diff options
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 446373535190..76c8e2dc48dd 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1013,8 +1013,10 @@ struct task_struct { * to a stack based synchronous wait) if its doing sync IO. */ wait_queue_t *io_wait; +#ifdef CONFIG_TASK_XACCT /* i/o counters(bytes read/written, #syscalls */ u64 rchar, wchar, syscr, syscw; +#endif struct task_io_accounting ioac; #if defined(CONFIG_TASK_XACCT) u64 acct_rss_mem1; /* accumulated rss usage */ @@ -1649,6 +1651,44 @@ extern int sched_create_sysfs_power_savings_entries(struct sysdev_class *cls); extern void normalize_rt_tasks(void); +#ifdef CONFIG_TASK_XACCT +static inline void add_rchar(struct task_struct *tsk, ssize_t amt) +{ + tsk->rchar += amt; +} + +static inline void add_wchar(struct task_struct *tsk, ssize_t amt) +{ + tsk->wchar += amt; +} + +static inline void inc_syscr(struct task_struct *tsk) +{ + tsk->syscr++; +} + +static inline void inc_syscw(struct task_struct *tsk) +{ + tsk->syscw++; +} +#else +static inline void add_rchar(struct task_struct *tsk, ssize_t amt) +{ +} + +static inline void add_wchar(struct task_struct *tsk, ssize_t amt) +{ +} + +static inline void inc_syscr(struct task_struct *tsk) +{ +} + +static inline void inc_syscw(struct task_struct *tsk) +{ +} +#endif + #endif /* __KERNEL__ */ #endif |