On 07/03/2012 02:34 PM, Michael Wang wrote:
> From: Michael Wang <wang...@linux.vnet.ibm.com>
>
> it's impossible to enter else branch if we have set skip_clock_update
> in task_yield_fair(), as yield_to_task_fair() will directly return
> true after invoke task_yield_fair().
>
> Signed-off-by: Michael Wang <wang...@linux.vnet.ibm.com>
> ---
> kernel/sched/core.c | 7 -------
> 1 files changed, 0 insertions(+), 7 deletions(-)
>
> diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> index 9bb7d28..77c14aa 100644
> --- a/kernel/sched/core.c
> +++ b/kernel/sched/core.c
> @@ -4737,13 +4737,6 @@ again:
> */
> if (preempt && rq != p_rq)
> resched_task(p_rq->curr);
> - } else {
> - /*
> - * We might have set it in task_yield_fair(), but are
> - * not going to schedule(), so don't want to skip
> - * the next update.
> - */
> - rq->skip_clock_update = 0;
> }
Can I get some comments on this patch?
Regards,
Michael Wang
>
> out:
>
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