1 /* delayacct.h - per-task delay accounting
3 * Copyright (C) Shailabh Nagar, IBM Corp. 2006
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
13 * the GNU General Public License for more details.
17 #ifndef _LINUX_DELAYACCT_H
18 #define _LINUX_DELAYACCT_H
20 #include <linux/sched.h>
22 #ifdef CONFIG_TASK_DELAY_ACCT
24 extern int delayacct_on; /* Delay accounting turned on/off */
25 extern kmem_cache_t *delayacct_cache;
26 extern void delayacct_init(void);
27 extern void __delayacct_tsk_init(struct task_struct *);
28 extern void __delayacct_tsk_exit(struct task_struct *);
30 static inline void delayacct_set_flag(int flag)
33 current->delays->flags |= flag;
36 static inline void delayacct_clear_flag(int flag)
39 current->delays->flags &= ~flag;
42 static inline void delayacct_tsk_init(struct task_struct *tsk)
44 /* reinitialize in case parent's non-null pointer was dup'ed*/
46 if (unlikely(delayacct_on))
47 __delayacct_tsk_init(tsk);
50 static inline void delayacct_tsk_exit(struct task_struct *tsk)
53 __delayacct_tsk_exit(tsk);
57 static inline void delayacct_set_flag(int flag)
59 static inline void delayacct_clear_flag(int flag)
61 static inline void delayacct_init(void)
63 static inline void delayacct_tsk_init(struct task_struct *tsk)
65 static inline void delayacct_tsk_exit(struct task_struct *tsk)
67 #endif /* CONFIG_TASK_DELAY_ACCT */