[POWERPC] Fix possible access to free pages

[linux-2.6-omap-h63xx.git] / include / asm-alpha / thread_info.h

diff --git a/include/asm-alpha/thread_info.h b/include/asm-alpha/thread_info.h
index 69ffd93f8e223a3aafd4eb0cc2400c799a8be317..48a22e3e6f32166570aac056e27d65159181302b 100644 (file)
--- a/include/asm-alpha/thread_info.h
+++ b/include/asm-alpha/thread_info.h
@@ -76,12 +76,14 @@ register struct thread_info *__current_thread_info __asm__("$8");
 #define TIF_UAC_NOFIX          7
 #define TIF_UAC_SIGBUS         8
 #define TIF_MEMDIE             9
+#define TIF_RESTORE_SIGMASK    10      /* restore signal mask in do_signal */
 
 #define _TIF_SYSCALL_TRACE     (1<<TIF_SYSCALL_TRACE)
 #define _TIF_NOTIFY_RESUME     (1<<TIF_NOTIFY_RESUME)
 #define _TIF_SIGPENDING                (1<<TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED      (1<<TIF_NEED_RESCHED)
 #define _TIF_POLLING_NRFLAG    (1<<TIF_POLLING_NRFLAG)
+#define _TIF_RESTORE_SIGMASK   (1<<TIF_RESTORE_SIGMASK)
 
 /* Work to do on interrupt/exception return.  */
 #define _TIF_WORK_MASK         (_TIF_NOTIFY_RESUME     \
@@ -92,5 +94,27 @@ register struct thread_info *__current_thread_info __asm__("$8");
 #define _TIF_ALLWORK_MASK      (_TIF_WORK_MASK         \
                                 | _TIF_SYSCALL_TRACE)
 
+#define ALPHA_UAC_SHIFT                6
+#define ALPHA_UAC_MASK         (1 << TIF_UAC_NOPRINT | 1 << TIF_UAC_NOFIX | \
+                                1 << TIF_UAC_SIGBUS)
+
+#define SET_UNALIGN_CTL(task,value)    ({                                   \
+       task_thread_info(task)->flags = ((task_thread_info(task)->flags &    \
+               ~ALPHA_UAC_MASK)                                             \
+               | (((value) << ALPHA_UAC_SHIFT)       & (1<<TIF_UAC_NOPRINT))\
+               | (((value) << (ALPHA_UAC_SHIFT + 1)) & (1<<TIF_UAC_SIGBUS)) \
+               | (((value) << (ALPHA_UAC_SHIFT - 1)) & (1<<TIF_UAC_NOFIX)));\
+       0; })
+
+#define GET_UNALIGN_CTL(task,value)    ({                              \
+       put_user((task_thread_info(task)->flags & (1 << TIF_UAC_NOPRINT))\
+                 >> ALPHA_UAC_SHIFT                                    \
+                | (task_thread_info(task)->flags & (1 << TIF_UAC_SIGBUS))\
+                >> (ALPHA_UAC_SHIFT + 1)                               \
+                | (task_thread_info(task)->flags & (1 << TIF_UAC_NOFIX))\
+                >> (ALPHA_UAC_SHIFT - 1),                              \
+                (int __user *)(value));                                \
+       })
+
 #endif /* __KERNEL__ */
 #endif /* _ALPHA_THREAD_INFO_H */