diff options
| author | Morten Rasmussen <morten.rasmussen@arm.com> | 2012-10-12 15:25:02 +0100 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2013-03-12 14:54:44 +0530 |
| commit | ae50cc6c24965ee5239dfbbc6efa2f6370288f80 (patch) | |
| tree | c35c14c0f3c2937c9036f88f6db123a38949c294 | |
| parent | 1a574871bfd002f4d7c7bcf004fd9835de9cea63 (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 7aef90ad9b4..1c73975585b 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -5886,8 +5886,11 @@ 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 */ |