Small patch to make it compile (missing global_rt_runtime function):
diff -uNr linux-2.6.25.4.orig/kernel/sched.c linux-2.6.25.4/kernel/sched.c
--- linux-2.6.25.4.orig/kernel/sched.c 2008-06-05 14:12:30.000000000 +0200
+++ linux-2.6.25.4/kernel/sched.c 2008-06-05 13:58:48.000000000 +0200
@@ -671,6 +671,15 @@
*/
#define RUNTIME_INF ((u64)~0ULL)
+static u64 global_rt_runtime(void)
+{
+ if (sysctl_sched_rt_period < 0)
+ return RUNTIME_INF;
+ return (u64)sysctl_sched_rt_runtime * NSEC_PER_USEC;
+}
+
+
+
/*
* We really dont want to do anything complex within switch_to()
* on PREEMPT_RT - this check enforces this.
Cheers
Ciaby