Commit-ID: 6dfec8d9493f48a42896386b41ec1a4644331b0b
Gitweb: http://git.kernel.org/tip/6dfec8d9493f48a42896386b41ec1a4644331b0b
Author: bsegall@xxxxxxxxxx <bsegall@xxxxxxxxxx>
AuthorDate: Tue, 16 Jun 2015 12:18:21 -0700
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Tue, 7 Jul 2015 08:46:09 +0200
sched/numa: Check sched_feat(NUMA) in migrate_improves_locality()
migrate_improves_locality checked sched_feat(NUMA_FAVOUR_HIGHER) but not
sched_feat(NUMA), so disabling just the NUMA feature would leave it
working off of old data.
Signed-off-by: Ben Segall <bsegall@xxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/xm26si9rtqbm.fsf@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
kernel/sched/fair.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index d113c3b..98b2b96 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5680,8 +5680,8 @@ static bool migrate_improves_locality(struct task_struct *p, struct lb_env *env)
unsigned long src_faults, dst_faults;
int src_nid, dst_nid;
- if (!sched_feat(NUMA_FAVOUR_HIGHER) || !p->numa_faults ||
- !(env->sd->flags & SD_NUMA)) {
+ if (!sched_feat(NUMA) || !sched_feat(NUMA_FAVOUR_HIGHER) ||
+ !p->numa_faults || !(env->sd->flags & SD_NUMA)) {
return false;
}
--
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