diff options
Diffstat (limited to 'kernel/sched/fair.c')
| -rw-r--r-- | kernel/sched/fair.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index c6c330245f7f..0bb3e0aa110b 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -902,7 +902,14 @@ void task_numa_fault(int node, int pages, bool migrated) if (!numabalancing_enabled) return; - /* FIXME: Allocate task-specific structure for placement policy here */ + /* Allocate buffer to track faults on a per-node basis */ + if (unlikely(!p->numa_faults)) { + int size = sizeof(*p->numa_faults) * nr_node_ids; + + p->numa_faults = kzalloc(size, GFP_KERNEL|__GFP_NOWARN); + if (!p->numa_faults) + return; + } /* * If pages are properly placed (did not migrate) then scan slower. @@ -918,6 +925,8 @@ void task_numa_fault(int node, int pages, bool migrated) } task_numa_placement(p); + + p->numa_faults[node] += pages; } static void reset_ptenuma_scan(struct task_struct *p) |