58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
#if !defined(_TRACE_LOCKDEP_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_LOCKDEP_H
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#include <linux/lockdep.h>
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#include <linux/tracepoint.h>
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM lock
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#ifdef CONFIG_LOCKDEP
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TRACE_FORMAT(lock_acquire,
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TP_PROTO(struct lockdep_map *lock, unsigned int subclass,
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int trylock, int read, int check,
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struct lockdep_map *next_lock, unsigned long ip),
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TP_ARGS(lock, subclass, trylock, read, check, next_lock, ip),
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TP_FMT("%s%s%s", trylock ? "try " : "",
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read ? "read " : "", lock->name)
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);
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TRACE_FORMAT(lock_release,
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TP_PROTO(struct lockdep_map *lock, int nested, unsigned long ip),
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TP_ARGS(lock, nested, ip),
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TP_FMT("%s", lock->name)
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);
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#ifdef CONFIG_LOCK_STAT
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TRACE_FORMAT(lock_contended,
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TP_PROTO(struct lockdep_map *lock, unsigned long ip),
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TP_ARGS(lock, ip),
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TP_FMT("%s", lock->name)
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);
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TRACE_EVENT(lock_acquired,
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TP_PROTO(struct lockdep_map *lock, unsigned long ip, s64 waittime),
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TP_ARGS(lock, ip, waittime),
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TP_STRUCT__entry(
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__field(const char *, name)
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__field(unsigned long, wait_usec)
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__field(unsigned long, wait_nsec_rem)
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),
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TP_fast_assign(
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__entry->name = lock->name;
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__entry->wait_nsec_rem = do_div(waittime, NSEC_PER_USEC);
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__entry->wait_usec = (unsigned long) waittime;
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),
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TP_printk("%s (%lu.%03lu us)", __entry->name, __entry->wait_usec,
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__entry->wait_nsec_rem)
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);
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#endif
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#endif
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#endif /* _TRACE_LOCKDEP_H */
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