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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 */