RE: [patch 2/2] add x86-64 support for memory hot-add

[Tolentino, Matthew E]

Andi Kleen <mailto:ak@xxxxxxx> wrote:
> On Monday 09 January 2006 16:21, Matt Tolentino wrote:
>> Add x86-64 specific memory hot-add functions, Kconfig options,
>> and runtime kernel page table update functions to make
>> hot-add usable on x86-64 machines.  Also, fixup the nefarious
>> conditional locking and exports pointed out by Andi.
> 
> I'm trying to stabilize my tree for the 2.6.16 submission right now
> and this one comes a bit too late and is a bit too involved
> to slip through - sorry. I will consider it after Linus
> has merged the whole batch of changes for 2.6.16 - so hopefully
> in 2.6.17.
> 
>> +/*
>> + * Memory hotplug specific functions
>> + * These are only for non-NUMA machines right now.
> 
> How much work would it be to allow it for NUMA kernels too?

I've looked at it in the past, but haven't pursued it to 
date, nor have I quantified the work involved.
The reason for the this approach thus far has been to 
enable machines that support hot-add today...which are 
non-NUMA.  

matt
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