diff options
Diffstat (limited to 'ANDROID_3.4.5/include/linux/delayacct.h')
| -rw-r--r-- | ANDROID_3.4.5/include/linux/delayacct.h | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/ANDROID_3.4.5/include/linux/delayacct.h b/ANDROID_3.4.5/include/linux/delayacct.h deleted file mode 100644 index 6cee17c2..00000000 --- a/ANDROID_3.4.5/include/linux/delayacct.h +++ /dev/null @@ -1,153 +0,0 @@ -/* delayacct.h - per-task delay accounting - * - * Copyright (C) Shailabh Nagar, IBM Corp. 2006 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See - * the GNU General Public License for more details. - * - */ - -#ifndef _LINUX_DELAYACCT_H -#define _LINUX_DELAYACCT_H - -#include <linux/sched.h> -#include <linux/slab.h> - -/* - * Per-task flags relevant to delay accounting - * maintained privately to avoid exhausting similar flags in sched.h:PF_* - * Used to set current->delays->flags - */ -#define DELAYACCT_PF_SWAPIN 0x00000001 /* I am doing a swapin */ -#define DELAYACCT_PF_BLKIO 0x00000002 /* I am waiting on IO */ - -#ifdef CONFIG_TASK_DELAY_ACCT - -extern int delayacct_on; /* Delay accounting turned on/off */ -extern struct kmem_cache *delayacct_cache; -extern void delayacct_init(void); -extern void __delayacct_tsk_init(struct task_struct *); -extern void __delayacct_tsk_exit(struct task_struct *); -extern void __delayacct_blkio_start(void); -extern void __delayacct_blkio_end(void); -extern int __delayacct_add_tsk(struct taskstats *, struct task_struct *); -extern __u64 __delayacct_blkio_ticks(struct task_struct *); -extern void __delayacct_freepages_start(void); -extern void __delayacct_freepages_end(void); - -static inline int delayacct_is_task_waiting_on_io(struct task_struct *p) -{ - if (p->delays) - return (p->delays->flags & DELAYACCT_PF_BLKIO); - else - return 0; -} - -static inline void delayacct_set_flag(int flag) -{ - if (current->delays) - current->delays->flags |= flag; -} - -static inline void delayacct_clear_flag(int flag) -{ - if (current->delays) - current->delays->flags &= ~flag; -} - -static inline void delayacct_tsk_init(struct task_struct *tsk) -{ - /* reinitialize in case parent's non-null pointer was dup'ed*/ - tsk->delays = NULL; - if (delayacct_on) - __delayacct_tsk_init(tsk); -} - -/* Free tsk->delays. Called from bad fork and __put_task_struct - * where there's no risk of tsk->delays being accessed elsewhere - */ -static inline void delayacct_tsk_free(struct task_struct *tsk) -{ - if (tsk->delays) - kmem_cache_free(delayacct_cache, tsk->delays); - tsk->delays = NULL; -} - -static inline void delayacct_blkio_start(void) -{ - delayacct_set_flag(DELAYACCT_PF_BLKIO); - if (current->delays) - __delayacct_blkio_start(); -} - -static inline void delayacct_blkio_end(void) -{ - if (current->delays) - __delayacct_blkio_end(); - delayacct_clear_flag(DELAYACCT_PF_BLKIO); -} - -static inline int delayacct_add_tsk(struct taskstats *d, - struct task_struct *tsk) -{ - if (!delayacct_on || !tsk->delays) - return 0; - return __delayacct_add_tsk(d, tsk); -} - -static inline __u64 delayacct_blkio_ticks(struct task_struct *tsk) -{ - if (tsk->delays) - return __delayacct_blkio_ticks(tsk); - return 0; -} - -static inline void delayacct_freepages_start(void) -{ - if (current->delays) - __delayacct_freepages_start(); -} - -static inline void delayacct_freepages_end(void) -{ - if (current->delays) - __delayacct_freepages_end(); -} - -#else -static inline void delayacct_set_flag(int flag) -{} -static inline void delayacct_clear_flag(int flag) -{} -static inline void delayacct_init(void) -{} -static inline void delayacct_tsk_init(struct task_struct *tsk) -{} -static inline void delayacct_tsk_free(struct task_struct *tsk) -{} -static inline void delayacct_blkio_start(void) -{} -static inline void delayacct_blkio_end(void) -{} -static inline int delayacct_add_tsk(struct taskstats *d, - struct task_struct *tsk) -{ return 0; } -static inline __u64 delayacct_blkio_ticks(struct task_struct *tsk) -{ return 0; } -static inline int delayacct_is_task_waiting_on_io(struct task_struct *p) -{ return 0; } -static inline void delayacct_freepages_start(void) -{} -static inline void delayacct_freepages_end(void) -{} - -#endif /* CONFIG_TASK_DELAY_ACCT */ - -#endif |