`nvme_disable_ctrl()` takes 411 ms on a Dell XPS 13 with SK hynix PC300 NVMEe

[Jeremy Allison]

On Thu, May 02, 2024 at 09:43:36AM +0100, Keith Busch wrote:
>
>This gets worse as you add more nvme devices to your system because
>shutdown is serialized. Some of us have proposed patches parallelizing
>this process. I wish I could spend more time on helping see that to
>completion, but other priorities get in the way. :(

FYI. The various asynchronous shutdown patches have been
merged and are continuing development and testing. I expect
Stuart to re-propose these once all the obvious bugs have been
found. His approach is currently the best option IMHO.