Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure

[Laurent Dufour]

On 20/08/2017 14:11, Sergey Senozhatsky wrote:
> On (08/18/17 00:05), Laurent Dufour wrote:
> [..]
>> +    /*
>> +     * MPOL_INTERLEAVE implies additional check in mpol_misplaced() which
>> +     * are not compatible with the speculative page fault processing.
>> +     */
>> +    pol = __get_vma_policy(vma, address);
>> +    if (!pol)
>> +            pol = get_task_policy(current);
>> +    if (pol && pol->mode == MPOL_INTERLEAVE)
>> +            goto unlock;
> 
> include/linux/mempolicy.h defines
> 
> struct mempolicy *get_task_policy(struct task_struct *p);
> struct mempolicy *__get_vma_policy(struct vm_area_struct *vma,
>               unsigned long addr);
> 
> only for CONFIG_NUMA configs.

Thanks Sergey, I'll add #ifdef around this block.