Re: PATCH - change to blkdev->queue calling triggers BUG in md.c

HOWEVER, that disk change checking really should be done by
the generic layers, and it should be done after the open() anyway
(and not by the open)

Are you sure?
I am inclined to think that this would be an undesirable change of
open() semantics. Traditionally, and according to all standards,
open() will return ENXIO when the device does not exist.

Andries