[QUESTIONS] THP allocation in NUMA fault migration path
From: Yang Shi
Date: Thu Apr 18 2019 - 00:16:32 EST
I noticed that there might be new THP allocation in NUMA fault migration
path (migrate_misplaced_transhuge_page()) even when THP is disabled (set
to "never"). When THP is set to "never", there should be not any new THP
allocation, but the migration path is kind of special. So I'm not quite
sure if this is the expected behavior or not?
And, it looks this allocation disregards defrag setting too, is this
expected behavior too?