root/include/trace/events/migrate.h

INCLUDED FROM

#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                                            \
        {MIGRATE_ASYNC,         "MIGRATE_ASYNC"},               \
        {MIGRATE_SYNC_LIGHT,    "MIGRATE_SYNC_LIGHT"},          \
        {MIGRATE_SYNC,          "MIGRATE_SYNC"}         

#define MIGRATE_REASON                                          \
        {MR_COMPACTION,         "compaction"},                  \
        {MR_MEMORY_FAILURE,     "memory_failure"},              \
        {MR_MEMORY_HOTPLUG,     "memory_hotplug"},              \
        {MR_SYSCALL,            "syscall_or_cpuset"},           \
        {MR_MEMPOLICY_MBIND,    "mempolicy_mbind"},             \
        {MR_NUMA_MISPLACED,     "numa_misplaced"},              \
        {MR_CMA,                "cma"}

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>