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    Subject[RFC PATCH 3/4] sched: Gang using set_next_buddy
    Date
    Gang task group is faroured to be picked up using the set_next_buddy api and
    hope that scheduler gives it priority.

    Signed-off-by: Nikunj A. Dadhania <nikunj@linux.vnet.ibm.com>
    ---

    kernel/sched/fair.c | 7 +++++--
    1 files changed, 5 insertions(+), 2 deletions(-)

    diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
    index c03efd2..9a2f291 100644
    --- a/kernel/sched/fair.c
    +++ b/kernel/sched/fair.c
    @@ -5518,8 +5518,11 @@ static void gang_sched_member(void *info)

    /* Check if the runqueue has runnable tasks */
    if (cfs_rq->nr_running) {
    - /* Favour this task group and set need_resched flag,
    - * added by following patches */
    + struct sched_entity *se = tg->se[cpu];
    +
    + /* Make the parent favourable */
    + set_next_buddy(se);
    + set_tsk_need_resched(current);
    }
    raw_spin_unlock_irqrestore(&rq->lock, flags);
    }


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