On 31.7.2015 23:25, David Rientjes wrote:
> On Thu, 30 Jul 2015, Vlastimil Babka wrote:
>
>> diff --git a/mm/huge_memory.c b/mm/huge_memory.c
>> index aa58a32..56355f2 100644
>> --- a/mm/huge_memory.c
>> +++ b/mm/huge_memory.c
>> @@ -2469,7 +2469,7 @@ khugepaged_alloc_page(struct page **hpage, gfp_t gfp,
>> struct mm_struct *mm,
>> */
>> up_read(&mm->mmap_sem);
>>
>> - *hpage = alloc_pages_exact_node(node, gfp, HPAGE_PMD_ORDER);
>> + *hpage = __alloc_pages_node(node, gfp, HPAGE_PMD_ORDER);
>> if (unlikely(!*hpage)) {
>> count_vm_event(THP_COLLAPSE_ALLOC_FAILED);
>> *hpage = ERR_PTR(-ENOMEM);
>> @@ -2568,9 +2568,7 @@ static void collapse_huge_page(struct mm_struct *mm,
>>
>> VM_BUG_ON(address & ~HPAGE_PMD_MASK);
>>
>> - /* Only allocate from the target node */
>> - gfp = alloc_hugepage_gfpmask(khugepaged_defrag(), __GFP_OTHER_NODE) |
>> - __GFP_THISNODE;
>> + gfp = alloc_hugepage_gfpmask(khugepaged_defrag(), 0);
>>
>> /* release the mmap_sem read lock. */
>> new_page = khugepaged_alloc_page(hpage, gfp, mm, vma, address, node);
>
> Hmm, where is the __GFP_THISNODE enforcement in khugepaged_alloc_page()
> that is removed in collapse_huge_page()? I also don't see what happened
> to the __GFP_OTHER_NODE.
Crap, I messed up with git, this hunk was supposed to be gone. Thanks for
noticing. Please apply without the collapse_huge_page hunk, or tell me to resend
once more.
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