powerpc/mm: Use generic version of pmdp_clear_flush_young()

The radix variant is going to require a flush_pmd_tlb_range(). With
flush_pmd_tlb_range() added, pmdp_clear_flush_young() is the same as the
generic version. So drop the powerpc specific variant.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 0fac737..4745d31 100644 (file)
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -298,9 +298,6 @@ extern int pmdp_set_access_flags(struct vm_area_struct *vma,
 #define __HAVE_ARCH_PMDP_TEST_AND_CLEAR_YOUNG
 extern int pmdp_test_and_clear_young(struct vm_area_struct *vma,
                                     unsigned long address, pmd_t *pmdp);
-#define __HAVE_ARCH_PMDP_CLEAR_YOUNG_FLUSH
-extern int pmdp_clear_flush_young(struct vm_area_struct *vma,
-                                 unsigned long address, pmd_t *pmdp);
 
 #define __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR
 extern pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,

diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index b3040b4..177e489 100644 (file)
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -588,22 +588,15 @@ pmd_t pmdp_collapse_flush(struct vm_area_struct *vma, unsigned long address,
        return pmd;
 }
 
-int pmdp_test_and_clear_young(struct vm_area_struct *vma,
-                             unsigned long address, pmd_t *pmdp)
-{
-       return __pmdp_test_and_clear_young(vma->vm_mm, address, pmdp);
-}
-
 /*
  * We currently remove entries from the hashtable regardless of whether
- * the entry was young or dirty. The generic routines only flush if the
- * entry was young or dirty which is not good enough.
+ * the entry was young or dirty.
  *
  * We should be more intelligent about this but for the moment we override
  * these functions and force a tlb flush unconditionally
  */
-int pmdp_clear_flush_young(struct vm_area_struct *vma,
-                                 unsigned long address, pmd_t *pmdp)
+int pmdp_test_and_clear_young(struct vm_area_struct *vma,
+                             unsigned long address, pmd_t *pmdp)
 {
        return __pmdp_test_and_clear_young(vma->vm_mm, address, pmdp);
 }