linux/block/blk-pm.h
Bart Van Assche 9fb407179c block: Remove unused blk_pm_*() function definitions
Commit a1ce35fa49 ("block: remove dead elevator code") removed the last
callers of blk_pm_requeue_request(), blk_pm_add_request() and
blk_pm_put_request(). Hence remove the definitions of these functions.
Removing these functions removes all users of the struct request nr_pending
member. Hence also remove 'nr_pending'. Note: 'nr_pending' is no longer
used since commit 7cedffec8e ("block: Make blk_get_request() block for
non-PM requests while suspended").

Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-02-22 06:33:48 -07:00

36 lines
763 B
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 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_ */