sched: make posix-cpu-timers use CFS's accounting information

update the posix-cpu-timers code to use CFS's CPU accounting information.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 995eb40..3e7f189 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -482,7 +482,8 @@
 	 * from jiffies_to_ns(utime + stime) if sched_clock uses something
 	 * other than jiffies.)
 	 */
-	unsigned long long sched_time;
+	unsigned long sched_time;
+	unsigned long long sum_sched_runtime;
 
 	/*
 	 * We don't bother to synchronize most readers of this at all,
@@ -1308,7 +1309,7 @@
 
 extern unsigned long long sched_clock(void);
 extern unsigned long long
-current_sched_time(const struct task_struct *current_task);
+task_sched_runtime(struct task_struct *task);
 
 /* sched_exec is called by processes performing an exec */
 #ifdef CONFIG_SMP