From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: with ECARTIS (v1.0.0; list xfs); Mon, 08 Jan 2007 19:13:39 -0800 (PST) Received: from sandeen.net (sandeen.net [209.173.210.139]) by oss.sgi.com (8.12.10/8.12.10/SuSE Linux 0.7) with ESMTP id l093DYqw030656 for ; Mon, 8 Jan 2007 19:13:35 -0800 Message-ID: <45A30828.6000508@sandeen.net> Date: Mon, 08 Jan 2007 21:12:40 -0600 From: Eric Sandeen MIME-Version: 1.0 Subject: Re: bd_mount_mutex -> bd_mount_sem (was Re: xfs_file_ioctl / xfs_freeze: BUG: warning at kernel/mutex-debug.c:80/debug_mutex_unlock()) References: <20070104001420.GA32440@m.safari.iki.fi> <20070107213734.GS44411608@melbourne.sgi.com> <20070108110323.GA3803@m.safari.iki.fi> <45A27416.8030600@sandeen.net> <20070108234728.GC33919298@melbourne.sgi.com> <20070108161917.73a4c2c6.akpm@osdl.org> In-Reply-To: <20070108161917.73a4c2c6.akpm@osdl.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com List-Id: xfs To: Andrew Morton Cc: David Chinner , linux-kernel Mailing List , xfs@oss.sgi.com Andrew Morton wrote: > On Tue, 9 Jan 2007 10:47:28 +1100 > David Chinner wrote: > >> On Mon, Jan 08, 2007 at 10:40:54AM -0600, Eric Sandeen wrote: >>> Sami Farin wrote: >>>> On Mon, Jan 08, 2007 at 08:37:34 +1100, David Chinner wrote: >>>> ... >>>>>> fstab was there just fine after -u. >>>>> Oh, that still hasn't been fixed? >>>> Looked like it =) >>> Hm, it was proposed upstream a while ago: >>> >>> http://lkml.org/lkml/2006/9/27/137 >>> >>> I guess it got lost? >> Seems like it. Andrew, did this ever get queued for merge? > > Seems not. I think people were hoping that various nasties in there > would go away. We return to userspace with a kernel lock held?? Is a semaphore any worse than the current mutex in this respect? At least unlocking from another thread doesn't violate semaphore rules. :) -Eric