1/* SPDX-License-Identifier: GPL-2.0 */
2
3#ifndef _BLOCK_BLK_PM_H_
4#define _BLOCK_BLK_PM_H_
5
6#include <linux/pm_runtime.h>
7
8#ifdef CONFIG_PM
9static inline int blk_pm_resume_queue(const bool pm, struct request_queue *q)
10{
11 if (!q->dev || !blk_queue_pm_only(q))
12 return 1; /* Nothing to do */
13 if (pm && q->rpm_status != RPM_SUSPENDED)
14 return 1; /* Request allowed */
15 pm_request_resume(dev: q->dev);
16 return 0;
17}
18
19static inline void blk_pm_mark_last_busy(struct request *rq)
20{
21 if (rq->q->dev && !(rq->rq_flags & RQF_PM))
22 pm_runtime_mark_last_busy(dev: rq->q->dev);
23}
24#else
25static inline int blk_pm_resume_queue(const bool pm, struct request_queue *q)
26{
27 return 1;
28}
29
30static inline void blk_pm_mark_last_busy(struct request *rq)
31{
32}
33#endif
34
35#endif /* _BLOCK_BLK_PM_H_ */
36

source code of linux/block/blk-pm.h