Move node_id zone_idx shrink flags into trace function,
so thay we don't need caculate these args if the trace is disabled,
and will make this function have less arguments.

Signed-off-by: yalin wang <yalin.wang2...@gmail.com>
---
 include/trace/events/vmscan.h | 14 +++++++-------
 mm/vmscan.c                   |  7 ++-----
 2 files changed, 9 insertions(+), 12 deletions(-)

diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h
index dae7836..f8d6b34 100644
--- a/include/trace/events/vmscan.h
+++ b/include/trace/events/vmscan.h
@@ -352,11 +352,11 @@ TRACE_EVENT(mm_vmscan_writepage,
 
 TRACE_EVENT(mm_vmscan_lru_shrink_inactive,
 
-       TP_PROTO(int nid, int zid,
-                       unsigned long nr_scanned, unsigned long nr_reclaimed,
-                       int priority, int reclaim_flags),
+       TP_PROTO(struct zone *zone,
+               unsigned long nr_scanned, unsigned long nr_reclaimed,
+               int priority, int file),
 
-       TP_ARGS(nid, zid, nr_scanned, nr_reclaimed, priority, reclaim_flags),
+       TP_ARGS(zone, nr_scanned, nr_reclaimed, priority, file),
 
        TP_STRUCT__entry(
                __field(int, nid)
@@ -368,12 +368,12 @@ TRACE_EVENT(mm_vmscan_lru_shrink_inactive,
        ),
 
        TP_fast_assign(
-               __entry->nid = nid;
-               __entry->zid = zid;
+               __entry->nid = zone->zone_pgdat->node_id;
+               __entry->zid = zone_idx(zone);
                __entry->nr_scanned = nr_scanned;
                __entry->nr_reclaimed = nr_reclaimed;
                __entry->priority = priority;
-               __entry->reclaim_flags = reclaim_flags;
+               __entry->reclaim_flags = trace_shrink_flags(file);
        ),
 
        TP_printk("nid=%d zid=%d nr_scanned=%ld nr_reclaimed=%ld priority=%d 
flags=%s",
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 83cea53..bd2918e 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1691,11 +1691,8 @@ shrink_inactive_list(unsigned long nr_to_scan, struct 
lruvec *lruvec,
            current_may_throttle())
                wait_iff_congested(zone, BLK_RW_ASYNC, HZ/10);
 
-       trace_mm_vmscan_lru_shrink_inactive(zone->zone_pgdat->node_id,
-               zone_idx(zone),
-               nr_scanned, nr_reclaimed,
-               sc->priority,
-               trace_shrink_flags(file));
+       trace_mm_vmscan_lru_shrink_inactive(zone, nr_scanned, nr_reclaimed,
+                       sc->priority, file);
        return nr_reclaimed;
 }
 
-- 
1.9.1

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