perf: Move perf_event_init() into main.c

Currently we call perf_event_init() from sched_init(). In order to
make it more obvious move it to the cannnonical location.
Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20101117222056.093629821@chello.nl>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

init/main.c

@@ -67,6 +67,7 @@
 #include <linux/sfi.h>
 #include <linux/shmem_fs.h>
 #include <linux/slab.h>
+#include <linux/perf_event.h>
 
 #include <asm/io.h>
 #include <asm/bugs.h>
@@ -603,6 +604,7 @@ asmlinkage void __init start_kernel(void)
 				"enabled *very* early, fixing it\n");
 		local_irq_disable();
 	}
+	perf_event_init();
 	rcu_init();
 	radix_tree_init();
 	/* init some links before init_ISA_irqs() */

kernel/sched.c

@@ -8108,8 +8108,6 @@ void __init sched_init(void)
 		zalloc_cpumask_var(&cpu_isolated_map, GFP_NOWAIT);
 #endif /* SMP */
 
-	perf_event_init();
-
 	scheduler_running = 1;
 }