linux-kernel - Re: [PATCH 4/7] fs: break the file_list_lock for sb->s

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Message-ID: <20070128152106.GA9196@elte.hu>
Date:	Sun, 28 Jan 2007 16:21:06 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Christoph Hellwig <hch@...radead.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Andrew Morton <akpm@...l.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/7] fs: break the file_list_lock for sb->s_files


* Christoph Hellwig <hch@...radead.org> wrote:

> On Sun, Jan 28, 2007 at 12:51:22PM +0100, Peter Zijlstra wrote:
> > Break the protection of sb->s_files out from under the global file_list_lock.
> > 
> > sb->s_files is converted to a lock_list. furthermore to prevent the 
> > lock_list_head of getting too contended with concurrent add 
> > operations the add is buffered in per cpu filevecs.
> 
> NACK.  Please don't start using lockdep internals in core code.

what do you mean by that?

	Ingo
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