[S390] Cleanup in signal handling code.

[linux-2.6-omap-h63xx.git] / include / asm-powerpc / uaccess.h

diff --git a/include/asm-powerpc/uaccess.h b/include/asm-powerpc/uaccess.h
index 3872e924cdd6f7c6fca25a8983467d80e47dc79c..d83fc29c2bbf13ed8deed9244e7f71c78dd4c78c 100644 (file)
--- a/include/asm-powerpc/uaccess.h
+++ b/include/asm-powerpc/uaccess.h
@@ -7,6 +7,7 @@
 #include <linux/sched.h>
 #include <linux/errno.h>
 #include <asm/processor.h>
+#include <asm/page.h>
 
 #define VERIFY_READ    0
 #define VERIFY_WRITE   1
@@ -179,9 +180,11 @@ do {                                                               \
 #define __put_user_nocheck(x, ptr, size)                       \
 ({                                                             \
        long __pu_err;                                          \
-       might_sleep();                                          \
+       __typeof__(*(ptr)) __user *__pu_addr = (ptr);           \
+       if (!is_kernel_addr((unsigned long)__pu_addr))          \
+               might_sleep();                                  \
        __chk_user_ptr(ptr);                                    \
-       __put_user_size((x), (ptr), (size), __pu_err);          \
+       __put_user_size((x), __pu_addr, (size), __pu_err);      \
        __pu_err;                                               \
 })
 
@@ -258,9 +261,11 @@ do {                                                               \
 ({                                                             \
        long __gu_err;                                          \
        unsigned long __gu_val;                                 \
+       const __typeof__(*(ptr)) __user *__gu_addr = (ptr);     \
        __chk_user_ptr(ptr);                                    \
-       might_sleep();                                          \
-       __get_user_size(__gu_val, (ptr), (size), __gu_err);     \
+       if (!is_kernel_addr((unsigned long)__gu_addr))          \
+               might_sleep();                                  \
+       __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \
        (x) = (__typeof__(*(ptr)))__gu_val;                     \
        __gu_err;                                               \
 })
@@ -270,9 +275,11 @@ do {                                                               \
 ({                                                             \
        long __gu_err;                                          \
        long long __gu_val;                                     \
+       const __typeof__(*(ptr)) __user *__gu_addr = (ptr);     \
        __chk_user_ptr(ptr);                                    \
-       might_sleep();                                          \
-       __get_user_size(__gu_val, (ptr), (size), __gu_err);     \
+       if (!is_kernel_addr((unsigned long)__gu_addr))          \
+               might_sleep();                                  \
+       __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \
        (x) = (__typeof__(*(ptr)))__gu_val;                     \
        __gu_err;                                               \
 })