[Libguestfs] [PATCH nbdkit 0/4] Add fuamode=pass and fuamode=discard
Two hopefully useful additions to the fua filter. The second one is
kind of like cache=unsafe in qemu, in that it exchanges correctness
for speed. Useful for data which is easily recreated in the event of
a crash or for people who like living on the edge and have good
backups.
Rich.