Update vmscan instrumentation to 3.16 kernel

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/instrumentation/events/lttng-module/vmscan.h b/instrumentation/events/lttng-module/vmscan.h
index 1fd50ba7c23578d322216720828184269e39e6f9..0b4aa56761dc3db9f461412c35fc7b105f3189d7 100644 (file)
--- 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,