[PATCHv2 3/3] nvme-pci: do not try to add queue maps at runtime

[Keith Busch]

On Fri, Feb 13, 2026 at 04:05:47PM +0530, Kanchan Joshi wrote:
> User may not get an error on adding and, therefore, may feel that 
> everything went fine, but such queues cannot be used.
> At least, that was my observation on increasing the number of poll 
> queues from 0 to !0 value.
> I continued getting "not supported" error on issuing hipri I/O from 
> io_uring. After this patch, the poll queue became usable.

Thanks for confirming! Series applied to nvme-7.0.

Considering how broken modifying the counts at runtime was, I wonder was
it worth fixing? Clearly no one tried to use this feature. Maybe I
should have just changed the parameter permissions to 0444? But hey, it
wasn't a big deal to fix, so it's safe to use now!