Re: [PATCH] nvmet: disable direct I/O when unavailable

[Sagi Grimberg]

> Frankly, we have a ton of testing related special cases in the kernel.
>
> This one is a) simple and small, only 10 LoC, b) far away from the fast
> path or any other place where it could have any impact on legitimate
> users and c) it prints an informal message showing you what happened.
>
> Sorry but this is a https://xkcd.com/386/ moment.

How about we just fail it with a proper error message and let the
user set buffered_io instead of trying to get smart here...