blk-mq-debugfs.h (2474B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef INT_BLK_MQ_DEBUGFS_H 3#define INT_BLK_MQ_DEBUGFS_H 4 5#ifdef CONFIG_BLK_DEBUG_FS 6 7#include <linux/seq_file.h> 8 9struct blk_mq_hw_ctx; 10 11struct blk_mq_debugfs_attr { 12 const char *name; 13 umode_t mode; 14 int (*show)(void *, struct seq_file *); 15 ssize_t (*write)(void *, const char __user *, size_t, loff_t *); 16 /* Set either .show or .seq_ops. */ 17 const struct seq_operations *seq_ops; 18}; 19 20int __blk_mq_debugfs_rq_show(struct seq_file *m, struct request *rq); 21int blk_mq_debugfs_rq_show(struct seq_file *m, void *v); 22 23void blk_mq_debugfs_register(struct request_queue *q); 24void blk_mq_debugfs_register_hctx(struct request_queue *q, 25 struct blk_mq_hw_ctx *hctx); 26void blk_mq_debugfs_unregister_hctx(struct blk_mq_hw_ctx *hctx); 27void blk_mq_debugfs_register_hctxs(struct request_queue *q); 28void blk_mq_debugfs_unregister_hctxs(struct request_queue *q); 29 30void blk_mq_debugfs_register_sched(struct request_queue *q); 31void blk_mq_debugfs_unregister_sched(struct request_queue *q); 32void blk_mq_debugfs_register_sched_hctx(struct request_queue *q, 33 struct blk_mq_hw_ctx *hctx); 34void blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx *hctx); 35 36void blk_mq_debugfs_register_rqos(struct rq_qos *rqos); 37void blk_mq_debugfs_unregister_rqos(struct rq_qos *rqos); 38#else 39static inline void blk_mq_debugfs_register(struct request_queue *q) 40{ 41} 42 43static inline void blk_mq_debugfs_register_hctx(struct request_queue *q, 44 struct blk_mq_hw_ctx *hctx) 45{ 46} 47 48static inline void blk_mq_debugfs_unregister_hctx(struct blk_mq_hw_ctx *hctx) 49{ 50} 51 52static inline void blk_mq_debugfs_register_hctxs(struct request_queue *q) 53{ 54} 55 56static inline void blk_mq_debugfs_unregister_hctxs(struct request_queue *q) 57{ 58} 59 60static inline void blk_mq_debugfs_register_sched(struct request_queue *q) 61{ 62} 63 64static inline void blk_mq_debugfs_unregister_sched(struct request_queue *q) 65{ 66} 67 68static inline void blk_mq_debugfs_register_sched_hctx(struct request_queue *q, 69 struct blk_mq_hw_ctx *hctx) 70{ 71} 72 73static inline void blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx *hctx) 74{ 75} 76 77static inline void blk_mq_debugfs_register_rqos(struct rq_qos *rqos) 78{ 79} 80 81static inline void blk_mq_debugfs_unregister_rqos(struct rq_qos *rqos) 82{ 83} 84#endif 85 86#ifdef CONFIG_BLK_DEBUG_FS_ZONED 87int queue_zone_wlock_show(void *data, struct seq_file *m); 88#else 89static inline int queue_zone_wlock_show(void *data, struct seq_file *m) 90{ 91 return 0; 92} 93#endif 94 95#endif