[PATCH] mm: vmscan: drop zone id from kswapd tracepoints

[Yafang Shao <laoar.shao@gmail.com>]

The zid is meaningless to the user.
If we really want to expose it, we'd better expose the zone type
(i.e. ZONE_NORMAL) intead of this number.
Per discussion with Michal, seems this zid is not so userful in kswapd
tracepoints, so we'd better drop it to avoid making noise.

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
---
 include/trace/events/vmscan.h | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h
index a1cb913..d3f029f 100644
--- a/include/trace/events/vmscan.h
+++ b/include/trace/events/vmscan.h
@@ -73,7 +73,9 @@
 		__entry->order	= order;
 	),
 
-	TP_printk("nid=%d zid=%d order=%d", __entry->nid, __entry->zid, __entry->order)
+	TP_printk("nid=%d order=%d",
+		__entry->nid,
+		__entry->order)
 );
 
 TRACE_EVENT(mm_vmscan_wakeup_kswapd,
@@ -96,9 +98,8 @@
 		__entry->gfp_flags	= gfp_flags;
 	),
 
-	TP_printk("nid=%d zid=%d order=%d gfp_flags=%s",
+	TP_printk("nid=%d order=%d gfp_flags=%s",
 		__entry->nid,
-		__entry->zid,
 		__entry->order,
 		show_gfp_flags(__entry->gfp_flags))
 );
-- 
1.8.3.1