Release 4.7 include/linux/delayacct.h

Directory: include/linux
/* 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;
}

Contributors
Person Tokens Prop Commits CommitProp
balbir singh balbir singh 33 100.00% 1 100.00%
Total 33 100.00% 1 100.00%



static inline void delayacct_set_flag(int flag)
{
	if (current->delays)
		current->delays->flags |= flag;
}

Contributors
Person Tokens Prop Commits CommitProp
shailabh nagar shailabh nagar 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%



static inline void delayacct_clear_flag(int flag)
{
	if (current->delays)
		current->delays->flags &= ~flag;
}

Contributors
Person Tokens Prop Commits CommitProp
shailabh nagar shailabh nagar 25 100.00% 1 100.00%
Total 25 100.00% 1 100.00%



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);
}

Contributors
Person Tokens Prop Commits CommitProp
shailabh nagar shailabh nagar 28 100.00% 1 100.00%
Total 28 100.00% 1 100.00%

/* 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;
}

Contributors
Person Tokens Prop Commits CommitProp
shailabh nagar shailabh nagar 33 100.00% 2 100.00%
Total 33 100.00% 2 100.00%



static inline void delayacct_blkio_start(void)
{
	delayacct_set_flag(DELAYACCT_PF_BLKIO);
	if (current->delays)
		__delayacct_blkio_start();
}

Contributors
Person Tokens Prop Commits CommitProp
shailabh nagar shailabh nagar 18 78.26% 1 50.00%
balbir singh balbir singh 5 21.74% 1 50.00%
Total 23 100.00% 2 100.00%



static inline void delayacct_blkio_end(void)
{
	if (current->delays)
		__delayacct_blkio_end();
	delayacct_clear_flag(DELAYACCT_PF_BLKIO);
}

Contributors
Person Tokens Prop Commits CommitProp
shailabh nagar shailabh nagar 18 78.26% 1 50.00%
balbir singh balbir singh 5 21.74% 1 50.00%
Total 23 100.00% 2 100.00%



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);
}

Contributors
Person Tokens Prop Commits CommitProp
shailabh nagar shailabh nagar 38 100.00% 2 100.00%
Total 38 100.00% 2 100.00%



static inline __u64 delayacct_blkio_ticks(struct task_struct *tsk)
{
	if (tsk->delays)
		return __delayacct_blkio_ticks(tsk);
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
shailabh nagar shailabh nagar 27 100.00% 1 100.00%
Total 27 100.00% 1 100.00%



static inline void delayacct_freepages_start(void)
{
	if (current->delays)
		__delayacct_freepages_start();
}

Contributors
Person Tokens Prop Commits CommitProp
keika kobayashi keika kobayashi 18 100.00% 1 100.00%
Total 18 100.00% 1 100.00%



static inline void delayacct_freepages_end(void)
{
	if (current->delays)
		__delayacct_freepages_end();
}

Contributors
Person Tokens Prop Commits CommitProp
keika kobayashi keika kobayashi 18 100.00% 1 100.00%
Total 18 100.00% 1 100.00%

#else


static inline void delayacct_set_flag(int flag)
{}
Contributors
Person Tokens Prop Commits CommitProp
shailabh nagar shailabh nagar 9 100.00% 1 100.00%
Total 9 100.00% 1 100.00%



static inline void delayacct_clear_flag(int flag)
{}
Contributors
Person Tokens Prop Commits CommitProp
shailabh nagar shailabh nagar 9 100.00% 1 100.00%
Total 9 100.00% 1 100.00%



static inline void delayacct_init(void)
{}
Contributors
Person Tokens Prop Commits CommitProp
shailabh nagar shailabh nagar 8 100.00% 1 100.00%
Total 8 100.00% 1 100.00%



static inline void delayacct_tsk_init(struct task_struct *tsk)
{}
Contributors
Person Tokens Prop Commits CommitProp
shailabh nagar shailabh nagar 11 100.00% 1 100.00%
Total 11 100.00% 1 100.00%



static inline void delayacct_tsk_free(struct task_struct *tsk)
{}
Contributors
Person Tokens Prop Commits CommitProp
shailabh nagar shailabh nagar 11 100.00% 2 100.00%
Total 11 100.00% 2 100.00%



static inline void delayacct_blkio_start(void)
{}
Contributors
Person Tokens Prop Commits CommitProp
shailabh nagar shailabh nagar 8 100.00% 1 100.00%
Total 8 100.00% 1 100.00%



static inline void delayacct_blkio_end(void)
{}
Contributors
Person Tokens Prop Commits CommitProp
shailabh nagar shailabh nagar 8 100.00% 1 100.00%
Total 8 100.00% 1 100.00%



static inline int delayacct_add_tsk(struct taskstats *d,
					struct task_struct *tsk)
{ return 0; }
Contributors
Person Tokens Prop Commits CommitProp
shailabh nagar shailabh nagar 20 100.00% 1 100.00%
Total 20 100.00% 1 100.00%



static inline __u64 delayacct_blkio_ticks(struct task_struct *tsk)
{ return 0; }
Contributors
Person Tokens Prop Commits CommitProp
shailabh nagar shailabh nagar 15 100.00% 1 100.00%
Total 15 100.00% 1 100.00%



static inline int delayacct_is_task_waiting_on_io(struct task_struct *p)
{ return 0; }
Contributors
Person Tokens Prop Commits CommitProp
balbir singh balbir singh 15 100.00% 1 100.00%
Total 15 100.00% 1 100.00%



static inline void delayacct_freepages_start(void)
{}
Contributors
Person Tokens Prop Commits CommitProp
keika kobayashi keika kobayashi 8 100.00% 1 100.00%
Total 8 100.00% 1 100.00%



static inline void delayacct_freepages_end(void)
{}

Contributors
Person Tokens Prop Commits CommitProp
keika kobayashi keika kobayashi 8 100.00% 1 100.00%
Total 8 100.00% 1 100.00%

#endif /* CONFIG_TASK_DELAY_ACCT */

#endif
Overall Contributors
Person Tokens Prop Commits CommitProp
shailabh nagar shailabh nagar 407 75.23% 6 60.00%
keika kobayashi keika kobayashi 66 12.20% 1 10.00%
balbir singh balbir singh 63 11.65% 1 10.00%
tejun heo tejun heo 3 0.55% 1 10.00%
christoph lameter christoph lameter 2 0.37% 1 10.00%
Total 541 100.00% 10 100.00%
  Directory: include/linux

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
	Person	Tokens	Prop	Commits	CommitProp
balbir singh	balbir singh	33	100.00%	1	100.00%
	Total	33	100.00%	1	100.00%
cregit-Linux how code gets into the kernel

Release 4.7 include/linux/delayacct.h

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Overall Contributors
