From edafc132baac4f5331b7bffd99a7af371776f2b5 Mon Sep 17 00:00:00 2001
From: "Palik, Imre" <imrep@amazon.de>
Date: Thu, 19 Mar 2015 11:05:42 +0100
Subject: [PATCH] xen-netback: making the bandwidth limiter runtime settable

With the current netback, the bandwidth limiter's parameters are only
settable during vif setup time.  This patch register a watch on them, and
thus makes them runtime changeable.

When the watch fires, the timer is reset.  The timer's mutex is used for
fencing the change.

Cc: Anthony Liguori <aliguori@amazon.com>
Signed-off-by: Imre Palik <imrep@amazon.de>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
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