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Diffstat (limited to '')
| -rw-r--r-- | block/blk-pm.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/block/blk-pm.h b/block/blk-pm.h new file mode 100644 index 0000000000..8a5a0d4b35 --- /dev/null +++ b/block/blk-pm.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef _BLOCK_BLK_PM_H_ +#define _BLOCK_BLK_PM_H_ + +#include <linux/pm_runtime.h> + +#ifdef CONFIG_PM +static inline int blk_pm_resume_queue(const bool pm, struct request_queue *q) +{ + if (!q->dev || !blk_queue_pm_only(q)) + return 1; /* Nothing to do */ + if (pm && q->rpm_status != RPM_SUSPENDED) + return 1; /* Request allowed */ + pm_request_resume(q->dev); + return 0; +} + +static inline void blk_pm_mark_last_busy(struct request *rq) +{ + if (rq->q->dev && !(rq->rq_flags & RQF_PM)) + pm_runtime_mark_last_busy(rq->q->dev); +} +#else +static inline int blk_pm_resume_queue(const bool pm, struct request_queue *q) +{ + return 1; +} + +static inline void blk_pm_mark_last_busy(struct request *rq) +{ +} +#endif + +#endif /* _BLOCK_BLK_PM_H_ */ |