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From 5defe623568273e9b87da1b817e373ff087fd862 Mon Sep 17 00:00:00 2001
From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Sun, 13 Jul 2014 13:27:01 -0400
Subject: [PATCH 1/2] Update vmscan instrumentation to 3.16 kernel
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---
instrumentation/events/lttng-module/vmscan.h | 39 ++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/instrumentation/events/lttng-module/vmscan.h b/instrumentation/events/lttng-module/vmscan.h
index 1fd50ba7c235..0b4aa56761dc 100644
--- a/instrumentation/events/lttng-module/vmscan.h
+++ b/instrumentation/events/lttng-module/vmscan.h
@@ -238,6 +238,44 @@ TRACE_EVENT(mm_shrink_slab_start,
__entry->total_scan)
)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,16,0))
+TRACE_EVENT(mm_shrink_slab_end,
+ TP_PROTO(struct shrinker *shr, int nid, int shrinker_retval,
+ long unused_scan_cnt, long new_scan_cnt, long total_scan),
+
+ TP_ARGS(shr, nid, shrinker_retval, unused_scan_cnt, new_scan_cnt,
+ total_scan),
+
+ TP_STRUCT__entry(
+ __field(struct shrinker *, shr)
+ __field(int, nid)
+ __field(void *, shrink)
+ __field(long, unused_scan)
+ __field(long, new_scan)
+ __field(int, retval)
+ __field(long, total_scan)
+ ),
+
+ TP_fast_assign(
+ tp_assign(shr, shr)
+ tp_assign(nid, nid)
+ tp_assign(shrink, shr->scan_objects)
+ tp_assign(unused_scan, unused_scan_cnt)
+ tp_assign(new_scan, new_scan_cnt)
+ tp_assign(retval, shrinker_retval)
+ tp_assign(total_scan, total_scan)
+ ),
+
+ TP_printk("%pF %p: nid %d unused scan count %ld new scan count %ld total_scan %ld last shrinker return val %d",
+ __entry->shrink,
+ __entry->shr,
+ __entry->nid,
+ __entry->unused_scan,
+ __entry->new_scan,
+ __entry->total_scan,
+ __entry->retval)
+)
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,16,0)) */
TRACE_EVENT(mm_shrink_slab_end,
TP_PROTO(struct shrinker *shr, int shrinker_retval,
long unused_scan_cnt, long new_scan_cnt),
@@ -274,6 +312,7 @@ TRACE_EVENT(mm_shrink_slab_end,
__entry->total_scan,
__entry->retval)
)
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,16,0)) */
#endif
DECLARE_EVENT_CLASS(mm_vmscan_lru_isolate_template,
--
1.8.1.2
|
