diff options
Diffstat (limited to 'kernel/sched/core.c')
| -rw-r--r-- | kernel/sched/core.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index f4d02201f424..e4ce124ec701 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -4389,6 +4389,17 @@ void set_numabalancing_state(bool enabled) } #ifdef CONFIG_PROC_SYSCTL +static void reset_memory_tiering(void) +{ + struct pglist_data *pgdat; + + for_each_online_pgdat(pgdat) { + pgdat->nbp_threshold = 0; + pgdat->nbp_th_nr_cand = node_page_state(pgdat, PGPROMOTE_CANDIDATE); + pgdat->nbp_th_start = jiffies_to_msecs(jiffies); + } +} + int sysctl_numa_balancing(struct ctl_table *table, int write, void *buffer, size_t *lenp, loff_t *ppos) { @@ -4405,6 +4416,9 @@ int sysctl_numa_balancing(struct ctl_table *table, int write, if (err < 0) return err; if (write) { + if (!(sysctl_numa_balancing_mode & NUMA_BALANCING_MEMORY_TIERING) && + (state & NUMA_BALANCING_MEMORY_TIERING)) + reset_memory_tiering(); sysctl_numa_balancing_mode = state; __set_numabalancing_state(state); } @@ -5159,6 +5173,7 @@ context_switch(struct rq *rq, struct task_struct *prev, * finish_task_switch()'s mmdrop(). */ switch_mm_irqs_off(prev->active_mm, next->mm, next); + lru_gen_use_mm(next->mm); if (!prev->mm) { // from kernel /* will mmdrop() in finish_task_switch(). */ |