s390: switch to extable.h

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/s390/include/asm/extable.h

+#ifndef __S390_EXTABLE_H
+#define __S390_EXTABLE_H
+/*
+ * The exception table consists of pairs of addresses: the first is the
+ * address of an instruction that is allowed to fault, and the second is
+ * the address at which the program should continue.  No registers are
+ * modified, so it is entirely up to the continuation code to figure out
+ * what to do.
+ *
+ * All the routines below use bits of fixup code that are out of line
+ * with the main instruction path.  This means when everything is well,
+ * we don't even have to jump over them.  Further, they do not intrude
+ * on our cache or tlb entries.
+ */
+
+struct exception_table_entry
+{
+	int insn, fixup;
+};
+
+static inline unsigned long extable_fixup(const struct exception_table_entry *x)
+{
+	return (unsigned long)&x->fixup + x->fixup;
+}
+
+#define ARCH_HAS_RELATIVE_EXTABLE
+
+#endif

arch/s390/include/asm/uaccess.h

@@ -14,6 +14,7 @@
  */
 #include <asm/processor.h>
 #include <asm/ctl_reg.h>
+#include <asm/extable.h>
 
 
 /*
@@ -59,31 +60,6 @@ static inline int __range_ok(unsigned long addr, unsigned long size)
 
 #define access_ok(type, addr, size) __access_ok(addr, size)
 
-/*
- * The exception table consists of pairs of addresses: the first is the
- * address of an instruction that is allowed to fault, and the second is
- * the address at which the program should continue.  No registers are
- * modified, so it is entirely up to the continuation code to figure out
- * what to do.
- *
- * All the routines below use bits of fixup code that are out of line
- * with the main instruction path.  This means when everything is well,
- * we don't even have to jump over them.  Further, they do not intrude
- * on our cache or tlb entries.
- */
-
-struct exception_table_entry
-{
-	int insn, fixup;
-};
-
-static inline unsigned long extable_fixup(const struct exception_table_entry *x)
-{
-	return (unsigned long)&x->fixup + x->fixup;
-}
-
-#define ARCH_HAS_RELATIVE_EXTABLE
-
 /**
  * __copy_from_user: - Copy a block of data from user space, with less checking.
  * @to:   Destination address, in kernel space.