netdev - Re: [PATCH] tcp: remove obsolete paramter sysctl_tcp_low

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Message-ID: <b3cb1c57-d992-72c1-dd24-5d594ff38561@chinatelecom.cn>
Date:   Thu, 7 Jan 2021 11:08:16 +0800
From:   lll <liyonglong@...natelecom.cn>
To:     Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, fw@...len.de
Subject: Re: [PATCH] tcp: remove obsolete paramter sysctl_tcp_low_latency


在 2020/12/19 8:46, Jakub Kicinski 写道:
> On Fri, 18 Dec 2020 14:11:16 +0800 lyl wrote:
>> Remove tcp_low_latency, since it is not functional After commit
>> e7942d0633c4 (tcp: remove prequeue support)
>>
>> Signed-off-by: lyl <liyonglong@...natelecom.cn>
> 
> I don't think we can remove sysctls, even if they no longer control 
> the behavior of the kernel. The existence of the file itself is uAPI.
> 
Got it. But a question: why tcp_tw_recycle can be removed totally?  it is also part of uAPI