From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 15 Jan 2014 23:02:19 +0000 (+0100)
Subject: team: block mtu change before it happens via NETDEV_PRECHANGEMTU
X-Git-Tag: v3.14-rc1~94^2~126
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b01f236c66b214a73816a4083050f73481638a72;p=pandora-kernel.git

team: block mtu change before it happens via NETDEV_PRECHANGEMTU

Now it catches the NETDEV_CHANGEMTU notification, which is signaled after
the actual change happened on the device, and returns NOTIFY_BAD, so that
the change on the device is reverted.

This might be quite costly and messy, so use the new NETDEV_PRECHANGEMTU to
catch the MTU change before the actual change happens and signal that it's
forbidden to do it.

CC: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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