[PATCH 5/7] Use %gs for per-cpu sections in kernel

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Andi Kleen wrote:
> BTW I changed my copy sorry. I redid the early PDA support
> to not be in assembler.

I went to the trouble of making the PDA completely set up before any C 
code ran.  Did you undo that?

Andrew mentioned that people have various hacks which hook into mcount, 
and want to use current/smp_processor_id, which means that that they 
have to work from the first function prologue.
It also simplifies things to get all that set up ASAP so there's no 
bootstrap dependency problem.

    J


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