This helper allows reinserting a bio into a new queue without much overhead, but requires all queue limits to be the same for the upper and lower queues, and it does not provide any recursion preventions, which requires the caller to not split the bio.
Isn't the same limits constraint too restrictive? Say I have two paths to the same namespace via two different HBAs, each with its own virt_boundary capability for example? That would require us to split failover bio wouldn't it?
+/* + * Fast-path version of generic_make_request.
generic_make_request is also called in the fast-path, maybe reword it to: "Fast version of generic_make_request"
