[PATCH 1/2] nvme: keep transport module referenced while head node is open

[Keith Busch]

On Wed, Sep 02, 2026 at 04:13:47PM +0200, Christoph Hellwig wrote:
> On Wed, Sep 02, 2026 at 07:39:32PM +0530, Nilay Shroff wrote:
> > So the practical problem is that an open multipath head can continue to
> > be used after its underlying transport module has been unloaded. The
> > proposed change keeps the transport module referenced while the head
> > node is open, preventing the module from being unloaded in this
> > scenario.
> 
> But why do you unload it in the first place?

I don't think there's a use case to do it on purpose. It'd probably be
by mistake or mischief. This seems like a reasonable way to remove that
foot gun. We already do this for non-multipath, too.