Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758886AbZDPQ67 (ORCPT ); Thu, 16 Apr 2009 12:58:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756236AbZDPQ6t (ORCPT ); Thu, 16 Apr 2009 12:58:49 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:48149 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756058AbZDPQ6s (ORCPT ); Thu, 16 Apr 2009 12:58:48 -0400 Date: Thu, 16 Apr 2009 18:58:33 +0200 From: Ingo Molnar To: Alessio Igor Bogani , Alexander Viro Cc: Frederic Weisbecker , Peter Zijlstra , LKML , Jonathan Corbet Subject: Re: [PATCH -tip] remove the BKL: Replace BKL in mount/umount syscalls with a mutex Message-ID: <20090416165833.GA21704@elte.hu> References: <1239892078-6039-1-git-send-email-abogani@texware.it> <20090416160645.GB17804@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090416160645.GB17804@elte.hu> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1056 Lines: 31 * Ingo Molnar wrote: > * Alessio Igor Bogani wrote: > > > Replace ths BKL in sys_mount()/sys_umount() syscalls with a regular mutex. > > > > Signed-off-by: Alessio Igor Bogani > > --- > > fs/namespace.c | 16 +++++++++------- > > fs/super.c | 9 ++++----- > > 2 files changed, 13 insertions(+), 12 deletions(-) > > Ok, this patch needs to be flamed^W commented on by Al. > > Al: this patch is very likely broken as i cannot imagine you > leaving the BKL there just so. So lets accept that (and your NAK) > as a given and not get upset about it too much. > > We are willing to fix any side effects and preconditions before > this can be done [...] this == remove the BKL. Not introduce a needless mutex like this patch does. Ingo -- 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/