Re: [PATCH v3 5/5] mutex: Move mutex spinning code from sched/core.c back to mutex.c

[Waiman Long <Waiman.Long@hp.com>]

On 04/17/2013 03:18 AM, Ingo Molnar wrote:
> * Waiman Long<Waiman.Long@hp.com>  wrote:
>
>> As mentioned by Ingo, the SCHED_FEAT_OWNER_SPIN scheduler feature
>> bit was really just an early hack to make with/without mutex-spinning
>> testable. So it is no longer necessary.
>>
>> This patch removes the SCHED_FEAT_OWNER_SPIN feature bit and move the
>> mutex spinning code from kernel/sched/core.c back to kernel/mutex.c
>> which is where they should belong.
>>
>> Signed-off-by: Waiman Long<Waiman.Long@hp.com>
>> ---
>>   include/linux/sched.h   |    4 ---
>>   kernel/mutex.c          |   62 ++++++++++++++++++++++++++++++++++++++++++++++
>>   kernel/sched/core.c     |   63 -----------------------------------------------
>>   kernel/sched/features.h |    7 -----
>>   4 files changed, 62 insertions(+), 74 deletions(-)
> Please move this patch first in the series - so that later, functional patches are
> easier to revert, should the need arise. When possible we sort patches by risk:
> low risk ones first, riskier come later.

I have sent out a new series (v4) with the requested changes. Please let 
me know what else do you think I need to do.

Regards,
Longman