Subject: Re: linux-next: percpu tree build warning

From: Rusty Russell <[email-masked]>
Date: Fri, 27 Nov 2009 08:46:02 +1030

On Thu, 26 Nov 2009 12:10:58 am Ingo Molnar wrote:
> While a percpu variable is defined and used in completely different 
> ways:
> 
>   DEFINE_PER_CPU(unsigned long, dr7);
> 
> and is used via:
> 
>   __get_cpu_var(dr7);  [[Fixed -- RR]]

The entire point of Tejun's per-cpu work is that &dr7 is now valid.  A per-cpu
pointer as if it were allocated by the dynamic per-cpu allocator.

Your arguments are fine, but out-of-date.

Rusty.