sched/accounting: Fix parameter passing in task_group_account_field

The order of parameters is inverted. The index parameter
should come first.

Signed-off-by: Glauber Costa <glommer@parallels.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1322863119-14225-3-git-send-email-glommer@parallels.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>

kernel/sched/core.c

@@ -2561,8 +2561,8 @@ struct cgroup_subsys cpuacct_subsys;
 struct cpuacct root_cpuacct;
 #endif
 
-static inline void task_group_account_field(struct task_struct *p,
-					     u64 tmp, int index)
+static inline void task_group_account_field(struct task_struct *p, int index,
+					    u64 tmp)
 {
 #ifdef CONFIG_CGROUP_CPUACCT
 	struct kernel_cpustat *kcpustat;