1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_TASK_WORK_H 2 #ifndef _LINUX_TASK_WORK_H
3 #define _LINUX_TASK_WORK_H 3 #define _LINUX_TASK_WORK_H
4 4
5 #include <linux/list.h> 5 #include <linux/list.h>
6 #include <linux/sched.h> 6 #include <linux/sched.h>
7 7
8 typedef void (*task_work_func_t)(struct callba 8 typedef void (*task_work_func_t)(struct callback_head *);
9 9
10 static inline void 10 static inline void
11 init_task_work(struct callback_head *twork, ta 11 init_task_work(struct callback_head *twork, task_work_func_t func)
12 { 12 {
13 twork->func = func; 13 twork->func = func;
14 } 14 }
15 15
16 enum task_work_notify_mode { 16 enum task_work_notify_mode {
17 TWA_NONE, 17 TWA_NONE,
18 TWA_RESUME, 18 TWA_RESUME,
19 TWA_SIGNAL, 19 TWA_SIGNAL,
20 TWA_SIGNAL_NO_IPI, 20 TWA_SIGNAL_NO_IPI,
21 TWA_NMI_CURRENT, 21 TWA_NMI_CURRENT,
22 }; 22 };
23 23
24 static inline bool task_work_pending(struct ta 24 static inline bool task_work_pending(struct task_struct *task)
25 { 25 {
26 return READ_ONCE(task->task_works); 26 return READ_ONCE(task->task_works);
27 } 27 }
28 28
29 int task_work_add(struct task_struct *task, st 29 int task_work_add(struct task_struct *task, struct callback_head *twork,
30 enum task_work_notify_ 30 enum task_work_notify_mode mode);
31 31
32 struct callback_head *task_work_cancel_match(s 32 struct callback_head *task_work_cancel_match(struct task_struct *task,
33 bool (*match)(struct callback_head *, 33 bool (*match)(struct callback_head *, void *data), void *data);
34 struct callback_head *task_work_cancel_func(st 34 struct callback_head *task_work_cancel_func(struct task_struct *, task_work_func_t);
35 bool task_work_cancel(struct task_struct *task 35 bool task_work_cancel(struct task_struct *task, struct callback_head *cb);
36 void task_work_run(void); 36 void task_work_run(void);
37 37
38 static inline void exit_task_work(struct task_ 38 static inline void exit_task_work(struct task_struct *task)
39 { 39 {
40 task_work_run(); 40 task_work_run();
41 } 41 }
42 42
43 #endif /* _LINUX_TASK_WORK_H */ 43 #endif /* _LINUX_TASK_WORK_H */
44 44
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