Prevent page allocations from occuring on an offlined by adding a check to confirm the node is online and if not, use the closest node. Some further work is needed for my previous solution to be complete. This will provide a fix to the problem while the more complete solution is being worked on. V2: * drop the first patch that will introduce a regression by adding a branch in the hotpath. * Remove the for_each_online_nodes introduced as that will require further work for memcg and hotplug to work correctly. Long term a rework will be needed to either allocate all pgdatas or update all memcgs when a new node is onlined. Signed-off-by: Nico Pache <npache@xxxxxxxxxx> Nico Pache (1): mm/vmscan.c: Prevent allocating shrinker_info on offlined nodes mm/vmscan.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) -- 2.33.1
