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

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