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Subject[PATCH] mm: vmscan: show zone type in kswapd tracepoints
Date
If we want to know the zone type, we have to check whether
CONFIG_ZONE_DMA, CONFIG_ZONE_DMA32 and CONFIG_HIGHMEM are set or not,
that's not so convenient.

We'd better show the zone type directly.

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
---
include/trace/events/vmscan.h | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h
index a1cb913..4c8880b 100644
--- a/include/trace/events/vmscan.h
+++ b/include/trace/events/vmscan.h
@@ -73,7 +73,10 @@
__entry->order = order;
),

- TP_printk("nid=%d zid=%d order=%d", __entry->nid, __entry->zid, __entry->order)
+ TP_printk("nid=%d zid=%-8s order=%d",
+ __entry->nid,
+ __print_symbolic(__entry->zid, ZONE_TYPE),
+ __entry->order)
);

TRACE_EVENT(mm_vmscan_wakeup_kswapd,
@@ -96,9 +99,9 @@
__entry->gfp_flags = gfp_flags;
),

- TP_printk("nid=%d zid=%d order=%d gfp_flags=%s",
+ TP_printk("nid=%d zid=%-8s order=%d gfp_flags=%s",
__entry->nid,
- __entry->zid,
+ __print_symbolic(__entry->zid, ZONE_TYPE),
__entry->order,
show_gfp_flags(__entry->gfp_flags))
);
--
1.8.3.1
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