Re: [RFC 00/15] x86_64: Optimize percpu accesses

[Jeremy Fitzhardinge]

Eric W. Biederman wrote:
> I think we can get away with just simply realloc'ing the percpu area
> on each cpu.  No fancy table manipulations required.  Just update
> the base pointer in %gs and in someplace global.
>   

It's perfectly legitimate to take the address of a percpu variable and 
store it somewhere.  We can't move them around.

   J
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