Re: [PATCH] Fix WARN_ON / WARN_ON_ONCE regression

[Tim Chen]

On Tue, 2006-10-03 at 17:07 -0700, Andrew Morton wrote:

> 
> Perhaps the `static int __warn_once' is getting put in the same cacheline
> as some frequently-modified thing.   Perhaps try marking that as __read_mostly?
> 

I've tried marking static int __warn_once as __read_mostly.  However, it
did not help with reducing the cache miss :(

So I would suggest reversing the "Let WARN_ON/WARN_ON_ONCE return the
condition" patch.  It has just been added 3 days ago so reversing it
should not be a problem.

Tim
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