Hi all, this series contains some random cleanups and fixes to compation. Details can be found in respective patches. v2->v3: -Improve comment in patch 4 -Collect ACK and RVB from David and Baolin. -Rebase code on current mm-unstable v1->v2: -Add comment to skip_offline_sections_reverse in patch 1 -Add impact in git message in patch 2 -Correct comment to fast_find_block instead of remove fast_find_block in patch 4 -Collect RVB from David and Baolin. Kemeng Shi (8): mm/compaction: avoid missing last page block in section after skip offline sections mm/compaction: correct last_migrated_pfn update in compact_zone mm/compaction: skip page block marked skip in isolate_migratepages_block mm/compaction: correct comment of fast_find_migrateblock in isolate_migratepages mm/compaction: correct comment of cached migrate pfn update mm/compaction: correct comment to complete migration failure mm/compaction: remove unnecessary return for void function mm/compaction: only set skip flag if cc->no_set_skip_hint is false mm/compaction.c | 30 +++++++++++++++++------------- 1 file changed, 17 insertions(+), 13 deletions(-) -- 2.30.0