netdev - Re: [PATCH 1/2] Update description of net.sctp.sctp_rmem and net.sctp.sctp

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Message-ID: <19986.28723.546267.454485@regina.usersys.redhat.com>
Date:	Tue, 5 Jul 2011 12:00:19 +1000
From:	Max Matveev <makc@...hat.com>
To:	Neil Horman <nhorman@...driver.com>
Cc:	linux-sctp@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH 1/2] Update description of net.sctp.sctp_rmem and
 net.sctp.sctp_wmem tunables

On Mon, 4 Jul 2011 10:54:54 -0400, Neil Horman wrote:

 nhorman> On Mon, Jun 20, 2011 at 06:08:10PM +1000, Max Matveev wrote:

 >> sctp_rmem - vector of 3 INTEGERs: min, default, max
 >> -	See tcp_rmem for a description.
 >> +	Only the first value ("min") is used, "default" and "max" are
 >> +	ignored and may be removed in the future versions.
 >> +

 nhorman> Its accurate to say that only the first value is usd
 nhorman> currently, but because of the way this sysctl is contructed
 nhorman> (its used by the sysctl_rmem pointer in the sctp_prot
 nhorman> struct, which expects an array of three integers in the
 nhorman> commong __sk_mem_schedule function), we wont' be removing
 nhorman> the other two values.

Technically it can be just a single integer - UDP does use it 
that way but I'm not going to argue, v2 of the patch removed
that bit.

max
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