[PATCH v4] nvme-multipath: revalidate paths during rescan

[Christoph Hellwig]

I've replaced the version in nvme-5.15 with this one.

> Signed-off-by: Hannes Reinecke <hare at suse.de>
> [dwagner: - introduce NVME_NS_READY flag instead of NVME_NS_INVALIDATE
>           - use 'revalidate' instead of 'invalidate' which
> 	    follows the zoned device code path.
> 	  - clear NVME_NS_READY before clearing current_path]
> Tested-by: Daniel Wagner <dwagner at suse.de>
> Signed-off-by: Daniel Wagner <dwagner at suse.de>

I've dropped the Tested-by here - the tag is for people not in the
signoff chain.