["RFC PATCH" 1/2] powerpc/mm: Fix node look up with numa=off boot

[Aneesh Kumar K.V]

On 7/1/19 10:12 PM, Nathan Lynch wrote:
> "Aneesh Kumar K.V" <aneesh.kumar at linux.ibm.com> writes:
>> I guess we should have here.
>>
>> modified   arch/powerpc/mm/numa.c
>> @@ -416,12 +416,11 @@ static int of_get_assoc_arrays(struct assoc_arrays
>> *aa)
>>    static int of_drconf_to_nid_single(struct drmem_lmb *lmb)
>>    {
>>    	struct assoc_arrays aa = { .arrays = NULL };
>> -	/* is that correct? */
>>    	int default_nid = 0;
>>    	int nid = default_nid;
>>    	int rc, index;
>>
>> -	if (!numa_enabled)
>> +	if ((min_common_depth < 0) || !numa_enabled)
>>    		return NUMA_NO_NODE;
>>
>>    	rc = of_get_assoc_arrays(&aa);
>>
>>
>> Nathan,
>>
>> Can you check this?
> 
> Looks like it would do the right thing.
> 
> Just checking: do people still need numa=off? Seems like it's a
> maintenance burden :-)
> 

That is used in kdump kernel.

-aneesh