On Tue, Dec 27, 2022 at 09:11:39AM -0300, Marcelo Tosatti wrote: > @@ -606,6 +608,7 @@ static inline void mod_zone_state(struct > > if (z) > zone_page_state_add(z, zone, item); > + vmstat_mark_dirty(); > } > > void mod_zone_page_state(struct zone *zone, enum zone_stat_item item, > @@ -674,6 +677,7 @@ static inline void mod_node_state(struct > > if (z) > node_page_state_add(z, pgdat, item); > + vmstat_mark_dirty(); Looking at this further, about the two above chunks, there is a risk to mark the wrong CPU dirty because those functions are preemptible and rely on this_cpu_cmpxchg() to deal with preemption. Thanks.
