5 files changed, 35 insertions, 60 deletions
diff --git a/include/asm-s390/compat.h b/include/asm-s390/compat.h
index 296f4f1..7f4ad62 100644
--- a/include/asm-s390/compat.h
+++ b/include/asm-s390/compat.h
@@ -60,8 +60,10 @@ typedef s32		compat_timer_t;
 
 typedef s32		compat_int_t;
 typedef s32		compat_long_t;
+typedef s64		compat_s64;
 typedef u32		compat_uint_t;
 typedef u32		compat_ulong_t;
+typedef u64		compat_u64;
 
 struct compat_timespec {
 	compat_time_t	tv_sec;
diff --git a/include/asm-s390/dma-mapping.h b/include/asm-s390/dma-mapping.h
deleted file mode 100644
index 3f8c12f..0000000
--- a/include/asm-s390/dma-mapping.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/*
- *  include/asm-s390/dma-mapping.h
- *
- *  S390 version
- *
- *  This file exists so that #include <dma-mapping.h> doesn't break anything.
- */
-
-#ifndef _ASM_DMA_MAPPING_H
-#define _ASM_DMA_MAPPING_H
-
-#endif /* _ASM_DMA_MAPPING_H */
diff --git a/include/asm-s390/fb.h b/include/asm-s390/fb.h
new file mode 100644
index 0000000..c7df380
--- /dev/null
+++ b/include/asm-s390/fb.h
@@ -0,0 +1,12 @@
+#ifndef _ASM_FB_H_
+#define _ASM_FB_H_
+#include <linux/fb.h>
+
+#define fb_pgprotect(...) do {} while (0)
+
+static inline int fb_is_primary_device(struct fb_info *info)
+{
+	return 0;
+}
+
+#endif /* _ASM_FB_H_ */
diff --git a/include/asm-s390/page.h b/include/asm-s390/page.h
index 05ea6f1..f326451 100644
--- a/include/asm-s390/page.h
+++ b/include/asm-s390/page.h
@@ -64,7 +64,8 @@ static inline void copy_page(void *to, void *from)
 #define clear_user_page(page, vaddr, pg)	clear_page(page)
 #define copy_user_page(to, from, vaddr, pg)	copy_page(to, from)
 
-#define alloc_zeroed_user_highpage(vma, vaddr) alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vaddr)
+#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
+	alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
 #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
 
 /*
diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h
index 0a307bb..3208dc6 100644
--- a/include/asm-s390/pgtable.h
+++ b/include/asm-s390/pgtable.h
@@ -530,14 +530,6 @@ static inline int pte_young(pte_t pte)
 	return 0;
 }
 
-static inline int pte_read(pte_t pte)
-{
-	/* All pages are readable since we don't use the fetch
-	 * protection bit in the storage key.
-	 */
-	return 1;
-}
-
 /*
  * pgd/pmd/pte modification functions
  */
@@ -677,19 +669,6 @@ ptep_clear_flush_young(struct vm_area_struct *vma,
 	return ptep_test_and_clear_young(vma, address, ptep);
 }
 
-static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
-{
-	return 0;
-}
-
-static inline int
-ptep_clear_flush_dirty(struct vm_area_struct *vma,
-			unsigned long address, pte_t *ptep)
-{
-	/* No need to flush TLB; bits are in storage key */
-	return ptep_test_and_clear_dirty(vma, address, ptep);
-}
-
 static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
 	pte_t pte = *ptep;
@@ -715,16 +694,19 @@ static inline void __ptep_ipte(unsigned long address, pte_t *ptep)
 	pte_val(*ptep) = _PAGE_TYPE_EMPTY;
 }
 
-static inline pte_t
-ptep_clear_flush(struct vm_area_struct *vma,
-		 unsigned long address, pte_t *ptep)
+static inline void ptep_invalidate(unsigned long address, pte_t *ptep)
 {
-	pte_t pte = *ptep;
-	pte_t *shadow_pte = get_shadow_pte(ptep);
-
 	__ptep_ipte(address, ptep);
-	if (shadow_pte)
-		__ptep_ipte(address, shadow_pte);
+	ptep = get_shadow_pte(ptep);
+	if (ptep)
+		__ptep_ipte(address, ptep);
+}
+
+static inline pte_t ptep_clear_flush(struct vm_area_struct *vma,
+				     unsigned long address, pte_t *ptep)
+{
+	pte_t pte = *ptep;
+	ptep_invalidate(address, ptep);
 	return pte;
 }
 
@@ -734,21 +716,14 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
 }
 
-static inline void
-ptep_establish(struct vm_area_struct *vma, 
-	       unsigned long address, pte_t *ptep,
-	       pte_t entry)
-{
-	ptep_clear_flush(vma, address, ptep);
-	set_pte(ptep, entry);
-}
-
-#define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \
-({									  \
-	int __changed = !pte_same(*(__ptep), __entry);			  \
-	if (__changed)							  \
-		ptep_establish(__vma, __address, __ptep, __entry);	  \
-	__changed;							  \
+#define ptep_set_access_flags(__vma, __addr, __ptep, __entry, __dirty)	\
+({									\
+	int __changed = !pte_same(*(__ptep), __entry);			\
+	if (__changed) {						\
+		ptep_invalidate(__addr, __ptep);			\
+		set_pte_at((__vma)->vm_mm, __addr, __ptep, __entry);	\
+	}								\
+	__changed;							\
 })
 
 /*
@@ -948,12 +923,9 @@ extern int remove_shared_memory(unsigned long start, unsigned long size);
 #define __HAVE_ARCH_MEMMAP_INIT
 extern void memmap_init(unsigned long, int, unsigned long, unsigned long);
 
-#define __HAVE_ARCH_PTEP_ESTABLISH
 #define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
 #define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH
-#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY
-#define __HAVE_ARCH_PTEP_CLEAR_DIRTY_FLUSH
 #define __HAVE_ARCH_PTEP_GET_AND_CLEAR
 #define __HAVE_ARCH_PTEP_CLEAR_FLUSH
 #define __HAVE_ARCH_PTEP_SET_WRPROTECT