1 /* SPDX-License-Identifier: GPL-2.0 */
2 #undef TRACE_SYSTEM
3 #define TRACE_SYSTEM huge_memory
4 
5 #if !defined(__HUGE_MEMORY_H) || defined(TRACE_HEADER_MULTI_READ)
6 #define __HUGE_MEMORY_H
7 
8 #include  <linux/tracepoint.h>
9 
10 #define SCAN_STATUS							\
11 	EM( SCAN_FAIL,			"failed")			\
12 	EM( SCAN_SUCCEED,		"succeeded")			\
13 	EM( SCAN_PMD_NULL,		"pmd_null")			\
14 	EM( SCAN_EXCEED_NONE_PTE,	"exceed_none_pte")		\
15 	EM( SCAN_PTE_NON_PRESENT,	"pte_non_present")		\
16 	EM( SCAN_PAGE_RO,		"no_writable_page")		\
17 	EM( SCAN_LACK_REFERENCED_PAGE,	"lack_referenced_page")		\
18 	EM( SCAN_PAGE_NULL,		"page_null")			\
19 	EM( SCAN_SCAN_ABORT,		"scan_aborted")			\
20 	EM( SCAN_PAGE_COUNT,		"not_suitable_page_count")	\
21 	EM( SCAN_PAGE_LRU,		"page_not_in_lru")		\
22 	EM( SCAN_PAGE_LOCK,		"page_locked")			\
23 	EM( SCAN_PAGE_ANON,		"page_not_anon")		\
24 	EM( SCAN_PAGE_COMPOUND,		"page_compound")		\
25 	EM( SCAN_ANY_PROCESS,		"no_process_for_page")		\
26 	EM( SCAN_VMA_NULL,		"vma_null")			\
27 	EM( SCAN_VMA_CHECK,		"vma_check_failed")		\
28 	EM( SCAN_ADDRESS_RANGE,		"not_suitable_address_range")	\
29 	EM( SCAN_SWAP_CACHE_PAGE,	"page_swap_cache")		\
30 	EM( SCAN_DEL_PAGE_LRU,		"could_not_delete_page_from_lru")\
31 	EM( SCAN_ALLOC_HUGE_PAGE_FAIL,	"alloc_huge_page_failed")	\
32 	EM( SCAN_CGROUP_CHARGE_FAIL,	"ccgroup_charge_failed")	\
33 	EM( SCAN_EXCEED_SWAP_PTE,	"exceed_swap_pte")		\
34 	EMe(SCAN_TRUNCATED,		"truncated")			\
35 
36 #undef EM
37 #undef EMe
38 #define EM(a, b)	TRACE_DEFINE_ENUM(a);
39 #define EMe(a, b)	TRACE_DEFINE_ENUM(a);
40 
41 SCAN_STATUS
42 
43 #undef EM
44 #undef EMe
45 #define EM(a, b)	{a, b},
46 #define EMe(a, b)	{a, b}
47 
48 TRACE_EVENT(mm_khugepaged_scan_pmd,
49 
50 	TP_PROTO(struct mm_struct *mm, struct page *page, bool writable,
51 		 int referenced, int none_or_zero, int status, int unmapped),
52 
53 	TP_ARGS(mm, page, writable, referenced, none_or_zero, status, unmapped),
54 
55 	TP_STRUCT__entry(
56 		__field(struct mm_struct *, mm)
57 		__field(unsigned long, pfn)
58 		__field(bool, writable)
59 		__field(int, referenced)
60 		__field(int, none_or_zero)
61 		__field(int, status)
62 		__field(int, unmapped)
63 	),
64 
65 	TP_fast_assign(
66 		__entry->mm = mm;
67 		__entry->pfn = page ? page_to_pfn(page) : -1;
68 		__entry->writable = writable;
69 		__entry->referenced = referenced;
70 		__entry->none_or_zero = none_or_zero;
71 		__entry->status = status;
72 		__entry->unmapped = unmapped;
73 	),
74 
75 	TP_printk("mm=%p, scan_pfn=0x%lx, writable=%d, referenced=%d, none_or_zero=%d, status=%s, unmapped=%d",
76 		__entry->mm,
77 		__entry->pfn,
78 		__entry->writable,
79 		__entry->referenced,
80 		__entry->none_or_zero,
81 		__print_symbolic(__entry->status, SCAN_STATUS),
82 		__entry->unmapped)
83 );
84 
85 TRACE_EVENT(mm_collapse_huge_page,
86 
87 	TP_PROTO(struct mm_struct *mm, int isolated, int status),
88 
89 	TP_ARGS(mm, isolated, status),
90 
91 	TP_STRUCT__entry(
92 		__field(struct mm_struct *, mm)
93 		__field(int, isolated)
94 		__field(int, status)
95 	),
96 
97 	TP_fast_assign(
98 		__entry->mm = mm;
99 		__entry->isolated = isolated;
100 		__entry->status = status;
101 	),
102 
103 	TP_printk("mm=%p, isolated=%d, status=%s",
104 		__entry->mm,
105 		__entry->isolated,
106 		__print_symbolic(__entry->status, SCAN_STATUS))
107 );
108 
109 TRACE_EVENT(mm_collapse_huge_page_isolate,
110 
111 	TP_PROTO(struct page *page, int none_or_zero,
112 		 int referenced, bool  writable, int status),
113 
114 	TP_ARGS(page, none_or_zero, referenced, writable, status),
115 
116 	TP_STRUCT__entry(
117 		__field(unsigned long, pfn)
118 		__field(int, none_or_zero)
119 		__field(int, referenced)
120 		__field(bool, writable)
121 		__field(int, status)
122 	),
123 
124 	TP_fast_assign(
125 		__entry->pfn = page ? page_to_pfn(page) : -1;
126 		__entry->none_or_zero = none_or_zero;
127 		__entry->referenced = referenced;
128 		__entry->writable = writable;
129 		__entry->status = status;
130 	),
131 
132 	TP_printk("scan_pfn=0x%lx, none_or_zero=%d, referenced=%d, writable=%d, status=%s",
133 		__entry->pfn,
134 		__entry->none_or_zero,
135 		__entry->referenced,
136 		__entry->writable,
137 		__print_symbolic(__entry->status, SCAN_STATUS))
138 );
139 
140 TRACE_EVENT(mm_collapse_huge_page_swapin,
141 
142 	TP_PROTO(struct mm_struct *mm, int swapped_in, int referenced, int ret),
143 
144 	TP_ARGS(mm, swapped_in, referenced, ret),
145 
146 	TP_STRUCT__entry(
147 		__field(struct mm_struct *, mm)
148 		__field(int, swapped_in)
149 		__field(int, referenced)
150 		__field(int, ret)
151 	),
152 
153 	TP_fast_assign(
154 		__entry->mm = mm;
155 		__entry->swapped_in = swapped_in;
156 		__entry->referenced = referenced;
157 		__entry->ret = ret;
158 	),
159 
160 	TP_printk("mm=%p, swapped_in=%d, referenced=%d, ret=%d",
161 		__entry->mm,
162 		__entry->swapped_in,
163 		__entry->referenced,
164 		__entry->ret)
165 );
166 
167 #endif /* __HUGE_MEMORY_H */
168 #include <trace/define_trace.h>
169