sched: fix the wrong mask_len, cleanup

Clean up the division in show_schedstat().

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/kernel/sched_stats.h b/kernel/sched_stats.h
index 81365b3..6757925 100644 (file)
--- a/kernel/sched_stats.h
+++ b/kernel/sched_stats.h
@@ -9,7 +9,7 @@
 static int show_schedstat(struct seq_file *seq, void *v)
 {
        int cpu;
-       int mask_len = (NR_CPUS/32 + 1) * 9;
+       int mask_len = DIV_ROUND_UP(NR_CPUS, 32) * 9;
        char *mask_str = kmalloc(mask_len, GFP_KERNEL);
 
        if (mask_str == NULL)