mm: change pmdp_huge_get_and_clear_full take vm_area_struct as arg

We will use this in later patch to do tlb flush when clearing pmd entries.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200505071729.54912-22-aneesh.kumar@linux.ibm.com

diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 6076c8c..e2528e0 100644 (file)
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -1560,7 +1560,7 @@ static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
 }
 
 #define __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR_FULL
-static inline pmd_t pmdp_huge_get_and_clear_full(struct mm_struct *mm,
+static inline pmd_t pmdp_huge_get_and_clear_full(struct vm_area_struct *vma,
                                                 unsigned long addr,
                                                 pmd_t *pmdp, int full)
 {
@@ -1569,7 +1569,7 @@ static inline pmd_t pmdp_huge_get_and_clear_full(struct mm_struct *mm,
                *pmdp = __pmd(_SEGMENT_ENTRY_EMPTY);
                return pmd;
        }
-       return pmdp_xchg_lazy(mm, addr, pmdp, __pmd(_SEGMENT_ENTRY_EMPTY));
+       return pmdp_xchg_lazy(vma->vm_mm, addr, pmdp, __pmd(_SEGMENT_ENTRY_EMPTY));
 }
 
 #define __HAVE_ARCH_PMDP_HUGE_CLEAR_FLUSH

diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 329b8c8..d10be36 100644 (file)
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -159,11 +159,11 @@ static inline pud_t pudp_huge_get_and_clear(struct mm_struct *mm,
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 #ifndef __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR_FULL
-static inline pmd_t pmdp_huge_get_and_clear_full(struct mm_struct *mm,
+static inline pmd_t pmdp_huge_get_and_clear_full(struct vm_area_struct *vma,
                                            unsigned long address, pmd_t *pmdp,
                                            int full)
 {
-       return pmdp_huge_get_and_clear(mm, address, pmdp);
+       return pmdp_huge_get_and_clear(vma->vm_mm, address, pmdp);
 }
 #endif
 

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 6ecd104..16f2bd6 100644 (file)
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1852,8 +1852,8 @@ int zap_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma,
         * pgtable_trans_huge_withdraw after finishing pmdp related
         * operations.
         */
-       orig_pmd = pmdp_huge_get_and_clear_full(tlb->mm, addr, pmd,
-                       tlb->fullmm);
+       orig_pmd = pmdp_huge_get_and_clear_full(vma, addr, pmd,
+                                               tlb->fullmm);
        tlb_remove_pmd_tlb_entry(tlb, pmd, addr);
        if (vma_is_special_huge(vma)) {
                if (arch_needs_pgtable_deposit())