linux-kernel - Re: [PATCH 1/1] vfs: umount

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Date:	Fri, 24 Apr 2009 15:02:01 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Al Viro <viro@...IV.linux.org.uk>
Cc:	Christoph Hellwig <hch@...radead.org>,
	Fr?d?ric Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	Alessio Igor Bogani <abogani@...ware.it>,
	Jonathan Corbet <corbet@....net>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	LKML <linux-kernel@...r.kernel.org>,
	LFSDEV <linux-fsdevel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Matthew Wilcox <matthew@....cx>
Subject: Re: [PATCH 1/1] vfs: umount_begin BKL pushdown v2

On Fri, Apr 24, 2009 at 07:55:24PM +0100, Al Viro wrote:
> Nah, it's not that.  I can hold that in a separate branch and keep it
> anchored.  The question is, what else will end up there?
> 	* the work inside the methods on BKL _removal_
> 	* things like merging that ->write_super() call into ->put_super(),
> etc.
> 	* probably parts of work on s_flags mess and ro (tied to remout)

	* moving lock_super from callers into ->write_super and
	  ->remount_fs.  No need to only push one lock down when we
	  touch them anyway.

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