Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6

[sfrench/cifs-2.6.git] / include / asm-x86_64 / uaccess.h

diff --git a/include/asm-x86_64/uaccess.h b/include/asm-x86_64/uaccess.h
index c0eac519840b2d1d15a4c0751d20293649bbe9b0..f4ce8768ad443648fc637bf1cdb128e25a4f8a44 100644 (file)
--- a/include/asm-x86_64/uaccess.h
+++ b/include/asm-x86_64/uaccess.h
@@ -37,11 +37,11 @@
  * Uhhuh, this needs 65-bit arithmetic. We have a carry..
  */
 #define __range_not_ok(addr,size) ({ \
-       unsigned long flag,sum; \
+       unsigned long flag,roksum; \
        __chk_user_ptr(addr); \
        asm("# range_ok\n\r" \
                "addq %3,%1 ; sbbq %0,%0 ; cmpq %1,%4 ; sbbq $0,%0"  \
-               :"=&r" (flag), "=r" (sum) \
+               :"=&r" (flag), "=r" (roksum) \
                :"1" (addr),"g" ((long)(size)),"g" (current_thread_info()->addr_limit.seg)); \
        flag; })
 
@@ -100,7 +100,7 @@ struct exception_table_entry
        case 8:  __get_user_x(8,__ret_gu,__val_gu,ptr); break;          \
        default: __get_user_bad(); break;                               \
        }                                                               \
-       (x) = (typeof(*(ptr)))__val_gu;                         \
+       (x) = (__force typeof(*(ptr)))__val_gu;                         \
        __ret_gu;                                                       \
 })
 
@@ -192,7 +192,7 @@ struct __large_struct { unsigned long buf[100]; };
        int __gu_err;                                           \
        unsigned long __gu_val;                                 \
        __get_user_size(__gu_val,(ptr),(size),__gu_err);        \
-       (x) = (typeof(*(ptr)))__gu_val;                 \
+       (x) = (__force typeof(*(ptr)))__gu_val;                 \
        __gu_err;                                               \
 })
 
@@ -367,4 +367,18 @@ __copy_to_user_inatomic(void __user *dst, const void *src, unsigned size)
        return copy_user_generic((__force void *)dst, src, size);
 }
 
+#define ARCH_HAS_NOCACHE_UACCESS 1
+extern long __copy_user_nocache(void *dst, const void __user *src, unsigned size, int zerorest);
+
+static inline int __copy_from_user_nocache(void *dst, const void __user *src, unsigned size)
+{
+       might_sleep();
+       return __copy_user_nocache(dst, src, size, 1);
+}
+
+static inline int __copy_from_user_inatomic_nocache(void *dst, const void __user *src, unsigned size)
+{
+       return __copy_user_nocache(dst, src, size, 0);
+}
+
 #endif /* __X86_64_UACCESS_H */