linux-stable/block/blk-pm.h
Christoph Hellwig 0d945c1f96 block: remove the queue_lock indirection
With the legacy request path gone there is no good reason to keep
queue_lock as a pointer, we can always use the embedded lock now.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

Fixed floppy and blk-cgroup missing conversions and half done edits.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-11-15 12:17:28 -07:00

69 lines
1.4 KiB
C

/* 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 void blk_pm_request_resume(struct request_queue *q)
{
if (q->dev && (q->rpm_status == RPM_SUSPENDED ||
q->rpm_status == RPM_SUSPENDING))
pm_request_resume(q->dev);
}
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);
}
static inline void blk_pm_requeue_request(struct request *rq)
{
lockdep_assert_held(&rq->q->queue_lock);
if (rq->q->dev && !(rq->rq_flags & RQF_PM))
rq->q->nr_pending--;
}
static inline void blk_pm_add_request(struct request_queue *q,
struct request *rq)
{
lockdep_assert_held(&q->queue_lock);
if (q->dev && !(rq->rq_flags & RQF_PM))
q->nr_pending++;
}
static inline void blk_pm_put_request(struct request *rq)
{
lockdep_assert_held(&rq->q->queue_lock);
if (rq->q->dev && !(rq->rq_flags & RQF_PM))
--rq->q->nr_pending;
}
#else
static inline void blk_pm_request_resume(struct request_queue *q)
{
}
static inline void blk_pm_mark_last_busy(struct request *rq)
{
}
static inline void blk_pm_requeue_request(struct request *rq)
{
}
static inline void blk_pm_add_request(struct request_queue *q,
struct request *rq)
{
}
static inline void blk_pm_put_request(struct request *rq)
{
}
#endif
#endif /* _BLOCK_BLK_PM_H_ */