernel@vger.kernel.org, drepper@redhat.com, tglx@linutronix.de, arjan@infradead.org, dsingleton@mvista.com Subject: Re: [patch 0/5] lightweight robust futexes: -V1 Message-ID: <20060217215933.GA1874@nevyn.them.org> Mail-Followup-To: Ingo Molnar , Andrew Morton , linux-kernel@vger.kernel.org, drepper@redhat.com, tglx@linutronix.de, arjan@infradead.org, dsingleton@mvista.com References: <20060215151711.GA31569@elte.hu> <20060215134556.57cec83a.akpm@osdl.org> <20060215221434.GA20104@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060215221434.GA20104@elte.hu> User-Agent: Mutt/1.5.8i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 922 Lines: 21 On Wed, Feb 15, 2006 at 11:14:34PM +0100, Ingo Molnar wrote: > > Why do we need sys_get_robust_list(other task)? > > just for completeness for debuggers - when i added the TLS syscalls > debugging people complained that there was no easy way to query the TLS > settings of a thread. I didnt want to add yet another ptrace op - but > maybe that's the right solution? ptrace is a bit clumsy for things like > this - the task might not be ptrace-able, while querying the list head > is such an easy thing. If it isn't ptraceable, then why should we need to ask the kernel for a pointer into its memory? Except maybe for attacking it :-) -- Daniel Jacobowitz CodeSourcery - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/