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Date: Tue, 9 Jan 2007 10:02:52 +0000
From: Christoph Hellwig <hch@infradead.org>
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())
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To: Andrew Morton <akpm@osdl.org>
Cc: David Chinner <dgc@sgi.com>, Eric Sandeen <sandeen@sandeen.net>, linux-kernel Mailing List <linux-kernel@vger.kernel.org>, xfs@oss.sgi.com

On Mon, Jan 08, 2007 at 04:19:17PM -0800, Andrew Morton wrote:
> Seems not.  I think people were hoping that various nasties in there
> would go away.  We return to userspace with a kernel lock held??

Well, there might be nicer solutions, but for now we should revert the
broken commit to change the lock type.