Re: [PATCH] kmalloc_percpu

From: Martin J. Bligh (mbligh@aracnet.com)
Date: Tue May 06 2003 - 09:38:09 EST


>> As just pointed out by dipankar the only issue is NUMA...
>> so it has to be something more sophisticated than simply
>> kmalloc()[smp_processor_id];
>
> The proposed patch doesn't do anything about that either.
>
> + ptr = alloc_bootmem(PERCPU_POOL_SIZE * NR_CPUS);
>
> So yes, we need an api which could be extended to use node-affine memory at
> some time in the future. I think we have that.

You can just call alloc_bootmem_node for each CPU instead. It doesn't
work on i386 at the moment (well, it'll work but come out of node 0),
but it probably ought to.

M.

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