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

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Message-ID: <20201218164647.1bcc6cb9@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Fri, 18 Dec 2020 16:46:47 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     lyl <liyonglong@...natelecom.cn>,
        Eric Dumazet <edumazet@...gle.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, fw@...len.de,
        qitiepeng@...natelecom.cn
Subject: Re: [PATCH] tcp: remove obsolete paramter sysctl_tcp_low_latency

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.