Here's an updated version which supports read, write, flush, write-zeroes, discard and FUA:
https://gitlab.com/rwmjones/nbdkit/-/commits/2023-libblkio/ I was able to access a local file using the io_uring driver using guestfish. You can try it like this: $ ./nbdkit -fv blkio io_uring path=/var/tmp/fedora-36.img \ --run ' guestfish --format=raw -a $uri -i ' I haven't tested it exhaustively, but it seems to work OK. Obviously it will be a bit slow. It doesn't implement pre-allocated buffers, so advice on how and when to do that would be welcome. Rich. PS: Eric: One thing we lack in the NBD space is a standards conformance test [-suite]. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com Fedora Windows cross-compiler. Compile Windows programs, test, and build Windows installers. Over 100 libraries supported. http://fedoraproject.org/wiki/MinGW _______________________________________________ Libguestfs mailing list Libguestfs@redhat.com https://listman.redhat.com/mailman/listinfo/libguestfs
