diff options
| -rw-r--r-- | mm/huge_memory.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 68a3c93036f6..a863af26c79c 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -1024,9 +1024,10 @@ int zap_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma, if (__pmd_trans_huge_lock(pmd, vma) == 1) { struct page *page; pgtable_t pgtable; + pmd_t orig_pmd; pgtable = pgtable_trans_huge_withdraw(tlb->mm); - page = pmd_page(*pmd); - pmd_clear(pmd); + orig_pmd = pmdp_get_and_clear(tlb->mm, addr, pmd); + page = pmd_page(orig_pmd); tlb_remove_pmd_tlb_entry(tlb, pmd, addr); page_remove_rmap(page); VM_BUG_ON(page_mapcount(page) < 0); |