b5a6b71b19
To be able to analyse problems in regard to hypervisor overhead
add a tracepoing for diagnose calls. It reports the number of
the diagnose issued, e.g.
sshd-1385 [002] .... 42.701431: diagnose: nr=0x9c
<idle>-0 [001] ..s. 43.587528: diagnose: nr=0x9c
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
44 lines
896 B
C
44 lines
896 B
C
/*
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* Tracepoint header for s390 diagnose calls
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*
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* Copyright IBM Corp. 2015
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* Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
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*/
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM s390
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#if !defined(_TRACE_S390_DIAG_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_S390_DIAG_H
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#include <linux/tracepoint.h>
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#undef TRACE_INCLUDE_PATH
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#undef TRACE_INCLUDE_FILE
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#define TRACE_INCLUDE_PATH asm/trace
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#define TRACE_INCLUDE_FILE diag
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TRACE_EVENT(diagnose,
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TP_PROTO(unsigned short nr),
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TP_ARGS(nr),
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TP_STRUCT__entry(
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__field(unsigned short, nr)
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),
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TP_fast_assign(
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__entry->nr = nr;
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),
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TP_printk("nr=0x%x", __entry->nr)
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);
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#ifdef CONFIG_TRACEPOINTS
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void trace_diagnose_norecursion(int diag_nr);
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#else
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static inline void trace_diagnose_norecursion(int diag_nr) { }
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#endif
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#endif /* _TRACE_S390_DIAG_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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