instrumentation/events/lttng-module/compaction.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 #undef TRACE_SYSTEM
   3 #define TRACE_SYSTEM compaction
   4
   5 #if !defined(LTTNG_TRACE_COMPACTION_H) || defined(TRACE_HEADER_MULTI_READ)
   6 #define LTTNG_TRACE_COMPACTION_H
   7
   8 #include <probes/lttng-tracepoint-event.h>
   9 #include <linux/types.h>
  10
  11 LTTNG_TRACEPOINT_EVENT_CLASS(compaction_isolate_template,
  12
  13         TP_PROTO(unsigned long start_pfn,
  14                 unsigned long end_pfn,
  15                 unsigned long nr_scanned,
  16                 unsigned long nr_taken),
  17
  18         TP_ARGS(start_pfn, end_pfn, nr_scanned, nr_taken),
  19
  20         TP_FIELDS(
  21                 ctf_integer(unsigned long, start_pfn, start_pfn)
  22                 ctf_integer(unsigned long, end_pfn, end_pfn)
  23                 ctf_integer(unsigned long, nr_scanned, nr_scanned)
  24                 ctf_integer(unsigned long, nr_taken, nr_taken)
  25         )
  26 )
  27
  28 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(compaction_isolate_template,
  29
  30         mm_compaction_isolate_migratepages,
  31
  32         compaction_isolate_migratepages,
  33
  34         TP_PROTO(unsigned long start_pfn,
  35                 unsigned long end_pfn,
  36                 unsigned long nr_scanned,
  37                 unsigned long nr_taken),
  38
  39         TP_ARGS(start_pfn, end_pfn, nr_scanned, nr_taken)
  40 )
  41
  42 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(compaction_isolate_template,
  43
  44         mm_compaction_isolate_freepages,
  45
  46         compaction_isolate_freepages,
  47
  48         TP_PROTO(unsigned long start_pfn,
  49                 unsigned long end_pfn,
  50                 unsigned long nr_scanned,
  51                 unsigned long nr_taken),
  52
  53         TP_ARGS(start_pfn, end_pfn, nr_scanned, nr_taken)
  54 )
  55
  56 LTTNG_TRACEPOINT_EVENT_CODE_MAP(mm_compaction_migratepages,
  57
  58         compaction_migratepages,
  59
  60         TP_PROTO(unsigned long nr_all,
  61                 int migrate_rc,
  62                 struct list_head *migratepages),
  63
  64         TP_ARGS(nr_all, migrate_rc, migratepages),
  65
  66         TP_locvar(
  67                 unsigned long nr_failed;
  68         ),
  69
  70         TP_code_pre(
  71                 tp_locvar->nr_failed = 0;
  72
  73                 {
  74                         struct list_head *page_lru;
  75
  76                         if (migrate_rc >= 0)
  77                                 tp_locvar->nr_failed = migrate_rc;
  78                         else
  79                                 list_for_each(page_lru, migratepages)
  80                                         tp_locvar->nr_failed++;
  81                 }
  82         ),
  83
  84         TP_FIELDS(
  85                 ctf_integer(unsigned long, nr_migrated, nr_all - tp_locvar->nr_failed)
  86                 ctf_integer(unsigned long, nr_failed, tp_locvar->nr_failed)
  87         ),
  88
  89         TP_code_post()
  90 )
  91
  92 #endif /* LTTNG_TRACE_COMPACTION_H */
  93
  94 /* This part must be outside protection */
  95 #include <probes/define_trace.h>