Hello, Generally looks okay to me. One comment on 3/3 â the naked xchg() in set_resource_max() needs a comment explaining why it's used instead of page_counter_set_max() and what the semantics are (unconditionally sets max regardless of current usage to prevent further allocations, since there's no eviction mechanism yet).
Applied 1/3. Maarten, Michal, what do you think? Thanks. -- tejun
