From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753867Ab3KDQXV (ORCPT ); Mon, 4 Nov 2013 11:23:21 -0500 Received: from mx1.redhat.com ([209.132.183.28]:34450 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752967Ab3KDQXT (ORCPT ); Mon, 4 Nov 2013 11:23:19 -0500 Date: Mon, 4 Nov 2013 17:22:29 +0100 From: Oleg Nesterov To: Namhyung Kim Cc: Steven Rostedt , Namhyung Kim , Masami Hiramatsu , Hyeoncheol Lee , Hemant Kumar , LKML , Srikar Dronamraju , "zhangwei(Jovi)" , Arnaldo Carvalho de Melo Subject: Re: [PATCHSET 00/13] tracing/uprobes: Add support for more fetch methods (v6) Message-ID: <20131104162229.GA8921@redhat.com> References: <1383029621-7384-1-git-send-email-namhyung@kernel.org> <20131102155458.GA6981@redhat.com> <87ob60366m.fsf@sejong.aot.lge.com> <87fvrc35kj.fsf@sejong.aot.lge.com> <20131104155131.GD4440@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20131104155131.GD4440@redhat.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/04, Oleg Nesterov wrote: > > But in any case, I strongly believe that it doesn't make any sense to > rely on tu->inode in get_user_vaddr(). Hmm. But I forgot about the case when you probe the function in libc and want to dump the variable in libc... So probably I was wrong and this all needs more thinking. Damn. Perhaps we really need to pass @file/offset, but it is not clear what we can do with bss/anon-mapping. Oleg.