Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758215AbZDPXuo (ORCPT ); Thu, 16 Apr 2009 19:50:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756633AbZDPXuG (ORCPT ); Thu, 16 Apr 2009 19:50:06 -0400 Received: from zeniv.linux.org.uk ([195.92.253.2]:51568 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756780AbZDPXuE (ORCPT ); Thu, 16 Apr 2009 19:50:04 -0400 Date: Fri, 17 Apr 2009 00:49:57 +0100 From: Al Viro To: Alessio Igor Bogani Cc: Ingo Molnar , 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: <20090416234957.GE26366@ZenIV.linux.org.uk> References: <1239892078-6039-1-git-send-email-abogani@texware.it> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1239892078-6039-1-git-send-email-abogani@texware.it> 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 Content-Length: 714 Lines: 13 On Thu, Apr 16, 2009 at 04:27:58PM +0200, Alessio Igor Bogani wrote: > Replace ths BKL in sys_mount()/sys_umount() syscalls with a regular mutex. NAK. Push BKL into instances if you care and deal with those one by one. New and unwarranted system-wide exclusion around hell knows what code (we *are* talking about the stuff that is very likely to do at least some IO, dependent on fs internals, phase of moon and amount of farting gnats in the vicinity) is right out. -- 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/