#ifdef CONFIG_CGROUP_CPUACCT extern void cpuacct_charge(struct task_struct *tsk, u64 cputime);extern void cpuacct_account_field(struct task_struct *p, int index, u64 val); #else static inline void cpuacct_charge(struct task_struct *tsk, u64 cputime){} static inline voidcpuacct_account_field(struct task_struct *p, int index, u64 val){} #endif