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