1 files changed, 10 insertions, 1 deletions

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 37e895a941ab..dd18087fd369 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -812,6 +812,15 @@ void task_numa_fault(int node, int pages)
 
         /* FIXME: Allocate task-specific structure for placement policy here */
 
+        /*
+         * Assume that as faults occur that pages are getting properly placed
+         * and fewer NUMA hints are required. Note that this is a big
+         * assumption, it assumes processes reach a steady steady with no
+         * further phase changes.
+         */
+        p->numa_scan_period = min(sysctl_numa_balancing_scan_period_max,
+                                p->numa_scan_period + jiffies_to_msecs(2));
+
         task_numa_placement(p);
 }
 
@@ -858,7 +867,7 @@ void task_numa_work(struct callback_head *work)
         if (p->numa_scan_period == 0)
                 p->numa_scan_period = sysctl_numa_balancing_scan_period_min;
 
-        next_scan = now + 2*msecs_to_jiffies(p->numa_scan_period);
+        next_scan = now + msecs_to_jiffies(p->numa_scan_period);
         if (cmpxchg(&mm->numa_next_scan, migrate, next_scan) != migrate)
                 return;