include/trace/events/compaction.h

   1 #undef TRACE_SYSTEM
   2 #define TRACE_SYSTEM compaction
   3
   4 #if !defined(_TRACE_COMPACTION_H) || defined(TRACE_HEADER_MULTI_READ)
   5 #define _TRACE_COMPACTION_H
   6
   7 #include <linux/types.h>
   8 #include <linux/list.h>
   9 #include <linux/tracepoint.h>
  10 #include <trace/events/gfpflags.h>
  11
  12 DECLARE_EVENT_CLASS(mm_compaction_isolate_template,
  13
  14         TP_PROTO(unsigned long nr_scanned,
  15                 unsigned long nr_taken),
  16
  17         TP_ARGS(nr_scanned, nr_taken),
  18
  19         TP_STRUCT__entry(
  20                 __field(unsigned long, nr_scanned)
  21                 __field(unsigned long, nr_taken)
  22         ),
  23
  24         TP_fast_assign(
  25                 __entry->nr_scanned = nr_scanned;
  26                 __entry->nr_taken = nr_taken;
  27         ),
  28
  29         TP_printk("nr_scanned=%lu nr_taken=%lu",
  30                 __entry->nr_scanned,
  31                 __entry->nr_taken)
  32 );
  33
  34 DEFINE_EVENT(mm_compaction_isolate_template, mm_compaction_isolate_migratepages,
  35
  36         TP_PROTO(unsigned long nr_scanned,
  37                 unsigned long nr_taken),
  38
  39         TP_ARGS(nr_scanned, nr_taken)
  40 );
  41
  42 DEFINE_EVENT(mm_compaction_isolate_template, mm_compaction_isolate_freepages,
  43         TP_PROTO(unsigned long nr_scanned,
  44                 unsigned long nr_taken),
  45
  46         TP_ARGS(nr_scanned, nr_taken)
  47 );
  48
  49 TRACE_EVENT(mm_compaction_migratepages,
  50
  51         TP_PROTO(unsigned long nr_all,
  52                 int migrate_rc,
  53                 struct list_head *migratepages),
  54
  55         TP_ARGS(nr_all, migrate_rc, migratepages),
  56
  57         TP_STRUCT__entry(
  58                 __field(unsigned long, nr_migrated)
  59                 __field(unsigned long, nr_failed)
  60         ),
  61
  62         TP_fast_assign(
  63                 unsigned long nr_failed = 0;
  64                 struct list_head *page_lru;
  65
  66                 /*
  67                  * migrate_pages() returns either a non-negative number
  68                  * with the number of pages that failed migration, or an
  69                  * error code, in which case we need to count the remaining
  70                  * pages manually
  71                  */
  72                 if (migrate_rc >= 0)
  73                         nr_failed = migrate_rc;
  74                 else
  75                         list_for_each(page_lru, migratepages)
  76                                 nr_failed++;
  77
  78                 __entry->nr_migrated = nr_all - nr_failed;
  79                 __entry->nr_failed = nr_failed;
  80         ),
  81
  82         TP_printk("nr_migrated=%lu nr_failed=%lu",
  83                 __entry->nr_migrated,
  84                 __entry->nr_failed)
  85 );
  86
  87 TRACE_EVENT(mm_compaction_begin,
  88         TP_PROTO(unsigned long zone_start, unsigned long migrate_start,
  89                 unsigned long free_start, unsigned long zone_end),
  90
  91         TP_ARGS(zone_start, migrate_start, free_start, zone_end),
  92
  93         TP_STRUCT__entry(
  94                 __field(unsigned long, zone_start)
  95                 __field(unsigned long, migrate_start)
  96                 __field(unsigned long, free_start)
  97                 __field(unsigned long, zone_end)
  98         ),
  99
 100         TP_fast_assign(
 101                 __entry->zone_start = zone_start;
 102                 __entry->migrate_start = migrate_start;
 103                 __entry->free_start = free_start;
 104                 __entry->zone_end = zone_end;
 105         ),
 106
 107         TP_printk("zone_start=0x%lx migrate_start=0x%lx free_start=0x%lx zone_end=0x%lx",
 108                 __entry->zone_start,
 109                 __entry->migrate_start,
 110                 __entry->free_start,
 111                 __entry->zone_end)
 112 );
 113
 114 TRACE_EVENT(mm_compaction_end,
 115         TP_PROTO(int status),
 116
 117         TP_ARGS(status),
 118
 119         TP_STRUCT__entry(
 120                 __field(int, status)
 121         ),
 122
 123         TP_fast_assign(
 124                 __entry->status = status;
 125         ),
 126
 127         TP_printk("status=%d", __entry->status)
 128 );
 129
 130 #endif /* _TRACE_COMPACTION_H */
 131
 132 /* This part must be outside protection */
 133 #include <trace/define_trace.h>