[S390] pgtable: move pte_mkhuge() from hugetlb.h to pgtable.h

All architectures besides s390 have pte_mkhuge() defined in pgtable.h.
So move the function to pgtable.h on s390 as well.
Fixes a compile error introduced with "hugetlb: hugepage migration core"
in linux-next which only happens on s390.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h
index bb8343d157bc18b6117d02aa4ef164039b06f108..b56403c2df281d098aa67dc89d3ca9511b6ea5ea 100644 (file)
--- a/arch/s390/include/asm/hugetlb.h
+++ b/arch/s390/include/asm/hugetlb.h
@@ -37,32 +37,6 @@ static inline int prepare_hugepage_range(struct file *file,
 int arch_prepare_hugepage(struct page *page);
 void arch_release_hugepage(struct page *page);
 
-static inline pte_t pte_mkhuge(pte_t pte)
-{
-       /*
-        * PROT_NONE needs to be remapped from the pte type to the ste type.
-        * The HW invalid bit is also different for pte and ste. The pte
-        * invalid bit happens to be the same as the ste _SEGMENT_ENTRY_LARGE
-        * bit, so we don't have to clear it.
-        */
-       if (pte_val(pte) & _PAGE_INVALID) {
-               if (pte_val(pte) & _PAGE_SWT)
-                       pte_val(pte) |= _HPAGE_TYPE_NONE;
-               pte_val(pte) |= _SEGMENT_ENTRY_INV;
-       }
-       /*
-        * Clear SW pte bits SWT and SWX, there are no SW bits in a segment
-        * table entry.
-        */
-       pte_val(pte) &= ~(_PAGE_SWT | _PAGE_SWX);
-       /*
-        * Also set the change-override bit because we don't need dirty bit
-        * tracking for hugetlbfs pages.
-        */
-       pte_val(pte) |= (_SEGMENT_ENTRY_LARGE | _SEGMENT_ENTRY_CO);
-       return pte;
-}
-
 static inline pte_t huge_pte_wrprotect(pte_t pte)
 {
        pte_val(pte) |= _PAGE_RO;

diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index f79e7bb9ae1e8a926f7ea885b44b96cedf681338..986dc9476c219127604995d210fc28514e736f99 100644 (file)
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -772,6 +772,34 @@ static inline pte_t pte_mkspecial(pte_t pte)
        return pte;
 }
 
+#ifdef CONFIG_HUGETLB_PAGE
+static inline pte_t pte_mkhuge(pte_t pte)
+{
+       /*
+        * PROT_NONE needs to be remapped from the pte type to the ste type.
+        * The HW invalid bit is also different for pte and ste. The pte
+        * invalid bit happens to be the same as the ste _SEGMENT_ENTRY_LARGE
+        * bit, so we don't have to clear it.
+        */
+       if (pte_val(pte) & _PAGE_INVALID) {
+               if (pte_val(pte) & _PAGE_SWT)
+                       pte_val(pte) |= _HPAGE_TYPE_NONE;
+               pte_val(pte) |= _SEGMENT_ENTRY_INV;
+       }
+       /*
+        * Clear SW pte bits SWT and SWX, there are no SW bits in a segment
+        * table entry.
+        */
+       pte_val(pte) &= ~(_PAGE_SWT | _PAGE_SWX);
+       /*
+        * Also set the change-override bit because we don't need dirty bit
+        * tracking for hugetlbfs pages.
+        */
+       pte_val(pte) |= (_SEGMENT_ENTRY_LARGE | _SEGMENT_ENTRY_CO);
+       return pte;
+}
+#endif
+
 #ifdef CONFIG_PGSTE
 /*
  * Get (and clear) the user dirty bit for a PTE.