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| author | Chris Redpath <chris.redpath@arm.com> | 2013-05-16 17:48:01 +0100 |
|---|---|---|
| committer | Jon Medhurst <tixy@linaro.org> | 2013-07-17 11:12:26 +0100 |
| commit | d2c920023cbc456414f8e07ff253a89be535b41b (patch) | |
| tree | 4d52a5d5ba1b1b6810ed9e73769b88d951f47a7e | |
| parent | a9f9bca843e44144670c660638274363f34b9847 (diff) | |
sched: Do not ignore grouped tasks during HMP forced migration.
If the entity is not a task, it is a cfs group rq. Iterate up to
find the task entity.
Change-Id: I7cab7aba0798f6f14e38ad32e566d90e5937ffbc
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
| -rw-r--r-- | kernel/sched/fair.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 474dc61b3af..3866dcc9972 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -6109,10 +6109,19 @@ static void hmp_force_up_migration(int this_cpu) target = cpu_rq(cpu); raw_spin_lock_irqsave(&target->lock, flags); curr = target->cfs.curr; - if (!curr || !entity_is_task(curr)) { + if (!curr) { raw_spin_unlock_irqrestore(&target->lock, flags); continue; } + if (!entity_is_task(curr)) { + struct cfs_rq *cfs_rq; + + cfs_rq = group_cfs_rq(curr); + while (cfs_rq) { + curr = cfs_rq->curr; + cfs_rq = group_cfs_rq(curr); + } + } p = task_of(curr); if (hmp_up_migration(cpu, curr)) { if (!target->active_balance) { |