Re: [discuss] [patch] x86_64: align and pad x86_64 GDT on page boundary

[Andi Kleen <ak@suse.de>]

> Just that any writes on the bp GDT will invalidate the idt_table cacheline,
> which is read mostly (as Nippun pointed out).  So could we keep the padding
> as it is for the BP too? 

Yes, good point.

> Attached is the patch which fixes the retval in do_boot_cpu to return -1.
> __cpu_up handles -1.
> 
> Hope this patch is OK.

Looks good.

Thanks,
-Andi
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