LXR linux/include/trace/events/migrate.h

   1#undef TRACE_SYSTEM
   2#define TRACE_SYSTEM migrate
   3
   4#if !defined(_TRACE_MIGRATE_H) || defined(TRACE_HEADER_MULTI_READ)
   5#define _TRACE_MIGRATE_H
   6
   7#include <linux/tracepoint.h>
   8
   9#define MIGRATE_MODE                                            \
  10        EM( MIGRATE_ASYNC,      "MIGRATE_ASYNC")                \
  11        EM( MIGRATE_SYNC_LIGHT, "MIGRATE_SYNC_LIGHT")           \
  12        EMe(MIGRATE_SYNC,       "MIGRATE_SYNC")
  13
  14
  15#define MIGRATE_REASON                                          \
  16        EM( MR_COMPACTION,      "compaction")                   \
  17        EM( MR_MEMORY_FAILURE,  "memory_failure")               \
  18        EM( MR_MEMORY_HOTPLUG,  "memory_hotplug")               \
  19        EM( MR_SYSCALL,         "syscall_or_cpuset")            \
  20        EM( MR_MEMPOLICY_MBIND, "mempolicy_mbind")              \
  21        EM( MR_NUMA_MISPLACED,  "numa_misplaced")               \
  22        EMe(MR_CMA,             "cma")
  23
  24/*
  25 * First define the enums in the above macros to be exported to userspace
  26 * via TRACE_DEFINE_ENUM().
  27 */
  28#undef EM
  29#undef EMe
  30#define EM(a, b)        TRACE_DEFINE_ENUM(a);
  31#define EMe(a, b)       TRACE_DEFINE_ENUM(a);
  32
  33MIGRATE_MODE
  34MIGRATE_REASON
  35
  36/*
  37 * Now redefine the EM() and EMe() macros to map the enums to the strings
  38 * that will be printed in the output.
  39 */
  40#undef EM
  41#undef EMe
  42#define EM(a, b)        {a, b},
  43#define EMe(a, b)       {a, b}
  44
  45TRACE_EVENT(mm_migrate_pages,
  46
  47        TP_PROTO(unsigned long succeeded, unsigned long failed,
  48                 enum migrate_mode mode, int reason),
  49
  50        TP_ARGS(succeeded, failed, mode, reason),
  51
  52        TP_STRUCT__entry(
  53                __field(        unsigned long,          succeeded)
  54                __field(        unsigned long,          failed)
  55                __field(        enum migrate_mode,      mode)
  56                __field(        int,                    reason)
  57        ),
  58
  59        TP_fast_assign(
  60                __entry->succeeded      = succeeded;
  61                __entry->failed         = failed;
  62                __entry->mode           = mode;
  63                __entry->reason         = reason;
  64        ),
  65
  66        TP_printk("nr_succeeded=%lu nr_failed=%lu mode=%s reason=%s",
  67                __entry->succeeded,
  68                __entry->failed,
  69                __print_symbolic(__entry->mode, MIGRATE_MODE),
  70                __print_symbolic(__entry->reason, MIGRATE_REASON))
  71);
  72
  73TRACE_EVENT(mm_numa_migrate_ratelimit,
  74
  75        TP_PROTO(struct task_struct *p, int dst_nid, unsigned long nr_pages),
  76
  77        TP_ARGS(p, dst_nid, nr_pages),
  78
  79        TP_STRUCT__entry(
  80                __array(        char,           comm,   TASK_COMM_LEN)
  81                __field(        pid_t,          pid)
  82                __field(        int,            dst_nid)
  83                __field(        unsigned long,  nr_pages)
  84        ),
  85
  86        TP_fast_assign(
  87                memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
  88                __entry->pid            = p->pid;
  89                __entry->dst_nid        = dst_nid;
  90                __entry->nr_pages       = nr_pages;
  91        ),
  92
  93        TP_printk("comm=%s pid=%d dst_nid=%d nr_pages=%lu",
  94                __entry->comm,
  95                __entry->pid,
  96                __entry->dst_nid,
  97                __entry->nr_pages)
  98);
  99#endif /* _TRACE_MIGRATE_H */
 100
 101/* This part must be outside protection */
 102#include <trace/define_trace.h>
 103