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    Subject[PATCH] IB/ehca: use kthread_create_on_node
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    Since create_comp_task() creates percpu kthread, it makes
    sense to use kthread_create_on_node() to get proper NUMA affinity for
    kthread stack.

    Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
    CC: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
    CC: Christoph Raisch <raisch@de.ibm.com>
    CC: Roland Dreier <roland@kernel.org>
    CC: Sean Hefty <sean.hefty@intel.com>
    ---
    drivers/infiniband/hw/ehca/ehca_irq.c | 3 ++-
    1 file changed, 2 insertions(+), 1 deletion(-)

    diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c b/drivers/infiniband/hw/ehca/ehca_irq.c
    index e571e60..5358900 100644
    --- a/drivers/infiniband/hw/ehca/ehca_irq.c
    +++ b/drivers/infiniband/hw/ehca/ehca_irq.c
    @@ -786,7 +786,8 @@ static struct task_struct *create_comp_task(struct ehca_comp_pool *pool,
    spin_lock_init(&cct->task_lock);
    INIT_LIST_HEAD(&cct->cq_list);
    init_waitqueue_head(&cct->wait_queue);
    - cct->task = kthread_create(comp_task, cct, "ehca_comp/%d", cpu);
    + cct->task = kthread_create_on_node(comp_task, cct, cpu_to_node(cpu),
    + "ehca_comp/%d", cpu);

    return cct->task;
    }



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