In this post, I just drop the patch 4 and patch 5 in old v1 since David and Michal worried moving per-node stats to the front of /proc/zoneinfo has potential to break the existing user space scripts. For patch 1~3, there's no change, seems no risk is found out so far, so just keep them and repost. The v1 thread can be found here: https://lore.kernel.org/linux-mm/20200324142229.12028-1-bhe@xxxxxxxxxx/ Baoquan He (3): mm/page_alloc.c: only tune sysctl_lowmem_reserve_ratio value once when changing it mm/page_alloc.c: clear out zone->lowmem_reserve[] if the zone is empty mm/vmstat.c: do not show lowmem reserve protection information of empty zone mm/page_alloc.c | 13 +++++++++++-- mm/vmstat.c | 12 ++++++------ 2 files changed, 17 insertions(+), 8 deletions(-) -- 2.17.2
