[PATCH] unnecessary long index i in sched

Unless we expect to have more than 2G CPUs, there's no reason to have 'i'
as a long long here.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

kernel/sched.c

@@ -1653,7 +1653,8 @@ unsigned long nr_uninterruptible(void)
 
 unsigned long long nr_context_switches(void)
 {
-	unsigned long long i, sum = 0;
+	int i;
+	unsigned long long sum = 0;
 
 	for_each_possible_cpu(i)
 		sum += cpu_rq(i)->nr_switches;