Re: PATCH] debug: add notifier chain debugging

[Ingo Molnar]

* Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> 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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/