Subject: Re: [PATCH 1/4 tip/sched/core] sched: rename preempt_notifier to sched_notifier and always enable it

From: Ingo Molnar <[email-masked]>
Date: Fri, 27 Nov 2009 07:13:19 +0100

* Tejun Heo <[email-masked]> wrote:

> Hello,
> 
> 11/27/2009 02:46 PM, Ingo Molnar wrote:
> > Other code will benefit from it though, such as the page fault callbacks 
> > i already mentioned.
> > 
> > My position on this is rather clear: i want no new callbacks and no 
> > changes to callbacks in the scheduler until this situation is cleaned 
> > up. Five callback sites are _way_ too much - so if you want to add 
> > callbacks or change them, please clean it up and improve it first.
> 
> Even changes which cause no functional differences? [...]

Such as enabling preempt notifiers unconditionally? That's a functional 
change - it turns a so-far optional callback into an essentially 
mandatory one.

	Ingo