Cleanup: move to kernel style SPDX license identifiers

[lttng-modules.git] / instrumentation / events / lttng-module / compaction.h

diff --git a/instrumentation/events/lttng-module/compaction.h b/instrumentation/events/lttng-module/compaction.h
index 1b237fa45ab069141e2e8b6db745daa6edb9f9bb..c6db6d0585d2ffb876da4f38741448c57a2e4bfe 100644 (file)
--- a/instrumentation/events/lttng-module/compaction.h
+++ b/instrumentation/events/lttng-module/compaction.h
@@ -1,36 +1,81 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM compaction
 
-#if !defined(_TRACE_COMPACTION_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _TRACE_COMPACTION_H
+#if !defined(LTTNG_TRACE_COMPACTION_H) || defined(TRACE_HEADER_MULTI_READ)
+#define LTTNG_TRACE_COMPACTION_H
 
+#include <probes/lttng-tracepoint-event.h>
 #include <linux/types.h>
-#include <linux/tracepoint.h>
-#include <trace/events/gfpflags.h>
+#include <linux/version.h>
 
-DECLARE_EVENT_CLASS(mm_compaction_isolate_template,
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)
+
+LTTNG_TRACEPOINT_EVENT_CLASS(compaction_isolate_template,
+
+       TP_PROTO(unsigned long start_pfn,
+               unsigned long end_pfn,
+               unsigned long nr_scanned,
+               unsigned long nr_taken),
+
+       TP_ARGS(start_pfn, end_pfn, nr_scanned, nr_taken),
+
+       TP_FIELDS(
+               ctf_integer(unsigned long, start_pfn, start_pfn)
+               ctf_integer(unsigned long, end_pfn, end_pfn)
+               ctf_integer(unsigned long, nr_scanned, nr_scanned)
+               ctf_integer(unsigned long, nr_taken, nr_taken)
+       )
+)
+
+LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(compaction_isolate_template,
+
+       mm_compaction_isolate_migratepages,
+
+       compaction_isolate_migratepages,
+
+       TP_PROTO(unsigned long start_pfn,
+               unsigned long end_pfn,
+               unsigned long nr_scanned,
+               unsigned long nr_taken),
+
+       TP_ARGS(start_pfn, end_pfn, nr_scanned, nr_taken)
+)
+
+LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(compaction_isolate_template,
+
+       mm_compaction_isolate_freepages,
+
+       compaction_isolate_freepages,
+
+       TP_PROTO(unsigned long start_pfn,
+               unsigned long end_pfn,
+               unsigned long nr_scanned,
+               unsigned long nr_taken),
+
+       TP_ARGS(start_pfn, end_pfn, nr_scanned, nr_taken)
+)
+
+#else /* #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0) */
+
+LTTNG_TRACEPOINT_EVENT_CLASS(compaction_isolate_template,
 
        TP_PROTO(unsigned long nr_scanned,
                unsigned long nr_taken),
 
        TP_ARGS(nr_scanned, nr_taken),
 
-       TP_STRUCT__entry(
-               __field(unsigned long, nr_scanned)
-               __field(unsigned long, nr_taken)
-       ),
+       TP_FIELDS(
+               ctf_integer(unsigned long, nr_scanned, nr_scanned)
+               ctf_integer(unsigned long, nr_taken, nr_taken)
+       )
+)
 
-       TP_fast_assign(
-               tp_assign(nr_scanned, nr_scanned)
-               tp_assign(nr_taken, nr_taken)
-       ),
+LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(compaction_isolate_template,
 
-       TP_printk("nr_scanned=%lu nr_taken=%lu",
-               __entry->nr_scanned,
-               __entry->nr_taken)
-)
+       mm_compaction_isolate_migratepages,
 
-DEFINE_EVENT(mm_compaction_isolate_template, mm_compaction_isolate_migratepages,
+       compaction_isolate_migratepages,
 
        TP_PROTO(unsigned long nr_scanned,
                unsigned long nr_taken),
@@ -38,37 +83,76 @@ DEFINE_EVENT(mm_compaction_isolate_template, mm_compaction_isolate_migratepages,
        TP_ARGS(nr_scanned, nr_taken)
 )
 
-DEFINE_EVENT(mm_compaction_isolate_template, mm_compaction_isolate_freepages,
+LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(compaction_isolate_template,
+
+       mm_compaction_isolate_freepages,
+
+       compaction_isolate_freepages,
+
        TP_PROTO(unsigned long nr_scanned,
                unsigned long nr_taken),
 
        TP_ARGS(nr_scanned, nr_taken)
 )
 
-TRACE_EVENT(mm_compaction_migratepages,
+#endif /* #else #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0) */
 
-       TP_PROTO(unsigned long nr_migrated,
-               unsigned long nr_failed),
+#if LTTNG_KERNEL_RANGE(3,12,30, 3,13,0) || \
+       LTTNG_KERNEL_RANGE(3,14,25, 3,15,0) || \
+       (LINUX_VERSION_CODE >= KERNEL_VERSION(3,16,0))
+LTTNG_TRACEPOINT_EVENT_CODE_MAP(mm_compaction_migratepages,
 
-       TP_ARGS(nr_migrated, nr_failed),
+       compaction_migratepages,
+
+       TP_PROTO(unsigned long nr_all,
+               int migrate_rc,
+               struct list_head *migratepages),
+
+       TP_ARGS(nr_all, migrate_rc, migratepages),
 
-       TP_STRUCT__entry(
-               __field(unsigned long, nr_migrated)
-               __field(unsigned long, nr_failed)
+       TP_locvar(
+               unsigned long nr_failed;
        ),
 
-       TP_fast_assign(
-               tp_assign(nr_migrated, nr_migrated)
-               tp_assign(nr_failed, nr_failed)
+       TP_code_pre(
+               tp_locvar->nr_failed = 0;
+
+               {
+                       struct list_head *page_lru;
+
+                       if (migrate_rc >= 0)
+                               tp_locvar->nr_failed = migrate_rc;
+                       else
+                               list_for_each(page_lru, migratepages)
+                                       tp_locvar->nr_failed++;
+               }
+       ),
+
+       TP_FIELDS(
+               ctf_integer(unsigned long, nr_migrated, nr_all - tp_locvar->nr_failed)
+               ctf_integer(unsigned long, nr_failed, tp_locvar->nr_failed)
        ),
 
-       TP_printk("nr_migrated=%lu nr_failed=%lu",
-               __entry->nr_migrated,
-               __entry->nr_failed)
+       TP_code_post()
 )
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,16,0)) */
+LTTNG_TRACEPOINT_EVENT_MAP(mm_compaction_migratepages,
+
+       compaction_migratepages,
 
+       TP_PROTO(unsigned long nr_migrated,
+               unsigned long nr_failed),
+
+       TP_ARGS(nr_migrated, nr_failed),
+
+       TP_FIELDS(
+               ctf_integer(unsigned long, nr_migrated, nr_migrated)
+               ctf_integer(unsigned long, nr_failed, nr_failed)
+       )
+)
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,16,0)) */
 
-#endif /* _TRACE_COMPACTION_H */
+#endif /* LTTNG_TRACE_COMPACTION_H */
 
 /* This part must be outside protection */
-#include "../../../probes/define_trace.h"
+#include <probes/define_trace.h>