Messages in this thread Patch in this message | | | From | Andrea Arcangeli <> | Subject | [PATCH 2/8] mm: hugetlb: use get_page_foll in follow_hugetlb_page | Date | Wed, 20 Nov 2013 18:51:10 +0100 |
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get_page_foll is more optimal and is always safe to use under the PT lock. More so for hugetlbfs as there's no risk of race conditions with split_huge_page regardless of the PT lock.
Reviewed-by: Khalid Aziz <khalid.aziz@oracle.com> Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> --- mm/hugetlb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 14737f8e..f03e068 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -3113,7 +3113,7 @@ long follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma, same_page: if (pages) { pages[i] = mem_map_offset(page, pfn_offset); - get_page(pages[i]); + get_page_foll(pages[i]); } if (vmas)
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