netdev - Re: [PATCH 1/2] sctp: SCTP_SOCKOPT_PEELOFF return socket pointer for kernel users

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Message-ID: <20150710102527.GA21910@hmsreliant.think-freely.org>
Date:	Fri, 10 Jul 2015 06:25:28 -0400
From:	Neil Horman <nhorman@...driver.com>
To:	Marcelo Ricardo Leitner <marcelo.leitner@...il.com>
Cc:	netdev@...r.kernel.org, Vlad Yasevich <vyasevich@...il.com>
Subject: Re: [PATCH 1/2] sctp: SCTP_SOCKOPT_PEELOFF return socket pointer for
 kernel users

On Thu, Jul 09, 2015 at 11:15:19AM -0300, Marcelo Ricardo Leitner wrote:
> SCTP has this operation to peel off associations from a given socket and
> create a new socket using this association. We currently have two ways
> to use this operation:
> - via getsockopt(), on which it will also create and return a file
>   descriptor for this new socket
> - via sctp_do_peeloff(), which is for kernel only
> 
> The caveat with using sctp_do_peeloff() directly is that it creates a
> dependency to SCTP module, while all other operations are handled via
> kernel_{socket,sendmsg,getsockopt...}() interface. This causes the
> kernel to load SCTP module even when it's not directly used
> 
> This patch then updates SCTP_SOCKOPT_PEELOFF so that for kernel users of
> this protocol it will not allocate a file descriptor but instead just
> return the socket pointer directly.
> 
> If called by an user application it will work as before.
> 
> Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@...il.com>

Acked-by: Neil Horman <nhorman@...driver.com>

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