Hi all, this is another series to do fix and clean up to compaction. Patch 1-2 fix and clean up freepage list operation. Patch 3-4 fix and clean up isolation of freepages Patch 7-9 factor code to check if compaction is needed for allocation order. More details can be found in respective patches. Thanks! Kemeng Shi (9): mm/compaction: use correct list in move_freelist_{head}/{tail} mm/compaction: call list_is_{first}/{last} more intuitively in move_freelist_{head}/{tail} mm/compaction: correctly return failure with bogus compound_order in strict mode mm/compaction: simplify pfn iteration in isolate_freepages_range mm/compaction: remove repeat compact_blockskip_flush check in reset_isolation_suitable mm/compaction: rename is_via_compact_memory to compaction_with_allocation_order mm/compaction: factor out code to test if we should run compaction for target order mm/compaction: call compaction_suit_allocation_order in kcompactd_node_suitable mm/compaction: call compaction_suit_allocation_order in kcompactd_do_work mm/compaction.c | 119 +++++++++++++++++++++++------------------------- 1 file changed, 57 insertions(+), 62 deletions(-) -- 2.30.0