
Each fsdriver only supports a subset of the options that can be passed to -fsdev. Unsupported options are simply ignored. This could cause the user to erroneously think QEMU has a bug. Enforce strict checking of supported options for all fsdrivers. This shouldn't impact libvirt, since it doesn't know about the synth and proxy fsdrivers. Signed-off-by: Greg Kurz <groug@kaod.org> Reviewed-by: Eric Blake <eblake@redhat.com>