[linux-block.git] / include / linux / task_work.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_TASK_WORK_H
#define _LINUX_TASK_WORK_H

#include <linux/list.h>
#include <linux/sched.h>

typedef void (*task_work_func_t)(struct callback_head *);

static inline void
init_task_work(struct callback_head *twork, task_work_func_t func)
{
	twork->func = func;
}

enum task_work_notify_mode {
	TWA_NONE,
	TWA_RESUME,
	TWA_SIGNAL,
	TWA_SIGNAL_NO_IPI,
};

static inline bool task_work_pending(struct task_struct *task)
{
	return READ_ONCE(task->task_works);
}

int task_work_add(struct task_struct *task, struct callback_head *twork,
			enum task_work_notify_mode mode);

struct callback_head *task_work_cancel_match(struct task_struct *task,
	bool (*match)(struct callback_head *, void *data), void *data);
struct callback_head *task_work_cancel(struct task_struct *, task_work_func_t);
void task_work_run(void);

static inline void exit_task_work(struct task_struct *task)
{
	task_work_run();
}

#endif	/* _LINUX_TASK_WORK_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
e73f8959 ON	2	#ifndef _LINUX_TASK_WORK_H
	3	#define _LINUX_TASK_WORK_H
	4
	5	#include <linux/list.h>
	6	#include <linux/sched.h>
	7
67d12145	8	typedef void (task_work_func_t)(struct callback_head );
e73f8959 ON	9
e73f8959 ON	10	static inline void
67d12145	11	init_task_work(struct callback_head *twork, task_work_func_t func)
e73f8959 ON	12	{
e73f8959 ON	13	twork->func = func;
e73f8959 ON	14	}
e73f8959 ON	15
91989c70 JA	16	enum task_work_notify_mode {
	17	TWA_NONE,
	18	TWA_RESUME,
	19	TWA_SIGNAL,
e788be95	20	TWA_SIGNAL_NO_IPI,
91989c70 JA	21	};
91989c70 JA	22
7f62d40d EB	23	static inline bool task_work_pending(struct task_struct *task)
	24	{
	25	return READ_ONCE(task->task_works);
	26	}
	27
91989c70 JA	28	int task_work_add(struct task_struct task, struct callback_head twork,
91989c70 JA	29	enum task_work_notify_mode mode);
e91b4816	30
c7aab1a7 JA	31	struct callback_head task_work_cancel_match(struct task_struct task,
c7aab1a7 JA	32	bool (match)(struct callback_head , void data), void data);
67d12145	33	struct callback_head task_work_cancel(struct task_struct , task_work_func_t);
e73f8959 ON	34	void task_work_run(void);
	35
	36	static inline void exit_task_work(struct task_struct *task)
	37	{
9da33de6	38	task_work_run();
e73f8959 ON	39	}
	40
	41	#endif /* _LINUX_TASK_WORK_H */