Messages in this thread Patch in this message | | | From | j.glisse@gmail ... | Subject | [PATCH 1/3] mm: honor FOLL_GET flag in follow_hugetlb_page | Date | Tue, 7 May 2013 16:45:54 -0400 |
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From: Jerome Glisse <jglisse@redhat.com>
Do not increase page count if FOLL_GET is not set.
Signed-off-by: Jerome Glisse <jglisse@redhat.com> --- mm/hugetlb.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 1a12f5b..5d1e46b 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -2991,7 +2991,9 @@ 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]); + if (flags & FOLL_GET) { + get_page_foll(pages[i]); + } } if (vmas) -- 1.8.2.1
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