From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752239AbbIPCQo (ORCPT ); Tue, 15 Sep 2015 22:16:44 -0400 Received: from mail-pa0-f54.google.com ([209.85.220.54]:35555 "EHLO mail-pa0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751681AbbIPCQm (ORCPT ); Tue, 15 Sep 2015 22:16:42 -0400 Date: Wed, 16 Sep 2015 10:16:37 +0800 From: Minfei Huang To: Steven Rostedt Cc: Minfei Huang , mingo@redhat.com, linux-kernel@vger.kernel.org Subject: Re: [REPOST PATCH] ftrace: Remove the unused variant ftrace_update_time Message-ID: <20150916021637.GA8857@t440s.lenovo> References: <1442301043-635-1-git-send-email-mhuang@redhat.com> <20150915093556.2f2148be@gandalf.local.home> <20150915153739.GA5896@t440s.lenovo> <20150915115057.2b9bea60@gandalf.local.home> <20150915160046.GA14393@t440s.lenovo> <20150915121226.2121424f@gandalf.local.home> <20150915163202.GB14393@t440s.lenovo> <20150915130150.2e5ba2fa@gandalf.local.home> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150915130150.2e5ba2fa@gandalf.local.home> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/15/15 at 01:01pm, Steven Rostedt wrote: > On Wed, 16 Sep 2015 00:32:02 +0800 > Minfei Huang wrote: > > > There is one more confusion. Is it valuable to export such info to > > userspace? What does user do, if kernel exports this? > > Nothing. The dyn_ftrace_total_info is purely for debugging ftrace. It's > something I use. > hmmm... Thanks. I don't insist for this patch, if you want to export this variant to userspace. Thanks Minfei