Re: [PATCH] sched: rewrite the wrong annotation for select_task_rq_fair()

From: Michael Wang
Date: Sat Oct 06 2012 - 05:04:54 EST


On 09/26/2012 11:43 AM, Michael Wang wrote:
> On 09/18/2012 04:16 PM, Michael Wang wrote:
>> The annotation for select_task_rq_fair() is wrong since commit c88d5910, it's
>> actually for a removed function.
>>
>> This patch rewrite the wrong annotation to make it correct.
>
> Could I get some comments on this patch?

Hmm...no comments for a month...is that because there some wrong
understanding while explain the function or I didn't follow the rule?

Please let me know if I have made any mistake so I could do better in
future ;-)

Regards,
Michael Wang

>
> Regards,
> Michael Wang
>
>>
>> Signed-off-by: Michael Wang <wangyun@xxxxxxxxxxxxxxxxxx>
>> ---
>> kernel/sched/fair.c | 14 ++++++++------
>> 1 files changed, 8 insertions(+), 6 deletions(-)
>>
>> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
>> index 6b800a1..35eb43a 100644
>> --- a/kernel/sched/fair.c
>> +++ b/kernel/sched/fair.c
>> @@ -2682,15 +2682,17 @@ done:
>> }
>>
>> /*
>> - * sched_balance_self: balance the current task (running on cpu) in domains
>> - * that have the 'flag' flag set. In practice, this is SD_BALANCE_FORK and
>> - * SD_BALANCE_EXEC.
>> + * select_task_rq_fair:
>> + * Select a suitable CPU for task p, in order to keep load balance.
>> *
>> - * Balance, ie. select the least loaded group.
>> + * sd_flag:
>> + * the domain we try to balance should have "sd_flag" flag set.
>> *
>> - * Returns the target CPU number, or the same CPU if no balancing is needed.
>> + * wake_flags:
>> + * indicate WF_SYNC.
>> *
>> - * preempt must be disabled.
>> + * Must hold p->pi_lock and disable irq before invoke.
>> + * Return the CPU number for task p to running on.
>> */
>> static int
>> select_task_rq_fair(struct task_struct *p, int sd_flag, int wake_flags)
>>
>

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