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Release 4.13 block/blk-mq-debugfs.h

Directory: block
#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; }

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

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

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

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

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

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

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

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

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

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#endif #endif

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Directory: block
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