+int compaction_proactiveness_sysctl_handler(struct ctl_table *table, int write,
+ void *buffer, size_t *length, loff_t *ppos)
+{
+ int rc, nid;
+
+ rc = proc_dointvec_minmax(table, write, buffer, length, ppos);
+ if (rc)
+ return rc;
+
+ if (write && sysctl_compaction_proactiveness) {
+ for_each_online_node(nid) {
+ pg_data_t *pgdat = NODE_DATA(nid);
+
+ if (pgdat->proactive_compact_trigger)
+ continue;
+
+ pgdat->proactive_compact_trigger = true;
+ wake_up_interruptible(&pgdat->kcompactd_wait);
+ }
+ }
+
+ return 0;
+}
+