Re: [PATCH 5/9] rcu: Use MAX_NICE to replace hard coding of 19.

From: Josh Triplett
Date: Tue Feb 11 2014 - 10:43:48 EST


On Tue, Feb 11, 2014 at 03:34:49PM +0800, Dongsheng Yang wrote:
> Signed-off-by: Dongsheng Yang <yangds.fnst@xxxxxxxxxxxxxx>
> cc: Josh Triplett <josh@xxxxxxxxxxxxxxx>
> cc: "Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx>
> cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> cc: Ingo Molnar <mingo@xxxxxxxxxx>

Reviewed-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx>

> kernel/rcu/torture.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/kernel/rcu/torture.c b/kernel/rcu/torture.c
> index 732f8ae..219761d 100644
> --- a/kernel/rcu/torture.c
> +++ b/kernel/rcu/torture.c
> @@ -805,7 +805,7 @@ rcu_torture_writer(void *arg)
> static DEFINE_RCU_RANDOM(rand);
>
> VERBOSE_PRINTK_STRING("rcu_torture_writer task started");
> - set_user_nice(current, 19);
> + set_user_nice(current, MAX_NICE);
>
> do {
> schedule_timeout_uninterruptible(1);
> @@ -871,7 +871,7 @@ rcu_torture_fakewriter(void *arg)
> DEFINE_RCU_RANDOM(rand);
>
> VERBOSE_PRINTK_STRING("rcu_torture_fakewriter task started");
> - set_user_nice(current, 19);
> + set_user_nice(current, MAX_NICE);
>
> do {
> schedule_timeout_uninterruptible(1 + rcu_random(&rand)%10);
> @@ -987,7 +987,7 @@ rcu_torture_reader(void *arg)
> unsigned long long ts;
>
> VERBOSE_PRINTK_STRING("rcu_torture_reader task started");
> - set_user_nice(current, 19);
> + set_user_nice(current, MAX_NICE);
> if (irqreader && cur_ops->irq_capable)
> setup_timer_on_stack(&t, rcu_torture_timer, 0);
>
> @@ -1584,7 +1584,7 @@ static int rcu_torture_barrier_cbs(void *arg)
>
> init_rcu_head_on_stack(&rcu);
> VERBOSE_PRINTK_STRING("rcu_torture_barrier_cbs task started");
> - set_user_nice(current, 19);
> + set_user_nice(current, MAX_NICE);
> do {
> wait_event(barrier_cbs_wq[myid],
> (newphase =
> --
> 1.8.2.1
>
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