linux-kernel - Re: [PATCH v2] ipv4: make tcp_notsent_lowat sysctl knob behave as true unsigned int

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Message-Id: <20170109.163841.473518915535228188.davem@davemloft.net>
Date:   Mon, 09 Jan 2017 16:38:41 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     ptikhomirov@...tuozzo.com
Cc:     edumazet@...gle.com, kuznet@....inr.ac.ru, jmorris@...ei.org,
        yoshfuji@...ux-ipv6.org, kaber@...sh.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, khorenko@...tuozzo.com
Subject: Re: [PATCH v2] ipv4: make tcp_notsent_lowat sysctl knob behave as
 true unsigned int

From: Pavel Tikhomirov <ptikhomirov@...tuozzo.com>
Date: Mon,  9 Jan 2017 10:45:49 +0300

>> cat /proc/sys/net/ipv4/tcp_notsent_lowat
> -1
>> echo 4294967295 > /proc/sys/net/ipv4/tcp_notsent_lowat
> -bash: echo: write error: Invalid argument
>> echo -2147483648 > /proc/sys/net/ipv4/tcp_notsent_lowat
>> cat /proc/sys/net/ipv4/tcp_notsent_lowat
> -2147483648
> 
> but in documentation we have "tcp_notsent_lowat - UNSIGNED INTEGER"
> 
> v2: simplify to just proc_douintvec
> Signed-off-by: Pavel Tikhomirov <ptikhomirov@...tuozzo.com>

Applied.