add workqueue

source/module/monitor_timer.h

@@ -1,4 +1,5 @@
 #include <linux/hrtimer.h>
+#include <linux/workqueue.h>
 
 #define MAX_TIMER_NUM (128)      // max timer number
 #define TIMER_MAX_WATCH_NUM (32) // A timer max watch number at once time
@@ -33,6 +34,10 @@ typedef struct {
   unsigned sentinel;          // sentinel
   kernel_watch_arg
       k_watch_args[TIMER_MAX_WATCH_NUM]; // all watched kernel_watch_arg
+  int threshold_num;                     // all over threshold number, 
+                                         // 0 means no handle needed
+  int threshold_buffer[TIMER_MAX_WATCH_NUM]; //
+  struct work_struct wk;                     // for handle
 } kernel_watch_timer;
 
 // Global variable