diff options
| author | Morten Rasmussen <morten.rasmussen@arm.com> | 2012-10-12 15:25:02 +0100 |
|---|---|---|
| committer | Jon Medhurst <tixy@linaro.org> | 2013-07-17 11:12:26 +0100 |
| commit | eeebbf595c8dcd6392537c4d13b8cda78001f4e5 (patch) | |
| tree | f784eac0ad1f0e4e85b7e76a059b305b8fc5a85f | |
| parent | 362036513b1dff299b2035d5b928a203742b98d7 (diff) | |
sched: Only down migrate low priority tasks if allowed by affinity mask
Adds an extra check intersection of the task affinity mask and the slower
hmp_domain cpumask before down migrating low priority tasks.
Signed-off-by: Morten Rasmussen <morten.rasmussen@arm.com>
| -rw-r--r-- | kernel/sched/fair.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index fe2408f25e2..474dc61b3af 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -5918,8 +5918,11 @@ static unsigned int hmp_down_migration(int cpu, struct sched_entity *se) #ifdef CONFIG_SCHED_HMP_PRIO_FILTER /* Filter by task priority */ - if (p->prio >= hmp_up_prio) + if ((p->prio >= hmp_up_prio) && + cpumask_intersects(&hmp_slower_domain(cpu)->cpus, + tsk_cpus_allowed(p))) { return 1; + } #endif /* Let the task load settle before doing another down migration */ |