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| author | Ingo Molnar <mingo@kernel.org> | 2016-07-20 09:46:42 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-07-20 09:46:42 +0200 |
| commit | 4fffe71dd913cca5532da594e2f48a0db6b494dc (patch) | |
| tree | 6e0dc83582382506e8b70760d8b59a50d93bfa5a /mm/hugetlb.c | |
| parent | 4b3b234f434d440fcd749b9636131b76e2ce561e (diff) | |
| parent | 47ef4ad2684d380dd6d596140fb79395115c3950 (diff) | |
| download | linux-4fffe71dd913cca5532da594e2f48a0db6b494dc.tar.gz linux-4fffe71dd913cca5532da594e2f48a0db6b494dc.tar.xz | |
Merge branch 'linus' into x86/cpu, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/hugetlb.c')
| -rw-r--r-- | mm/hugetlb.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 388c2bb9b55c..addfe4accc07 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1030,6 +1030,7 @@ static void destroy_compound_gigantic_page(struct page *page, int nr_pages = 1 << order; struct page *p = page + 1; + atomic_set(compound_mapcount_ptr(page), 0); for (i = 1; i < nr_pages; i++, p = mem_map_next(p, page, i)) { clear_compound_head(p); set_page_refcounted(p); @@ -3382,7 +3383,7 @@ retry_avoidcopy: /* If no-one else is actually using this page, avoid the copy * and just make the page writable */ if (page_mapcount(old_page) == 1 && PageAnon(old_page)) { - page_move_anon_rmap(old_page, vma, address); + page_move_anon_rmap(old_page, vma); set_huge_ptep_writable(vma, address, ptep); return 0; } @@ -4228,7 +4229,6 @@ pte_t *huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud) if (saddr) { spte = huge_pte_offset(svma->vm_mm, saddr); if (spte) { - mm_inc_nr_pmds(mm); get_page(virt_to_page(spte)); break; } @@ -4243,9 +4243,9 @@ pte_t *huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud) if (pud_none(*pud)) { pud_populate(mm, pud, (pmd_t *)((unsigned long)spte & PAGE_MASK)); + mm_inc_nr_pmds(mm); } else { put_page(virt_to_page(spte)); - mm_inc_nr_pmds(mm); } spin_unlock(ptl); out: |