rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #undef TRACE_SYSTEM |
| 3 | #define TRACE_SYSTEM lock |
| 4 | |
| 5 | #if !defined(_TRACE_LOCK_H) || defined(TRACE_HEADER_MULTI_READ) |
| 6 | #define _TRACE_LOCK_H |
| 7 | |
| 8 | #include <linux/lockdep.h> |
| 9 | #include <linux/tracepoint.h> |
| 10 | |
| 11 | #ifdef CONFIG_LOCKDEP |
| 12 | |
| 13 | TRACE_EVENT(lock_acquire, |
| 14 | |
| 15 | TP_PROTO(struct lockdep_map *lock, unsigned int subclass, |
| 16 | int trylock, int read, int check, |
| 17 | struct lockdep_map *next_lock, unsigned long ip), |
| 18 | |
| 19 | TP_ARGS(lock, subclass, trylock, read, check, next_lock, ip), |
| 20 | |
| 21 | TP_STRUCT__entry( |
| 22 | __field(unsigned int, flags) |
| 23 | __string(name, lock->name) |
| 24 | __field(void *, lockdep_addr) |
| 25 | ), |
| 26 | |
| 27 | TP_fast_assign( |
| 28 | __entry->flags = (trylock ? 1 : 0) | (read ? 2 : 0); |
| 29 | __assign_str(name, lock->name); |
| 30 | __entry->lockdep_addr = lock; |
| 31 | ), |
| 32 | |
| 33 | TP_printk("%p %s%s%s", __entry->lockdep_addr, |
| 34 | (__entry->flags & 1) ? "try " : "", |
| 35 | (__entry->flags & 2) ? "read " : "", |
| 36 | __get_str(name)) |
| 37 | ); |
| 38 | |
| 39 | DECLARE_EVENT_CLASS(lock, |
| 40 | |
| 41 | TP_PROTO(struct lockdep_map *lock, unsigned long ip), |
| 42 | |
| 43 | TP_ARGS(lock, ip), |
| 44 | |
| 45 | TP_STRUCT__entry( |
| 46 | __string( name, lock->name ) |
| 47 | __field( void *, lockdep_addr ) |
| 48 | ), |
| 49 | |
| 50 | TP_fast_assign( |
| 51 | __assign_str(name, lock->name); |
| 52 | __entry->lockdep_addr = lock; |
| 53 | ), |
| 54 | |
| 55 | TP_printk("%p %s", __entry->lockdep_addr, __get_str(name)) |
| 56 | ); |
| 57 | |
| 58 | DEFINE_EVENT(lock, lock_release, |
| 59 | |
| 60 | TP_PROTO(struct lockdep_map *lock, unsigned long ip), |
| 61 | |
| 62 | TP_ARGS(lock, ip) |
| 63 | ); |
| 64 | |
| 65 | #ifdef CONFIG_LOCK_STAT |
| 66 | |
| 67 | DEFINE_EVENT(lock, lock_contended, |
| 68 | |
| 69 | TP_PROTO(struct lockdep_map *lock, unsigned long ip), |
| 70 | |
| 71 | TP_ARGS(lock, ip) |
| 72 | ); |
| 73 | |
| 74 | DEFINE_EVENT(lock, lock_acquired, |
| 75 | |
| 76 | TP_PROTO(struct lockdep_map *lock, unsigned long ip), |
| 77 | |
| 78 | TP_ARGS(lock, ip) |
| 79 | ); |
| 80 | |
| 81 | #endif |
| 82 | #endif |
| 83 | |
| 84 | #endif /* _TRACE_LOCK_H */ |
| 85 | |
| 86 | /* This part must be outside protection */ |
| 87 | #include <trace/define_trace.h> |