/* SPDX-License-Identifier: GPL-2.0 *//* * null_blk device driver tracepoints. * * Copyright (C) 2020 Western Digital Corporation or its affiliates. */ #undef TRACE_SYSTEM#define TRACE_SYSTEM nullb #if !defined(_TRACE_NULLB_H) || defined(TRACE_HEADER_MULTI_READ)#define _TRACE_NULLB_H #include <linux/tracepoint.h>#include <linux/trace_seq.h> #include "null_blk.h" const char *nullb_trace_disk_name(struct trace_seq *p, char *name); #define __print_disk_name(name) nullb_trace_disk_name(p, name) #ifndef TRACE_HEADER_MULTI_READstatic inline void __assign_disk_name(char *name, struct gendisk *disk){	if (disk)		memcpy(name, disk->disk_name, DISK_NAME_LEN);	else		memset(name, 0, DISK_NAME_LEN);}#endif TRACE_EVENT(nullb_zone_op,	    TP_PROTO(struct nullb_cmd *cmd, unsigned int zone_no,		     unsigned int zone_cond),	    TP_ARGS(cmd, zone_no, zone_cond),	    TP_STRUCT__entry(		__array(char, disk, DISK_NAME_LEN)		/*		 * __field() uses is_signed_type(). is_signed_type() does not		 * support bitwise types. Use __field_struct() instead because		 * it does not use is_signed_type().		 */		__field_struct(enum req_op, op)		__field(unsigned int, zone_no)		__field(unsigned int, zone_cond)	    ),	    TP_fast_assign(		__entry->op = req_op(blk_mq_rq_from_pdu(cmd));		__entry->zone_no = zone_no;		__entry->zone_cond = zone_cond;		__assign_disk_name(__entry->disk,			blk_mq_rq_from_pdu(cmd)->q->disk);	    ),	    TP_printk("%s req=%-15s zone_no=%u zone_cond=%-10s",		      __print_disk_name(__entry->disk),		      blk_op_str(__entry->op),		      __entry->zone_no,		      blk_zone_cond_str(__entry->zone_cond))); TRACE_EVENT(nullb_report_zones,	    TP_PROTO(struct nullb *nullb, unsigned int nr_zones),	    TP_ARGS(nullb, nr_zones),	    TP_STRUCT__entry(		__array(char, disk, DISK_NAME_LEN)		__field(unsigned int, nr_zones)	    ),	    TP_fast_assign(		__entry->nr_zones = nr_zones;		__assign_disk_name(__entry->disk, nullb->disk);	    ),	    TP_printk("%s nr_zones=%u",		      __print_disk_name(__entry->disk), __entry->nr_zones)); #endif /* _TRACE_NULLB_H */ #undef TRACE_INCLUDE_PATH#define TRACE_INCLUDE_PATH .#undef TRACE_INCLUDE_FILE#define TRACE_INCLUDE_FILE trace /* This part must be outside protection */#include <trace/define_trace.h>