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-rw-r--r--mm/compaction.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/compaction.c b/mm/compaction.c
index f58bcd016f43..a03995eddedb 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -970,6 +970,8 @@ static int compact_zone(struct zone *zone, struct compact_control *cc)
if (compaction_restarting(zone, cc->order) && !current_is_kswapd())
__reset_isolation_suitable(zone);
+ trace_mm_compaction_begin(start_pfn, cc->migrate_pfn, cc->free_pfn, end_pfn);
+
migrate_prep_local();
while ((ret = compact_finished(zone, cc)) == COMPACT_CONTINUE) {
@@ -1015,6 +1017,8 @@ out:
cc->nr_freepages -= release_freepages(&cc->freepages);
VM_BUG_ON(cc->nr_freepages != 0);
+ trace_mm_compaction_end(ret);
+
return ret;
}