mm: use the correct page size when removing the page
authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Tue, 13 Dec 2016 00:42:31 +0000 (16:42 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 13 Dec 2016 02:55:07 +0000 (18:55 -0800)
We are removing a pmd hugepage here.  Use the correct page size.

Link: http://lkml.kernel.org/r/20161026084839.27299-2-aneesh.kumar@linux.vnet.ibm.com
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/huge_memory.c

index f8e35cc66d32ddd4f205cb7c06b96ad2c3b90645..0103728ffa94fdc5559eb131efe4bdc6c9286292 100644 (file)
@@ -1399,12 +1399,12 @@ int zap_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma,
        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);