1 files changed, 6 insertions, 0 deletions

diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index 5c9efe626563..be6c6f7be027 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -163,6 +163,8 @@ void tsk_clear_notify_resume(struct task_struct *tsk)
         if (tsk->thread.pfm_needs_checking)
                 return;
 #endif
+        if (test_ti_thread_flag(task_thread_info(tsk), TIF_RESTORE_RSE))
+                return;
         clear_ti_thread_flag(task_thread_info(tsk), TIF_NOTIFY_RESUME);
 }
 
@@ -184,6 +186,10 @@ do_notify_resume_user (sigset_t *unused, struct sigscratch *scr, long in_syscall
         /* deal with pending signal delivery */
         if (test_thread_flag(TIF_SIGPENDING)||test_thread_flag(TIF_RESTORE_SIGMASK))
                 ia64_do_signal(scr, in_syscall);
+
+        /* copy user rbs to kernel rbs */
+        if (unlikely(test_thread_flag(TIF_RESTORE_RSE)))
+                ia64_sync_krbs();
 }
 
 static int pal_halt        = 1;