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From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: Ingo Molnar <mingo@elte.hu>,
	Linux Kernel list <linux-kernel@vger.kernel.org>,
	Oleg Nesterov <oleg@tv-sign.ru>,
	Arjan van de Ven <arjan@infradead.org>,
	Thomas Sattler <tsattler@gmx.de>
Subject: Re: [PATCH] debug work struct cancel deadlocks with lockdep
Date: Thu, 05 Jul 2007 11:10:47 +0200	[thread overview]
Message-ID: <1183626647.7054.61.camel@twins> (raw)
In-Reply-To: <1183626507.3818.19.camel@johannes.berg>

On Thu, 2007-07-05 at 11:08 +0200, Johannes Berg wrote:
> On Thu, 2007-07-05 at 11:01 +0200, Peter Zijlstra wrote:
> 
> > You could of course make this STATIC_LOCKDEP_MAP_INIT() and place it
> > near lockdep_init_map() :-)
> > 
> > That way it would be clear that changes to either ought to be reflected
> > in the other.
> 
> Sure. I have to repost anyway :)
> 
> How about
> 
> +/* both _name and _key must not be NULL */
> +#define STATIC_LOCKDEP_MAP_INIT(_name, _key) \
> +	{ .name = (_name), .key = (_key), }

looks sane enough :-)

> That'll still require some #ifdef foo inside workqueue.h but I think
> it's cleaner to put just this into lockdep.h

It is.


  reply	other threads:[~2007-07-05  9:11 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-07-04 21:12 [PATCH] debug work struct cancel deadlocks with lockdep Johannes Berg
2007-07-05  8:45 ` Ingo Molnar
2007-07-05  8:50   ` Johannes Berg
2007-07-05  8:54     ` Ingo Molnar
2007-07-05  8:53 ` Ingo Molnar
2007-07-05  8:58   ` Johannes Berg
2007-07-05  9:01     ` Peter Zijlstra
2007-07-05  9:08       ` Johannes Berg
2007-07-05  9:10         ` Peter Zijlstra [this message]
2007-07-05  9:19           ` Johannes Berg
2007-07-05  9:03 ` Peter Zijlstra

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