Alex Bligh <[email protected]> writes: > I am trying to clean up the documentation of the NBD protocol. NBD's > support for Force Unit Access (FUA) was modelled on the linux kernel > block layer. When I added support a few years ago, I omitted to find > out exactly what types of request it applies to. Obviously it applies > to write requests, but how about others (e.g. read)?
Any request with REQ_FUA set will be treated as a flush by the block layer. As such, we do not expect reads to have this bit set. Cheers, Jeff
