diff options
| -rw-r--r-- | kernel/sched/fair.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index fc33a4b40a09..9c9e54ea65d9 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -6899,8 +6899,8 @@ static int task_hot(struct task_struct *p, struct lb_env *env) static int migrate_degrades_locality(struct task_struct *p, struct lb_env *env) { struct numa_group *numa_group = rcu_dereference(p->numa_group); - unsigned long src_faults, dst_faults; - int src_nid, dst_nid; + unsigned long src_weight, dst_weight; + int src_nid, dst_nid, dist; if (!static_branch_likely(&sched_numa_balancing)) return -1; @@ -6927,18 +6927,19 @@ static int migrate_degrades_locality(struct task_struct *p, struct lb_env *env) return 0; /* Leaving a core idle is often worse than degrading locality. */ - if (env->idle != CPU_NOT_IDLE) + if (env->idle == CPU_IDLE) return -1; + dist = node_distance(src_nid, dst_nid); if (numa_group) { - src_faults = group_faults(p, src_nid); - dst_faults = group_faults(p, dst_nid); + src_weight = group_weight(p, src_nid, dist); + dst_weight = group_weight(p, dst_nid, dist); } else { - src_faults = task_faults(p, src_nid); - dst_faults = task_faults(p, dst_nid); + src_weight = task_weight(p, src_nid, dist); + dst_weight = task_weight(p, dst_nid, dist); } - return dst_faults < src_faults; + return dst_weight < src_weight; } #else |