Re: [RFC Patch V1 07/30] mm: Use cpu_to_mem()/numa_mem_id() to support memoryless node

Hi Tejun and Christoph,
	Thanks for your suggestions and discussion. Tejun really
gives a good point to hide memoryless node interface from normal
slab users. I will rework the patch set to go that direction.
Regards!
Gerry

On 2014/7/12 3:11, Christoph Lameter wrote:
> On Fri, 11 Jul 2014, Tejun Heo wrote:
> 
>> On Fri, Jul 11, 2014 at 12:29:30PM -0500, Christoph Lameter wrote:
>>> GFP_THISNODE is mostly used by allocators that need memory from specific
>>> nodes. The use of numa_mem_id() there is useful because one will not
>>> get any memory at all when attempting to allocate from a memoryless
>>> node using GFP_THISNODE.
>>
>> As long as it's in allocator proper, it doesn't matter all that much
>> but the changes are clearly not contained, are they?
> 
> Well there is a proliferation of memory allocators recently. NUMA is often
> a second thought in those.
> 
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