RTSS17 submitwip-modechange

1 files changed, 5 insertions, 1 deletions

diff --git a/src/kernel_iface.c b/src/kernel_iface.c
index 5460594..273ecb2 100644
--- a/src/kernel_iface.c
+++ b/src/kernel_iface.c
@@ -98,6 +98,8 @@ int init_kernel_iface(void)
                      != LITMUS_CP_OFFSET_TS_SC_START);
         BUILD_BUG_ON(offsetof(struct control_page, irq_syscall_start)
                      != LITMUS_CP_OFFSET_IRQ_SC_START);
+        BUILD_BUG_ON(offsetof(struct control_page, mode_poll_task)
+                     != LITMUS_CP_OFFSET_MODE_POLL_TASK);
 
         err = map_file(LITMUS_CTRL_DEVICE, &mapped_at, CTRL_PAGES * page_size);
 
@@ -110,7 +112,7 @@ int init_kernel_iface(void)
                 fprintf(stderr, "%s: cannot open LITMUS^RT control page (%m)\n",
                         __FUNCTION__);
         }
-
+        ctrl_page->mode_poll_task = 0;
         return err;
 }
 
@@ -140,6 +142,7 @@ int requested_to_preempt(void)
         return (likely(ctrl_page != NULL) && ctrl_page->sched.np.preempt);
 }
 
+#ifdef CONFIG_PGMRT_SUPPORT
 void enter_pgm_wait(void)               
 {               
         if (likely(ctrl_page != NULL) || init_kernel_iface() == 0) {            
@@ -195,6 +198,7 @@ void exit_pgm_send(void)
                 fprintf(stderr, "exit_pgm_send: control page not mapped!\n");           
         }               
 }
+#endif
 /* init and return a ptr to the control page for
  * preemption and migration overhead analysis
  *