netdev - Re: [PATCH v4] netlink: add NETLINK_CAP

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Message-Id: <20150828.222557.1986611543185633142.davem@davemloft.net>
Date:	Fri, 28 Aug 2015 22:25:57 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	christophe.ricard@...il.com
Cc:	pablo@...filter.org, jbenc@...hat.com, sfeldma@...il.com,
	sameo@...ux.intel.com, netdev@...r.kernel.org,
	christophe-h.ricard@...com
Subject: Re: [PATCH v4] netlink: add NETLINK_CAP_ACK socket option

From: Christophe Ricard <christophe.ricard@...il.com>
Date: Fri, 28 Aug 2015 07:07:48 +0200

> Since commit c05cdb1b864f ("netlink: allow large data transfers from
> user-space"), the kernel may fail to allocate the necessary room for the
> acknowledgment message back to userspace. This patch introduces a new
> socket option that trims off the payload of the original netlink message.
> 
> The netlink message header is still included, so the user can guess from
> the sequence number what is the message that has triggered the
> acknowledgment.
> 
> Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
> Signed-off-by: Christophe Ricard <christophe-h.ricard@...com>

Applied.
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