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1 | /* SPDX-License-Identifier: GPL-2.0 */ |
---|---|
2 | #undef TRACE_SYSTEM |
3 | #define TRACE_SYSTEM vmalloc |
4 | |
5 | #if !defined(_TRACE_VMALLOC_H) || defined(TRACE_HEADER_MULTI_READ) |
6 | #define _TRACE_VMALLOC_H |
7 | |
8 | #include <linux/tracepoint.h> |
9 | |
10 | /** |
11 | * alloc_vmap_area - called when a new vmap allocation occurs |
12 | * @addr: an allocated address |
13 | * @size: a requested size |
14 | * @align: a requested alignment |
15 | * @vstart: a requested start range |
16 | * @vend: a requested end range |
17 | * @failed: an allocation failed or not |
18 | * |
19 | * This event is used for a debug purpose, it can give an extra |
20 | * information for a developer about how often it occurs and which |
21 | * parameters are passed for further validation. |
22 | */ |
23 | TRACE_EVENT(alloc_vmap_area, |
24 | |
25 | TP_PROTO(unsigned long addr, unsigned long size, unsigned long align, |
26 | unsigned long vstart, unsigned long vend, int failed), |
27 | |
28 | TP_ARGS(addr, size, align, vstart, vend, failed), |
29 | |
30 | TP_STRUCT__entry( |
31 | __field(unsigned long, addr) |
32 | __field(unsigned long, size) |
33 | __field(unsigned long, align) |
34 | __field(unsigned long, vstart) |
35 | __field(unsigned long, vend) |
36 | __field(int, failed) |
37 | ), |
38 | |
39 | TP_fast_assign( |
40 | __entry->addr = addr; |
41 | __entry->size = size; |
42 | __entry->align = align; |
43 | __entry->vstart = vstart; |
44 | __entry->vend = vend; |
45 | __entry->failed = failed; |
46 | ), |
47 | |
48 | TP_printk("va_start: %lu size=%lu align=%lu vstart=0x%lx vend=0x%lx failed=%d", |
49 | __entry->addr, __entry->size, __entry->align, |
50 | __entry->vstart, __entry->vend, __entry->failed) |
51 | ); |
52 | |
53 | /** |
54 | * purge_vmap_area_lazy - called when vmap areas were lazily freed |
55 | * @start: purging start address |
56 | * @end: purging end address |
57 | * @npurged: numbed of purged vmap areas |
58 | * |
59 | * This event is used for a debug purpose. It gives some |
60 | * indication about start:end range and how many objects |
61 | * are released. |
62 | */ |
63 | TRACE_EVENT(purge_vmap_area_lazy, |
64 | |
65 | TP_PROTO(unsigned long start, unsigned long end, |
66 | unsigned int npurged), |
67 | |
68 | TP_ARGS(start, end, npurged), |
69 | |
70 | TP_STRUCT__entry( |
71 | __field(unsigned long, start) |
72 | __field(unsigned long, end) |
73 | __field(unsigned int, npurged) |
74 | ), |
75 | |
76 | TP_fast_assign( |
77 | __entry->start = start; |
78 | __entry->end = end; |
79 | __entry->npurged = npurged; |
80 | ), |
81 | |
82 | TP_printk("start=0x%lx end=0x%lx num_purged=%u", |
83 | __entry->start, __entry->end, __entry->npurged) |
84 | ); |
85 | |
86 | /** |
87 | * free_vmap_area_noflush - called when a vmap area is freed |
88 | * @va_start: a start address of VA |
89 | * @nr_lazy: number of current lazy pages |
90 | * @nr_lazy_max: number of maximum lazy pages |
91 | * |
92 | * This event is used for a debug purpose. It gives some |
93 | * indication about a VA that is released, number of current |
94 | * outstanding areas and a maximum allowed threshold before |
95 | * dropping all of them. |
96 | */ |
97 | TRACE_EVENT(free_vmap_area_noflush, |
98 | |
99 | TP_PROTO(unsigned long va_start, unsigned long nr_lazy, |
100 | unsigned long nr_lazy_max), |
101 | |
102 | TP_ARGS(va_start, nr_lazy, nr_lazy_max), |
103 | |
104 | TP_STRUCT__entry( |
105 | __field(unsigned long, va_start) |
106 | __field(unsigned long, nr_lazy) |
107 | __field(unsigned long, nr_lazy_max) |
108 | ), |
109 | |
110 | TP_fast_assign( |
111 | __entry->va_start = va_start; |
112 | __entry->nr_lazy = nr_lazy; |
113 | __entry->nr_lazy_max = nr_lazy_max; |
114 | ), |
115 | |
116 | TP_printk("va_start=0x%lx nr_lazy=%lu nr_lazy_max=%lu", |
117 | __entry->va_start, __entry->nr_lazy, __entry->nr_lazy_max) |
118 | ); |
119 | |
120 | #endif /* _TRACE_VMALLOC_H */ |
121 | |
122 | /* This part must be outside protection */ |
123 | #include <trace/define_trace.h> |
124 |
Warning: This file is not a C or C++ file. It does not have highlighting.