linux-kernel - Re: [PATCH 11/14] net: core: add new/replace rate estimator lock parameter

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Date:   Wed, 16 May 2018 12:11:51 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     Vlad Buslov <vladbu@...lanox.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, jhs@...atatu.com,
        xiyou.wangcong@...il.com, pablo@...filter.org,
        kadlec@...ckhole.kfki.hu, fw@...len.de, ast@...nel.org,
        daniel@...earbox.net, edumazet@...gle.com, keescook@...omium.org,
        linux-kernel@...r.kernel.org, netfilter-devel@...r.kernel.org,
        coreteam@...filter.org, kliteyn@...lanox.com
Subject: Re: [PATCH 11/14] net: core: add new/replace rate estimator lock
 parameter

Wed, May 16, 2018 at 12:00:57PM CEST, vladbu@...lanox.com wrote:
>
>On Wed 16 May 2018 at 09:54, Jiri Pirko <jiri@...nulli.us> wrote:
>> Mon, May 14, 2018 at 04:27:12PM CEST, vladbu@...lanox.com wrote:
>>>Extend rate estimator new and replace APIs with additional spinlock
>>>parameter used by lockless actions to protect rate_est pointer from
>>>concurrent modification.
>>>
>>>Signed-off-by: Vlad Buslov <vladbu@...lanox.com>
>>
>> [...]
>>
>>
>>> /**
>>>  * gen_new_estimator - create a new rate estimator
>>>  * @bstats: basic statistics
>>>  * @cpu_bstats: bstats per cpu
>>>  * @rate_est: rate estimator statistics
>>>+ * @rate_est_lock: rate_est lock (might be NULL)
>>
>> I cannot find a place you actually use this new arg in this patchset.
>> Did I miss it?
>
>It is used by specific action init function. However, that code was
>moved to next patchset due to patchset size limit.

Please move this patch too.

>
>>
>>
>>>  * @stats_lock: statistics lock
>>>  * @running: qdisc running seqcount
>>>  * @opt: rate estimator configuration TLV
>>
>> [...]
>