memcg, vmscan: add memcg reclaim tracepoint

Memcg also need to trace reclaim progress as direct reclaim.  This patch
add it.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 28 insertions, 0 deletions

diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h
index f9f2747bc1c1..028733be4f34 100644
--- a/include/trace/events/vmscan.h
+++ b/include/trace/events/vmscan.h
@@ -117,6 +117,19 @@ DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_direct_reclaim_b
         TP_ARGS(order, may_writepage, gfp_flags)
 );
 
+DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_memcg_reclaim_begin,
+
+        TP_PROTO(int order, int may_writepage, gfp_t gfp_flags),
+
+        TP_ARGS(order, may_writepage, gfp_flags)
+);
+
+DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_memcg_softlimit_reclaim_begin,
+
+        TP_PROTO(int order, int may_writepage, gfp_t gfp_flags),
+
+        TP_ARGS(order, may_writepage, gfp_flags)
+);
 
 DECLARE_EVENT_CLASS(mm_vmscan_direct_reclaim_end_template,
 
@@ -142,6 +155,21 @@ DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_direct_reclaim_end
         TP_ARGS(nr_reclaimed)
 );
 
+DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_memcg_reclaim_end,
+
+        TP_PROTO(unsigned long nr_reclaimed),
+
+        TP_ARGS(nr_reclaimed)
+);
+
+DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_memcg_softlimit_reclaim_end,
+
+        TP_PROTO(unsigned long nr_reclaimed),
+
+        TP_ARGS(nr_reclaimed)
+);
+
+
 TRACE_EVENT(mm_vmscan_lru_isolate,
 
         TP_PROTO(int order,