From: Ingo Molnar <mingo@elte.hu>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Arjan van de Ven <arjan@infradead.org>, linux-kernel@vger.kernel.org
Subject: Re: PATCH] debug: add notifier chain debugging
Date: Wed, 20 Aug 2008 12:53:53 +0200 [thread overview]
Message-ID: <20080820105352.GB18524@elte.hu> (raw)
In-Reply-To: <20080819210932.9bb348b9.akpm@linux-foundation.org>
* Andrew Morton <akpm@linux-foundation.org> wrote:
> > +config DEBUG_NOTIFIERS
> > + bool "Debug notifier call chains"
> > + depends on DEBUG_KERNEL
> > + help
> > + Enable this to turn on sanity checking for notifier call chains.
> > + This is most useful for kernel developers to make sure that
> > + modules properly unregister themselves from notifier chains.
> > + This is a relatively cheap check but if you care about maximum
> > + performance, say N.
> > +
>
> If we remove the first two checks then surely we can afford to add the
> remaining check unconditionally and lose the new config option and its
> ifdef.
yeah, that's sensible. Arjan?
Ingo
next prev parent reply other threads:[~2008-08-20 10:54 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-15 22:29 PATCH] debug: add notifier chain debugging Arjan van de Ven
2008-08-15 22:53 ` Ingo Molnar
2008-08-20 4:09 ` Andrew Morton
2008-08-20 10:53 ` Ingo Molnar [this message]
2008-08-22 14:00 ` Arjan van de Ven
2008-08-22 14:45 ` Christoph Hellwig
2008-08-25 22:39 ` Tony Luck
2008-08-26 4:55 ` Arjan van de Ven
2008-08-26 5:08 ` Tony Luck
2008-08-26 13:46 ` Arjan van de Ven
2008-08-26 16:22 ` Arjan van de Ven
2008-08-27 6:39 ` Ingo Molnar
2008-08-27 10:55 ` Arjan van de Ven
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