Merge branch 'x86/um-header' of git://git.kernel.org/pub/scm/linux/kernel/git/tip...

[linux-2.6-omap-h63xx.git] / arch / s390 / lib / uaccess_std.c

diff --git a/arch/s390/lib/uaccess_std.c b/arch/s390/lib/uaccess_std.c
index 56a0214e9928c371c6cce379e599aaf0f61ef8cd..d2ffbadb51a79e6ff803a3a55abc32be3c59df61 100644 (file)
--- a/arch/s390/lib/uaccess_std.c
+++ b/arch/s390/lib/uaccess_std.c
@@ -13,6 +13,7 @@
 #include <linux/mm.h>
 #include <linux/uaccess.h>
 #include <asm/futex.h>
+#include "uaccess.h"
 
 #ifndef __s390x__
 #define AHI    "ahi"
@@ -28,9 +29,6 @@
 #define SLR    "slgr"
 #endif
 
-extern size_t copy_from_user_pt(size_t n, const void __user *from, void *to);
-extern size_t copy_to_user_pt(size_t n, void __user *to, const void *from);
-
 size_t copy_from_user_std(size_t size, const void __user *ptr, void *x)
 {
        unsigned long tmp1, tmp2;
@@ -72,7 +70,8 @@ size_t copy_from_user_std(size_t size, const void __user *ptr, void *x)
        return size;
 }
 
-size_t copy_from_user_std_check(size_t size, const void __user *ptr, void *x)
+static size_t copy_from_user_std_check(size_t size, const void __user *ptr,
+                                      void *x)
 {
        if (size <= 1024)
                return copy_from_user_std(size, ptr, x);
@@ -110,14 +109,16 @@ size_t copy_to_user_std(size_t size, void __user *ptr, const void *x)
        return size;
 }
 
-size_t copy_to_user_std_check(size_t size, void __user *ptr, const void *x)
+static size_t copy_to_user_std_check(size_t size, void __user *ptr,
+                                    const void *x)
 {
        if (size <= 1024)
                return copy_to_user_std(size, ptr, x);
        return copy_to_user_pt(size, ptr, x);
 }
 
-size_t copy_in_user_std(size_t size, void __user *to, const void __user *from)
+static size_t copy_in_user_std(size_t size, void __user *to,
+                              const void __user *from)
 {
        unsigned long tmp1;
 
@@ -148,7 +149,7 @@ size_t copy_in_user_std(size_t size, void __user *to, const void __user *from)
        return size;
 }
 
-size_t clear_user_std(size_t size, void __user *to)
+static size_t clear_user_std(size_t size, void __user *to)
 {
        unsigned long tmp1, tmp2;
 
@@ -254,7 +255,7 @@ size_t strncpy_from_user_std(size_t size, const char __user *src, char *dst)
                : "0" (-EFAULT), "d" (oparg), "a" (uaddr),              \
                  "m" (*uaddr) : "cc");
 
-int futex_atomic_op(int op, int __user *uaddr, int oparg, int *old)
+int futex_atomic_op_std(int op, int __user *uaddr, int oparg, int *old)
 {
        int oldval = 0, newval, ret;
 
@@ -286,16 +287,16 @@ int futex_atomic_op(int op, int __user *uaddr, int oparg, int *old)
        return ret;
 }
 
-int futex_atomic_cmpxchg(int __user *uaddr, int oldval, int newval)
+int futex_atomic_cmpxchg_std(int __user *uaddr, int oldval, int newval)
 {
        int ret;
 
        asm volatile(
                "   sacf 256\n"
-               "   cs   %1,%4,0(%5)\n"
-               "0: lr   %0,%1\n"
-               "1: sacf 0\n"
-               EX_TABLE(0b,1b)
+               "0: cs   %1,%4,0(%5)\n"
+               "1: lr   %0,%1\n"
+               "2: sacf 0\n"
+               EX_TABLE(0b,2b) EX_TABLE(1b,2b)
                : "=d" (ret), "+d" (oldval), "=m" (*uaddr)
                : "0" (-EFAULT), "d" (newval), "a" (uaddr), "m" (*uaddr)
                : "cc", "memory" );
@@ -311,6 +312,6 @@ struct uaccess_ops uaccess_std = {
        .clear_user = clear_user_std,
        .strnlen_user = strnlen_user_std,
        .strncpy_from_user = strncpy_from_user_std,
-       .futex_atomic_op = futex_atomic_op,
-       .futex_atomic_cmpxchg = futex_atomic_cmpxchg,
+       .futex_atomic_op = futex_atomic_op_std,
+       .futex_atomic_cmpxchg = futex_atomic_cmpxchg_std,
 };