[mirror_ubuntu-bionic-kernel.git] / block / blk-mq-debugfs.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef INT_BLK_MQ_DEBUGFS_H
#define INT_BLK_MQ_DEBUGFS_H

#ifdef CONFIG_BLK_DEBUG_FS

#include <linux/seq_file.h>

struct blk_mq_debugfs_attr {
	const char *name;
	umode_t mode;
	int (*show)(void *, struct seq_file *);
	ssize_t (*write)(void *, const char __user *, size_t, loff_t *);
	/* Set either .show or .seq_ops. */
	const struct seq_operations *seq_ops;
};

int __blk_mq_debugfs_rq_show(struct seq_file *m, struct request *rq);
int blk_mq_debugfs_rq_show(struct seq_file *m, void *v);

int blk_mq_debugfs_register(struct request_queue *q);
void blk_mq_debugfs_unregister(struct request_queue *q);
int blk_mq_debugfs_register_hctx(struct request_queue *q,
				 struct blk_mq_hw_ctx *hctx);
void blk_mq_debugfs_unregister_hctx(struct blk_mq_hw_ctx *hctx);
int blk_mq_debugfs_register_hctxs(struct request_queue *q);
void blk_mq_debugfs_unregister_hctxs(struct request_queue *q);

int blk_mq_debugfs_register_sched(struct request_queue *q);
void blk_mq_debugfs_unregister_sched(struct request_queue *q);
int blk_mq_debugfs_register_sched_hctx(struct request_queue *q,
				       struct blk_mq_hw_ctx *hctx);
void blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx *hctx);
#else
static inline int blk_mq_debugfs_register(struct request_queue *q)
{
	return 0;
}

static inline void blk_mq_debugfs_unregister(struct request_queue *q)
{
}

static inline int blk_mq_debugfs_register_hctx(struct request_queue *q,
					       struct blk_mq_hw_ctx *hctx)
{
	return 0;
}

static inline void blk_mq_debugfs_unregister_hctx(struct blk_mq_hw_ctx *hctx)
{
}

static inline int blk_mq_debugfs_register_hctxs(struct request_queue *q)
{
	return 0;
}

static inline void blk_mq_debugfs_unregister_hctxs(struct request_queue *q)
{
}

static inline int blk_mq_debugfs_register_sched(struct request_queue *q)
{
	return 0;
}

static inline void blk_mq_debugfs_unregister_sched(struct request_queue *q)
{
}

static inline int blk_mq_debugfs_register_sched_hctx(struct request_queue *q,
						     struct blk_mq_hw_ctx *hctx)
{
	return 0;
}

static inline void blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx *hctx)
{
}
#endif

#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
d173a251 OS	2	#ifndef INT_BLK_MQ_DEBUGFS_H
	3	#define INT_BLK_MQ_DEBUGFS_H
	4
	5	#ifdef CONFIG_BLK_DEBUG_FS
d332ce09 OS	6
	7	#include <linux/seq_file.h>
	8
	9	struct blk_mq_debugfs_attr {
	10	const char *name;
	11	umode_t mode;
	12	int (show)(void , struct seq_file *);
	13	ssize_t (write)(void , const char __user , size_t, loff_t );
	14	/* Set either .show or .seq_ops. */
	15	const struct seq_operations *seq_ops;
	16	};
	17
daaadb3e	18	int __blk_mq_debugfs_rq_show(struct seq_file m, struct request rq);
16b738f6 OS	19	int blk_mq_debugfs_rq_show(struct seq_file m, void v);
16b738f6 OS	20
d173a251 OS	21	int blk_mq_debugfs_register(struct request_queue *q);
d173a251 OS	22	void blk_mq_debugfs_unregister(struct request_queue *q);
9c1051aa OS	23	int blk_mq_debugfs_register_hctx(struct request_queue *q,
	24	struct blk_mq_hw_ctx *hctx);
	25	void blk_mq_debugfs_unregister_hctx(struct blk_mq_hw_ctx *hctx);
	26	int blk_mq_debugfs_register_hctxs(struct request_queue *q);
	27	void blk_mq_debugfs_unregister_hctxs(struct request_queue *q);
d332ce09 OS	28
	29	int blk_mq_debugfs_register_sched(struct request_queue *q);
	30	void blk_mq_debugfs_unregister_sched(struct request_queue *q);
	31	int blk_mq_debugfs_register_sched_hctx(struct request_queue *q,
	32	struct blk_mq_hw_ctx *hctx);
	33	void blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx *hctx);
d173a251 OS	34	#else
	35	static inline int blk_mq_debugfs_register(struct request_queue *q)
	36	{
	37	return 0;
	38	}
	39
	40	static inline void blk_mq_debugfs_unregister(struct request_queue *q)
	41	{
	42	}
	43
9c1051aa OS	44	static inline int blk_mq_debugfs_register_hctx(struct request_queue *q,
9c1051aa OS	45	struct blk_mq_hw_ctx *hctx)
d173a251 OS	46	{
	47	return 0;
	48	}
	49
9c1051aa OS	50	static inline void blk_mq_debugfs_unregister_hctx(struct blk_mq_hw_ctx *hctx)
	51	{
	52	}
	53
	54	static inline int blk_mq_debugfs_register_hctxs(struct request_queue *q)
	55	{
	56	return 0;
	57	}
	58
	59	static inline void blk_mq_debugfs_unregister_hctxs(struct request_queue *q)
d173a251 OS	60	{
d173a251 OS	61	}
d332ce09 OS	62
	63	static inline int blk_mq_debugfs_register_sched(struct request_queue *q)
	64	{
	65	return 0;
	66	}
	67
	68	static inline void blk_mq_debugfs_unregister_sched(struct request_queue *q)
	69	{
	70	}
	71
	72	static inline int blk_mq_debugfs_register_sched_hctx(struct request_queue *q,
	73	struct blk_mq_hw_ctx *hctx)
	74	{
	75	return 0;
	76	}
	77
	78	static inline void blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx *hctx)
	79	{
	80	}
d173a251 OS	81	#endif
	82
	83	#endif