56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
|
#ifndef INTERNAL_IO_WQ_H
|
||
|
|
#define INTERNAL_IO_WQ_H
|
||
|
|
|
||
|
|
struct io_wq;
|
||
|
|
|
||
|
|
enum {
|
||
|
|
IO_WQ_WORK_CANCEL = 1,
|
||
|
|
IO_WQ_WORK_HAS_MM = 2,
|
||
|
|
IO_WQ_WORK_HASHED = 4,
|
||
|
|
IO_WQ_WORK_NEEDS_USER = 8,
|
||
|
|
|
||
|
|
IO_WQ_HASH_SHIFT = 24, /* upper 8 bits are used for hash key */
|
||
|
|
};
|
||
|
|
|
||
|
|
enum io_wq_cancel {
|
||
|
|
IO_WQ_CANCEL_OK, /* cancelled before started */
|
||
|
|
IO_WQ_CANCEL_RUNNING, /* found, running, and attempted cancelled */
|
||
|
|
IO_WQ_CANCEL_NOTFOUND, /* work not found */
|
||
|
|
};
|
||
|
|
|
||
|
|
struct io_wq_work {
|
||
|
|
struct list_head list;
|
||
|
|
void (*func)(struct io_wq_work **);
|
||
|
|
unsigned flags;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define INIT_IO_WORK(work, _func) \
|
||
|
|
do { \
|
||
|
|
(work)->func = _func; \
|
||
|
|
(work)->flags = 0; \
|
||
|
|
} while (0) \
|
||
|
|
|
||
|
|
struct io_wq *io_wq_create(unsigned concurrency, struct mm_struct *mm);
|
||
|
|
void io_wq_destroy(struct io_wq *wq);
|
||
|
|
|
||
|
|
void io_wq_enqueue(struct io_wq *wq, struct io_wq_work *work);
|
||
|
|
void io_wq_enqueue_hashed(struct io_wq *wq, struct io_wq_work *work, void *val);
|
||
|
|
void io_wq_flush(struct io_wq *wq);
|
||
|
|
|
||
|
|
void io_wq_cancel_all(struct io_wq *wq);
|
||
|
|
enum io_wq_cancel io_wq_cancel_work(struct io_wq *wq, struct io_wq_work *cwork);
|
||
|
|
|
||
|
|
#if defined(CONFIG_IO_WQ)
|
||
|
|
extern void io_wq_worker_sleeping(struct task_struct *);
|
||
|
|
extern void io_wq_worker_running(struct task_struct *);
|
||
|
|
#else
|
||
|
|
static inline void io_wq_worker_sleeping(struct task_struct *tsk)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
static inline void io_wq_worker_running(struct task_struct *tsk)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|