Index: kernel/generic/include/proc/thread.h
===================================================================
--- kernel/generic/include/proc/thread.h	(revision e9db6f9e50ba52202778e3452d8cdfe5176e84b6)
+++ kernel/generic/include/proc/thread.h	(revision 9a8baed2206157ee870432337f1815001239ff8a)
@@ -149,4 +149,5 @@
 	uint64_t cycles;			/**< Thread accounting. */
 	uint64_t last_cycle;		/**< Last sampled cycle. */
+	bool uncounted;				/**< Thread doesn't affect accumulated accounting. */
 
 	int priority;				/**< Thread's priority. Implemented as index to CPU->rq */
@@ -169,5 +170,5 @@
 
 extern void thread_init(void);
-extern thread_t *thread_create(void (* func)(void *), void *arg, task_t *task, int flags, char *name);
+extern thread_t *thread_create(void (* func)(void *), void *arg, task_t *task, int flags, char *name, bool uncounted);
 extern void thread_ready(thread_t *t);
 extern void thread_exit(void) __attribute__((noreturn));