From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752800AbbAVEf3 (ORCPT ); Wed, 21 Jan 2015 23:35:29 -0500 Received: from cdptpa-outbound-snat.email.rr.com ([107.14.166.232]:49608 "EHLO cdptpa-oedge-vip.email.rr.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750796AbbAVEfZ (ORCPT ); Wed, 21 Jan 2015 23:35:25 -0500 Date: Wed, 21 Jan 2015 23:35:53 -0500 From: Steven Rostedt To: Al Viro Cc: Greg Kroah-Hartman , linux-kernel@vger.kernel.org, Ingo Molnar , Andrew Morton Subject: Re: [RFC][PATCH 0/5] tracing: Add new file system tracefs Message-ID: <20150121233553.19d9ac5c@grimm.local.home> In-Reply-To: <20150122042330.GU29656@ZenIV.linux.org.uk> References: <20150121171953.823177070@goodmis.org> <20150121230007.GA10389@kroah.com> <20150122042330.GU29656@ZenIV.linux.org.uk> X-Mailer: Claws Mail 3.11.1 (GTK+ 2.24.25; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-RR-Connecting-IP: 107.14.168.118:25 X-Cloudmark-Score: 0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 22 Jan 2015 04:23:30 +0000 Al Viro wrote: > I would recommend against that - kernfs is overburdened by their need > to accomodate cgroup weirdness. IMO it's not a good model for > anything, other than an anti-hard-drugs poster ("don't shoot that > shit, or you might end up hallucinating _this_"). OK, I'm not the only one that thought kernfs seemed to go all over the place. I guess I now know why. It was more of a hook for cgroups. I can understand why cgroups needed it, as I found that creating files from a mkdir and removing them with rmdir causes some pain in vfs with handling of locking. As that's what I'm working on overcoming now. But I think I solved my issues (testing it now), and hopefully by tomorrow, I'll have a V2 out. -- Steve