From: Andrew Morton <akpm@linux-foundation.org>

arch/i386/kernel/tsc.c: In function 'mark_tsc_unstable':
arch/i386/kernel/tsc.c:223: warning: implicit declaration of function 'sched_clock_unstable_event'

Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/i386/kernel/tsc.c |    1 +
 1 file changed, 1 insertion(+)

diff -puN arch/i386/kernel/tsc.c~cfs-scheduler-vs-detach-schedh-from-mmh arch/i386/kernel/tsc.c
--- a/arch/i386/kernel/tsc.c~cfs-scheduler-vs-detach-schedh-from-mmh
+++ a/arch/i386/kernel/tsc.c
@@ -4,6 +4,7 @@
  * See comments there for proper credits.
  */
 
+#include <linux/sched.h>
 #include <linux/clocksource.h>
 #include <linux/workqueue.h>
 #include <linux/cpufreq.h>
_