text: /* SPDX-License-Identifier: GPL-2.0 */
  #undef TRACE_SYSTEM
  #define TRACE_SYSTEM migrate
  
  #if !defined(_TRACE_MIGRATE_H) || defined(TRACE_HEADER_MULTI_READ)
  #define _TRACE_MIGRATE_H
  
  #include <linux/tracepoint.h>
  
  #define MIGRATE_MODE						\
  	EM( MIGRATE_ASYNC,	"MIGRATE_ASYNC")		\
  	EM( MIGRATE_SYNC_LIGHT,	"MIGRATE_SYNC_LIGHT")		\
  	EMe(MIGRATE_SYNC,	"MIGRATE_SYNC")
  
  
  #define MIGRATE_REASON						\
  	EM( MR_COMPACTION,	"compaction")			\
  	EM( MR_MEMORY_FAILURE,	"memory_failure")		\
  	EM( MR_MEMORY_HOTPLUG,	"memory_hotplug")		\
  	EM( MR_SYSCALL,		"syscall_or_cpuset")		\
  	EM( MR_MEMPOLICY_MBIND,	"mempolicy_mbind")		\
  	EM( MR_NUMA_MISPLACED,	"numa_misplaced")		\
  	EM( MR_CONTIG_RANGE,	"contig_range")			\
  	EM( MR_LONGTERM_PIN,	"longterm_pin")			\
  	EMe(MR_DEMOTION,	"demotion")
  
  /*
   * First define the enums in the above macros to be exported to userspace
   * via TRACE_DEFINE_ENUM().
   */
  #undef EM
  #undef EMe
  #define EM(a, b)	TRACE_DEFINE_ENUM(a);
  #define EMe(a, b)	TRACE_DEFINE_ENUM(a);
  
  MIGRATE_MODE
  MIGRATE_REASON
  
  /*
   * Now redefine the EM() and EMe() macros to map the enums to the strings
   * that will be printed in the output.
   */
  #undef EM
  #undef EMe
  #define EM(a, b)	{a, b},
  #define EMe(a, b)	{a, b}
  
  TRACE_EVENT(mm_migrate_pages,
  
  	TP_PROTO(unsigned long succeeded, unsigned long failed,
  		 unsigned long thp_succeeded, unsigned long thp_failed,
  		 unsigned long thp_split, enum migrate_mode mode, int reason),
  
  	TP_ARGS(succeeded, failed, thp_succeeded, thp_failed,
  		thp_split, mode, reason),
  
  	TP_STRUCT__entry(
  		__field(	unsigned long,		succeeded)
  		__field(	unsigned long,		failed)
  		__field(	unsigned long,		thp_succeeded)
  		__field(	unsigned long,		thp_failed)
  		__field(	unsigned long,		thp_split)
  		__field(	enum migrate_mode,	mode)
  		__field(	int,			reason)
  	),
  
  	TP_fast_assign(
  		__entry->succeeded	= succeeded;
  		__entry->failed		= failed;
  		__entry->thp_succeeded	= thp_succeeded;
  		__entry->thp_failed	= thp_failed;
  		__entry->thp_split	= thp_split;
  		__entry->mode		= mode;
  		__entry->reason		= reason;
  	),
  
  	TP_printk("nr_succeeded=%lu nr_failed=%lu nr_thp_succeeded=%lu nr_thp_failed=%lu nr_thp_split=%lu mode=%s reason=%s",
  		__entry->succeeded,
  		__entry->failed,
  		__entry->thp_succeeded,
  		__entry->thp_failed,
  		__entry->thp_split,
  		__print_symbolic(__entry->mode, MIGRATE_MODE),
  		__print_symbolic(__entry->reason, MIGRATE_REASON))
  );
  
  TRACE_EVENT(mm_migrate_pages_start,
  
  	TP_PROTO(enum migrate_mode mode, int reason),
  
  	TP_ARGS(mode, reason),
  
  	TP_STRUCT__entry(
  		__field(enum migrate_mode, mode)
  		__field(int, reason)
  	),
  
  	TP_fast_assign(
  		__entry->mode	= mode;
  		__entry->reason	= reason;
  	),
  
  	TP_printk("mode=%s reason=%s",
  		  __print_symbolic(__entry->mode, MIGRATE_MODE),
  		  __print_symbolic(__entry->reason, MIGRATE_REASON))
  );
  
  DECLARE_EVENT_CLASS(migration_pte,
  
  		TP_PROTO(unsigned long addr, unsigned long pte, int order),
  
  		TP_ARGS(addr, pte, order),
  
  		TP_STRUCT__entry(
  			__field(unsigned long, addr)
  			__field(unsigned long, pte)
  			__field(int, order)
  		),
  
  		TP_fast_assign(
  			__entry->addr = addr;
  			__entry->pte = pte;
  			__entry->order = order;
  		),
  
  		TP_printk("addr=%lx, pte=%lx order=%d", __entry->addr, __entry->pte, __entry->order)
  );
  
  DEFINE_EVENT(migration_pte, set_migration_pte,
  	TP_PROTO(unsigned long addr, unsigned long pte, int order),
  	TP_ARGS(addr, pte, order)
  );
  
  DEFINE_EVENT(migration_pte, remove_migration_pte,
  	TP_PROTO(unsigned long addr, unsigned long pte, int order),
  	TP_ARGS(addr, pte, order)
  );
  
  #endif /* _TRACE_MIGRATE_H */
  
  /* This part must be outside protection */
  #include <trace/define_trace.h>
  