task_work.h

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#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;
}

int task_work_add(struct task_struct *task, struct callback_head *twork, bool);
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 */