Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760680AbZFKQoQ (ORCPT ); Thu, 11 Jun 2009 12:44:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755453AbZFKQoB (ORCPT ); Thu, 11 Jun 2009 12:44:01 -0400 Received: from mail-bw0-f213.google.com ([209.85.218.213]:63184 "EHLO mail-bw0-f213.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753549AbZFKQoA (ORCPT ); Thu, 11 Jun 2009 12:44:00 -0400 MIME-Version: 1.0 In-Reply-To: <20090611164111.GC12367@shareable.org> References: <1244723089-1145-1-git-send-email-ext-denis.2.karpov@nokia.com> <20090611164111.GC12367@shareable.org> From: Kay Sievers Date: Thu, 11 Jun 2009 18:43:46 +0200 Message-ID: Subject: Re: [PATCH 0/5][V2] FS: userspace notification of errors To: Jamie Lokier Cc: Denis Karpov , hirofumi@mail.parknet.co.jp, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, adrian.hunter@nokia.com, artem.bityutskiy@nokia.com, akpm@linux-foundation.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1270 Lines: 30 On Thu, Jun 11, 2009 at 18:41, Jamie Lokier wrote: > Kay Sievers wrote: >> No, the objection was to use the underlying *device* as the source to >> raise filesystem events. I don't think there are problems in general >> with objects in /sys/fs/ sending events. >> >> But, the remaining questions here are: >> Do we really want superblocks exported in the global, >> non-namespace-aware /sys? It might be wrong to export stuff from other >> namespaces for filesytems which are irrelevant, and not even visible. >> I'm not sure about this, and it needs careful evaluation. We once had >> filesystem mount/umount uevents on block devices, and we needed to >> remove them for that namespace reason. > > Is there no namespace awareness in /sys? No, not at all. It is the straight export of the core kernel objects. > So how do namespaced guests deal with not having access to /sys, given > modern distros make extensive use of it? They ignore it and don't use it, or get confused, I guess. :) Thanks, Kay -- 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/