linux-kernel - Re: bd_mount_mutex -> bd_mount_sem (was Re: xfs_file_ioctl / xfs_freeze: BUG: warning at kernel/mutex-debug.c:80/debug_mutex

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Message-ID: <20070109100252.GA14713@infradead.org>
Date:	Tue, 9 Jan 2007 10:02:52 +0000
From:	Christoph Hellwig <hch@...radead.org>
To:	Andrew Morton <akpm@...l.org>
Cc:	David Chinner <dgc@....com>, Eric Sandeen <sandeen@...deen.net>,
	linux-kernel Mailing List <linux-kernel@...r.kernel.org>,
	xfs@....sgi.com
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())

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.

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