The patch titled
Subject: mm: use the correct page size when removing the page
has been added to the -mm tree. Its filename is
mm-use-the-correct-page-size-when-removing-the-page.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-use-the-correct-page-size-when-removing-the-page.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-use-the-correct-page-size-when-removing-the-page.patch
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------------------------------------------------------
From: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
Subject: mm: use the correct page size when removing the page
We are removing a pmd hugepage here. Use the correct page size.
Link: http://lkml.kernel.org/r/20161026084839.27299-2-aneesh.kumar@xxxxxxxxxxxxxxxxxx
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
Cc: "Kirill A. Shutemov" <kirill@xxxxxxxxxxxxx>
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/huge_memory.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN mm/huge_memory.c~mm-use-the-correct-page-size-when-removing-the-page mm/huge_memory.c
--- a/mm/huge_memory.c~mm-use-the-correct-page-size-when-removing-the-page
+++ a/mm/huge_memory.c
@@ -1398,12 +1398,12 @@ int zap_huge_pmd(struct mmu_gather *tlb,
if (vma_is_dax(vma)) {
spin_unlock(ptl);
if (is_huge_zero_pmd(orig_pmd))
- tlb_remove_page(tlb, pmd_page(orig_pmd));
+ tlb_remove_page_size(tlb, pmd_page(orig_pmd), HPAGE_PMD_SIZE);
} else if (is_huge_zero_pmd(orig_pmd)) {
pte_free(tlb->mm, pgtable_trans_huge_withdraw(tlb->mm, pmd));
atomic_long_dec(&tlb->mm->nr_ptes);
spin_unlock(ptl);
- tlb_remove_page(tlb, pmd_page(orig_pmd));
+ tlb_remove_page_size(tlb, pmd_page(orig_pmd), HPAGE_PMD_SIZE);
} else {
struct page *page = pmd_page(orig_pmd);
page_remove_rmap(page, true);
_
Patches currently in -mm which might be from aneesh.kumar@xxxxxxxxxxxxxxxxxx are
mm-hugetlb-use-the-right-pte-val-for-compare-in-hugetlb_cow.patch
mm-hugetlb-use-huge_pte_lock-instead-of-opencoding-the-lock.patch
mm-use-the-correct-page-size-when-removing-the-page.patch
mm-update-mmu_gather-range-correctly.patch
mm-hugetlb-add-tlb_remove_hugetlb_entry-for-handling-hugetlb-pages.patch
mm-add-tlb_remove_check_page_size_change-to-track-page-size-change.patch
mm-remove-the-page-size-change-check-in-tlb_remove_page.patch
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