1 files changed, 16 insertions, 14 deletions

diff --git a/arch/m68k/include/asm/segment.h b/arch/m68k/include/asm/segment.h
index ee959219fdfe..0fa80e97ed2d 100644
--- a/arch/m68k/include/asm/segment.h
+++ b/arch/m68k/include/asm/segment.h
@@ -22,23 +22,26 @@ typedef struct {
 } mm_segment_t;
 
 #define MAKE_MM_SEG(s)  ((mm_segment_t) { (s) })
-#define USER_DS         MAKE_MM_SEG(__USER_DS)
-#define KERNEL_DS       MAKE_MM_SEG(__KERNEL_DS)
 
+#ifdef CONFIG_CPU_HAS_ADDRESS_SPACES
 /*
  * Get/set the SFC/DFC registers for MOVES instructions
  */
+#define USER_DS         MAKE_MM_SEG(__USER_DS)
+#define KERNEL_DS       MAKE_MM_SEG(__KERNEL_DS)
 
 static inline mm_segment_t get_fs(void)
 {
-#ifdef CONFIG_MMU
         mm_segment_t _v;
         __asm__ ("movec %/dfc,%0":"=r" (_v.seg):);
-
         return _v;
-#else
-        return USER_DS;
-#endif
+}
+
+static inline void set_fs(mm_segment_t val)
+{
+        __asm__ __volatile__ ("movec %0,%/sfc\n\t"
+                              "movec %0,%/dfc\n\t"
+                              : /* no outputs */ : "r" (val.seg) : "memory");
 }
 
 static inline mm_segment_t get_ds(void)
@@ -47,14 +50,13 @@ static inline mm_segment_t get_ds(void)
     return KERNEL_DS;
 }
 
-static inline void set_fs(mm_segment_t val)
-{
-#ifdef CONFIG_MMU
-        __asm__ __volatile__ ("movec %0,%/sfc\n\t"
-                              "movec %0,%/dfc\n\t"
-                              : /* no outputs */ : "r" (val.seg) : "memory");
+#else
+#define USER_DS         MAKE_MM_SEG(TASK_SIZE)
+#define KERNEL_DS       MAKE_MM_SEG(0xFFFFFFFF)
+#define get_ds()        (KERNEL_DS)
+#define get_fs()        (current_thread_info()->addr_limit)
+#define set_fs(x)       (current_thread_info()->addr_limit = (x))
 #endif
-}
 
 #define segment_eq(a,b) ((a).seg == (b).seg)