linux-kernel - Re: locking hierarchy based on lockdep

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Message-ID: <Pine.LNX.4.64.0611061539400.29750@dhcp83-20.boston.redhat.com>
Date:	Mon, 6 Nov 2006 15:40:59 -0500 (EST)
From:	Jason Baron <jbaron@...hat.com>
To:	Roland Dreier <rdreier@...co.com>
cc:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	arjan@...radead.org
Subject: Re: locking hierarchy based on lockdep


On Mon, 6 Nov 2006, Roland Dreier wrote:

>  > interesting...perhaps if we layered say the directory structure on the 
>  > list too like by the top level kernel directories drivers, kernel, mm, 
>  > net, etc. it might be more readable.
> 
> I'm not sure that you need to do something manual or ad hoc like that,
> although it might be necessary in the end.  I'd be curious to see how
> the list of locks partitions up if you just divide it up into groups
> of locks that have some relationship.  I guess the question is, if you
> draw the graph whose nodes are locks and whose edges connect locks
> that are held together, how many connected pieces does that graph have?
> 
>  - R.
> 

ok, so grouping the list by sections of connected components-that's a nice 
idea, and would probably make for an interesting list.

-jason
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