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| author | Morten Rasmussen <morten.rasmussen@arm.com> | 2012-10-12 15:25:02 +0100 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2012-10-12 20:50:57 +0530 |
| commit | e2d8c1f52f5e3174c7c05332901e6f524c79ac1e (patch) | |
| tree | 3c46b14c2610e7cd8e28db55337258bd05746b50 | |
| parent | 004bd61ea2a665d342ee9cd5ef6e8f396781fe5a (diff) | |
| download | linaro-lsk-e2d8c1f52f5e3174c7c05332901e6f524c79ac1e.tar.gz | |
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 035c0ebd7d5..d5c6832901d 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -5586,8 +5586,11 @@ 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 */ |