Release 4.12 include/trace/events/migrate.h

#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")               \
        EMe(MR_CMA,             "cma")

/*
 * 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,
		 enum migrate_mode mode, int reason),

	TP_ARGS(succeeded, failed, mode, reason),

	TP_STRUCT__entry(
		__field(	unsigned long,		succeeded)
		__field(	unsigned long,		failed)
		__field(	enum migrate_mode,	mode)
		__field(	int,			reason)
	),

	TP_fast_assign(
		__entry->succeeded      = succeeded;
                __entry->failed         = failed;
                __entry->mode           = mode;
                __entry->reason         = reason;
	),

	TP_printk("nr_succeeded=%lu nr_failed=%lu mode=%s reason=%s",
		__entry->succeeded,
		__entry->failed,
		__print_symbolic(__entry->mode, MIGRATE_MODE),
		__print_symbolic(__entry->reason, MIGRATE_REASON))
);

TRACE_EVENT(mm_numa_migrate_ratelimit,

	TP_PROTO(struct task_struct *p, int dst_nid, unsigned long nr_pages),

	TP_ARGS(p, dst_nid, nr_pages),

	TP_STRUCT__entry(
                __array(        char,           comm,   TASK_COMM_LEN)
                __field(        pid_t,          pid)
                __field(        int,            dst_nid)
                __field(        unsigned long,  nr_pages)
        ),

	TP_fast_assign(
                memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
                __entry->pid            = p->pid;
                __entry->dst_nid        = dst_nid;
                __entry->nr_pages       = nr_pages;
        ),

	TP_printk("comm=%s pid=%d dst_nid=%d nr_pages=%lu",
                __entry->comm,
                __entry->pid,
                __entry->dst_nid,
                __entry->nr_pages)
);
#endif /* _TRACE_MIGRATE_H */

/* This part must be outside protection */
#include <trace/define_trace.h>
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Directory: include/trace/events

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