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

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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.

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[PATCH v2 00/20] Speculative page faults Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2017-08-18 00:10 +0200
  [PATCH v2 10/20] mm: Introduce __lru_cache_add_active_or_unevictable Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2017-08-18 00:20 +0200
  [PATCH v2 12/20] mm: Introduce __vm_normal_page() Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2017-08-18 00:20 +0200
  [PATCH v2 09/20] mm/migrate: Pass vm_fault pointer to migrate_misplaced_page() Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2017-08-18 00:20 +0200
  [PATCH v2 14/20] mm: Provide speculative fault infrastructure Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2017-08-18 00:20 +0200
    Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Sergey Senozhatsky <sergey.senozhatsky@gmail.com> - 2017-08-20 14:20 +0200
      Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2017-08-25 11:00 +0200
    Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure "Kirill A. Shutemov" <kirill@shutemov.name> - 2017-08-27 02:20 +0200
      Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Peter Zijlstra <peterz@infradead.org> - 2017-08-28 11:40 +0200
        Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Benjamin Herrenschmidt <benh@kernel.crashing.org> - 2017-08-28 23:30 +0200
          Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Andi Kleen <ak@linux.intel.com> - 2017-08-29 00:40 +0200
            Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Peter Zijlstra <peterz@infradead.org> - 2017-08-29 10:20 +0200
          Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Peter Zijlstra <peterz@infradead.org> - 2017-08-29 10:40 +0200
            Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Peter Zijlstra <peterz@infradead.org> - 2017-08-29 13:30 +0200
              Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Benjamin Herrenschmidt <benh@kernel.crashing.org> - 2017-08-30 00:00 +0200
                Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Peter Zijlstra <peterz@infradead.org> - 2017-08-30 08:20 +0200
      Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2017-08-29 10:00 +0200
        Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Peter Zijlstra <peterz@infradead.org> - 2017-08-29 14:10 +0200
          Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2017-08-29 15:20 +0200
            Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Peter Zijlstra <peterz@infradead.org> - 2017-08-29 15:50 +0200
              Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2017-08-30 07:10 +0200
                Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Peter Zijlstra <peterz@infradead.org> - 2017-08-30 08:00 +0200
                Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2017-08-30 11:40 +0200
                Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2017-08-31 09:00 +0200
                Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Peter Zijlstra <peterz@infradead.org> - 2017-08-31 09:40 +0200
                Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2017-08-30 12:00 +0200
          Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2017-08-30 05:50 +0200
      Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2017-08-30 07:30 +0200
      Re: [PATCH v2 14/20] mm: Provide speculative fault infrastructure Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2017-08-30 11:00 +0200
  [PATCH v2 02/20] mm: Prepare for FAULT_FLAG_SPECULATIVE Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2017-08-18 00:20 +0200
  [PATCH v2 06/20] mm: RCU free VMAs Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2017-08-18 00:20 +0200
  [PATCH v2 08/20] mm: Protect SPF handler against anon_vma changes Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2017-08-18 00:20 +0200
  Re: [PATCH v2 00/20] Speculative page faults Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2017-08-21 04:30 +0200
    Re: [PATCH v2 00/20] Speculative page faults Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2017-09-08 11:30 +0200
  Re: [PATCH v2 00/20] Speculative page faults Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2017-08-21 08:30 +0200
    Re: [PATCH v2 00/20] Speculative page faults "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-08-22 02:50 +0200
    Re: [PATCH v2 00/20] Speculative page faults Laurent Dufour <ldufour@linux.vnet.ibm.com> - 2017-08-25 11:50 +0200

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