Re: [Xen-devel] [PATCH net-next] xen-netback: enable user to unload netback module

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Mon, 2013-05-06 at 17:11 +0100, Wei Liu wrote:
> This patch enables user to unload netback module, which is useful when user
> wants to upgrade to a newer netback module without rebooting the host.
> 
> Netfront cannot handle netback removal event. As we cannot fix all possible
> frontends we add module get / put along with vif get / put to avoid
> mis-unloading of netback. To unload netback module, user needs to shutdown
> all VMs or migrate them to another host before hand.

... or just unplug their VIFs.

> Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>

Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
(when the tree reopens of course)

Ian.


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