/*
* Toggle the offline CPUs.
*/
- cpumask_copy(&sched_core_mask, cpu_possible_mask);
- cpumask_andnot(&sched_core_mask, &sched_core_mask, cpu_online_mask);
-
- for_each_cpu(cpu, &sched_core_mask)
+ for_each_cpu_andnot(cpu, cpu_possible_mask, cpu_online_mask)
cpu_rq(cpu)->core_enabled = enabled;
cpus_read_unlock();
rq->prev_irq_time += irq_delta;
delta -= irq_delta;
+ psi_account_irqtime(rq->curr, irq_delta);
#endif
#ifdef CONFIG_PARAVIRT_TIME_ACCOUNTING
if (static_key_false((¶virt_steal_rq_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)
{
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);
}
* 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(). */