[PATCHv2] nvme: send uevent once a multipath namespace is operational again

[Christoph Hellwig]

On Wed, Mar 03, 2021 at 01:12:27PM +0100, Hannes Reinecke wrote:
> In an all paths down scenario I/O will be requeued or aborted, and no
> further I/O will be ongoing on this namespace.
> This leaves the upper layers unable to determine if the namespace
> becomes operational again eg. after a successful controller reset.
> With this patch a 'change' uevent will be sent per multipathed namespace
> once the underlying controller moved to LIVE and started I/O processing
> by calling nvme_kick_requeue_lists().

This looks functionally correct, but I'm a little worried about the
nvme_kick_requeue_lists function name being a little off now.  Can
anyone on the list think of a better name?