The quilt patch titled Subject: mm: compaction: avoid fragmentation score calculation for empty zones has been removed from the -mm tree. Its filename was mm-compaction-avoid-fragmentation-score-calculation-for-empty-zones.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx> Subject: mm: compaction: avoid fragmentation score calculation for empty zones Date: Tue, 10 Jan 2023 21:36:22 +0800 There is no need to calculate the fragmentation score for empty zones. Link: https://lkml.kernel.org/r/100331ad9d274a9725e687b00d85d75d7e4a17c7.1673342761.git.baolin.wang@xxxxxxxxxxxxxxxxx Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx> Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- --- a/mm/compaction.c~mm-compaction-avoid-fragmentation-score-calculation-for-empty-zones +++ a/mm/compaction.c @@ -2025,6 +2025,8 @@ static unsigned int fragmentation_score_ struct zone *zone; zone = &pgdat->node_zones[zoneid]; + if (!populated_zone(zone)) + continue; score += fragmentation_score_zone_weighted(zone); } _ Patches currently in -mm which might be from baolin.wang@xxxxxxxxxxxxxxxxx are