Messages in this thread Patch in this message | | | From | Baolin Wang <> | Subject | [PATCH 5/5] mm: compaction: Avoid fragmentation score calculation for empty zones | Date | Tue, 10 Jan 2023 21:36:22 +0800 |
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There is no need to calculate the fragmentation score for empty zones.
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com> --- mm/compaction.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/mm/compaction.c b/mm/compaction.c index 0fd6c81a7809..b758b00a4885 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -2025,6 +2025,8 @@ static unsigned int fragmentation_score_node(pg_data_t *pgdat) struct zone *zone; zone = &pgdat->node_zones[zoneid]; + if (!populated_zone(zone)) + continue; score += fragmentation_score_zone_weighted(zone); } -- 2.27.0
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