Messages in this thread | | | Date | Wed, 23 Jul 2014 11:16:53 +0800 | From | Jiang Liu <> | Subject | Re: [RFC Patch V1 07/30] mm: Use cpu_to_mem()/numa_mem_id() to support memoryless node |
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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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