[PATCH] nvme: bound the freeze drain in passthrough commands

[Keith Busch]

On Wed, May 27, 2026 at 01:59:23AM -0400, Chao Shi wrote:
> If a completion is silently dropped or the device hangs, the calling
> task wedges with ctrl->scan_lock and ctrl->subsys->lock held, fanning
> out into hung-task reports on any concurrent open/close/passthru on
> the same controller:

The IO timeout callbacks that nvme drivers provide are supposed to
forcefully reclaim any IO no matter what state the device is in. Is that
not happening for some reason?