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144 lines
2.8 KiB
144 lines
2.8 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#undef TRACE_SYSTEM |
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#define TRACE_SYSTEM lock |
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#if !defined(_TRACE_LOCK_H) || defined(TRACE_HEADER_MULTI_READ) |
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#define _TRACE_LOCK_H |
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#include <linux/sched.h> |
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#include <linux/tracepoint.h> |
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/* flags for lock:contention_begin */ |
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#define LCB_F_SPIN (1U << 0) |
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#define LCB_F_READ (1U << 1) |
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#define LCB_F_WRITE (1U << 2) |
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#define LCB_F_RT (1U << 3) |
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#define LCB_F_PERCPU (1U << 4) |
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#define LCB_F_MUTEX (1U << 5) |
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#ifdef CONFIG_LOCKDEP |
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#include <linux/lockdep.h> |
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TRACE_EVENT(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_STRUCT__entry( |
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__field(unsigned int, flags) |
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__string(name, lock->name) |
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__field(void *, lockdep_addr) |
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), |
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TP_fast_assign( |
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__entry->flags = (trylock ? 1 : 0) | (read ? 2 : 0); |
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__assign_str(name, lock->name); |
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__entry->lockdep_addr = lock; |
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), |
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TP_printk("%p %s%s%s", __entry->lockdep_addr, |
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(__entry->flags & 1) ? "try " : "", |
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(__entry->flags & 2) ? "read " : "", |
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__get_str(name)) |
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); |
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DECLARE_EVENT_CLASS(lock, |
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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_STRUCT__entry( |
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__string( name, lock->name ) |
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__field( void *, lockdep_addr ) |
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), |
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TP_fast_assign( |
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__assign_str(name, lock->name); |
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__entry->lockdep_addr = lock; |
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), |
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TP_printk("%p %s", __entry->lockdep_addr, __get_str(name)) |
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); |
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DEFINE_EVENT(lock, lock_release, |
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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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); |
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#ifdef CONFIG_LOCK_STAT |
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DEFINE_EVENT(lock, 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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); |
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DEFINE_EVENT(lock, lock_acquired, |
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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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); |
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#endif /* CONFIG_LOCK_STAT */ |
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#endif /* CONFIG_LOCKDEP */ |
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TRACE_EVENT(contention_begin, |
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TP_PROTO(void *lock, unsigned int flags), |
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TP_ARGS(lock, flags), |
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TP_STRUCT__entry( |
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__field(void *, lock_addr) |
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__field(unsigned int, flags) |
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), |
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TP_fast_assign( |
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__entry->lock_addr = lock; |
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__entry->flags = flags; |
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), |
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TP_printk("%p (flags=%s)", __entry->lock_addr, |
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__print_flags(__entry->flags, "|", |
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{ LCB_F_SPIN, "SPIN" }, |
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{ LCB_F_READ, "READ" }, |
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{ LCB_F_WRITE, "WRITE" }, |
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{ LCB_F_RT, "RT" }, |
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{ LCB_F_PERCPU, "PERCPU" }, |
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{ LCB_F_MUTEX, "MUTEX" } |
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)) |
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); |
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TRACE_EVENT(contention_end, |
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TP_PROTO(void *lock, int ret), |
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TP_ARGS(lock, ret), |
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TP_STRUCT__entry( |
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__field(void *, lock_addr) |
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__field(int, ret) |
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), |
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TP_fast_assign( |
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__entry->lock_addr = lock; |
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__entry->ret = ret; |
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), |
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TP_printk("%p (ret=%d)", __entry->lock_addr, __entry->ret) |
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); |
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#endif /* _TRACE_LOCK_H */ |
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/* This part must be outside protection */ |
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#include <trace/define_trace.h>
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