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| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | #undef TRACE_SYSTEM |
| 3 | #define TRACE_SYSTEM mmap_lock |
| 4 | |
| 5 | #if !defined(_TRACE_MMAP_LOCK_H) || defined(TRACE_HEADER_MULTI_READ) |
| 6 | #define _TRACE_MMAP_LOCK_H |
| 7 | |
| 8 | #include <linux/tracepoint.h> |
| 9 | #include <linux/types.h> |
| 10 | |
| 11 | struct mm_struct; |
| 12 | |
| 13 | extern int trace_mmap_lock_reg(void); |
| 14 | extern void trace_mmap_lock_unreg(void); |
| 15 | |
| 16 | DECLARE_EVENT_CLASS(mmap_lock, |
| 17 | |
| 18 | TP_PROTO(struct mm_struct *mm, const char *memcg_path, bool write), |
| 19 | |
| 20 | TP_ARGS(mm, memcg_path, write), |
| 21 | |
| 22 | TP_STRUCT__entry( |
| 23 | __field(struct mm_struct *, mm) |
| 24 | __string(memcg_path, memcg_path) |
| 25 | __field(bool, write) |
| 26 | ), |
| 27 | |
| 28 | TP_fast_assign( |
| 29 | __entry->mm = mm; |
| 30 | __assign_str(memcg_path, memcg_path); |
| 31 | __entry->write = write; |
| 32 | ), |
| 33 | |
| 34 | TP_printk( |
| 35 | "mm=%p memcg_path=%s write=%s", |
| 36 | __entry->mm, |
| 37 | __get_str(memcg_path), |
| 38 | __entry->write ? "true" : "false" |
| 39 | ) |
| 40 | ); |
| 41 | |
| 42 | #define DEFINE_MMAP_LOCK_EVENT(name) \ |
| 43 | DEFINE_EVENT_FN(mmap_lock, name, \ |
| 44 | TP_PROTO(struct mm_struct *mm, const char *memcg_path, \ |
| 45 | bool write), \ |
| 46 | TP_ARGS(mm, memcg_path, write), \ |
| 47 | trace_mmap_lock_reg, trace_mmap_lock_unreg) |
| 48 | |
| 49 | DEFINE_MMAP_LOCK_EVENT(mmap_lock_start_locking); |
| 50 | DEFINE_MMAP_LOCK_EVENT(mmap_lock_released); |
| 51 | |
| 52 | TRACE_EVENT_FN(mmap_lock_acquire_returned, |
| 53 | |
| 54 | TP_PROTO(struct mm_struct *mm, const char *memcg_path, bool write, |
| 55 | bool success), |
| 56 | |
| 57 | TP_ARGS(mm, memcg_path, write, success), |
| 58 | |
| 59 | TP_STRUCT__entry( |
| 60 | __field(struct mm_struct *, mm) |
| 61 | __string(memcg_path, memcg_path) |
| 62 | __field(bool, write) |
| 63 | __field(bool, success) |
| 64 | ), |
| 65 | |
| 66 | TP_fast_assign( |
| 67 | __entry->mm = mm; |
| 68 | __assign_str(memcg_path, memcg_path); |
| 69 | __entry->write = write; |
| 70 | __entry->success = success; |
| 71 | ), |
| 72 | |
| 73 | TP_printk( |
| 74 | "mm=%p memcg_path=%s write=%s success=%s", |
| 75 | __entry->mm, |
| 76 | __get_str(memcg_path), |
| 77 | __entry->write ? "true" : "false", |
| 78 | __entry->success ? "true" : "false" |
| 79 | ), |
| 80 | |
| 81 | trace_mmap_lock_reg, trace_mmap_lock_unreg |
| 82 | ); |
| 83 | |
| 84 | #endif /* _TRACE_MMAP_LOCK_H */ |
| 85 | |
| 86 | /* This part must be outside protection */ |
| 87 | #include <trace/define_trace.h> |
| 88 |
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