2 files changed, 9 insertions, 0 deletions

diff --git a/include/asm-ia64/ptrace.h b/include/asm-ia64/ptrace.h
index f4ef87a36236..13435f778b0c 100644
--- a/include/asm-ia64/ptrace.h
+++ b/include/asm-ia64/ptrace.h
@@ -292,6 +292,7 @@ struct switch_stack {
                          unsigned long, long);
   extern void ia64_flush_fph (struct task_struct *);
   extern void ia64_sync_fph (struct task_struct *);
+  extern void ia64_sync_krbs(void);
   extern long ia64_sync_user_rbs (struct task_struct *, struct switch_stack *,
                                   unsigned long, unsigned long);
 
@@ -303,6 +304,12 @@ struct switch_stack {
   extern void ia64_increment_ip (struct pt_regs *pt);
   extern void ia64_decrement_ip (struct pt_regs *pt);
 
+  extern void ia64_ptrace_stop(void);
+  #define arch_ptrace_stop(code, info) \
+        ia64_ptrace_stop()
+  #define arch_ptrace_stop_needed(code, info) \
+        (!test_thread_flag(TIF_RESTORE_RSE))
+
 #endif /* !__KERNEL__ */
 
 /* pt_all_user_regs is used for PTRACE_GETREGS PTRACE_SETREGS */
diff --git a/include/asm-ia64/thread_info.h b/include/asm-ia64/thread_info.h
index 5a2c47957069..93d83cbe0c8c 100644
--- a/include/asm-ia64/thread_info.h
+++ b/include/asm-ia64/thread_info.h
@@ -94,6 +94,7 @@ extern void tsk_clear_notify_resume(struct task_struct *tsk);
 #define TIF_MCA_INIT            18      /* this task is processing MCA or INIT */
 #define TIF_DB_DISABLED         19      /* debug trap disabled for fsyscall */
 #define TIF_FREEZE              20      /* is freezing for suspend */
+#define TIF_RESTORE_RSE         21      /* user RBS is newer than kernel RBS */
 
 #define _TIF_SYSCALL_TRACE      (1 << TIF_SYSCALL_TRACE)
 #define _TIF_SYSCALL_AUDIT      (1 << TIF_SYSCALL_AUDIT)
@@ -107,6 +108,7 @@ extern void tsk_clear_notify_resume(struct task_struct *tsk);
 #define _TIF_MCA_INIT           (1 << TIF_MCA_INIT)
 #define _TIF_DB_DISABLED        (1 << TIF_DB_DISABLED)
 #define _TIF_FREEZE             (1 << TIF_FREEZE)
+#define _TIF_RESTORE_RSE        (1 << TIF_RESTORE_RSE)
 
 /* "work to do on user-return" bits */
 #define TIF_ALLWORK_MASK        (_TIF_SIGPENDING|_TIF_NOTIFY_RESUME|_TIF_SYSCALL_AUDIT|\