Add support for file system passthrough read/write of files when enabled inMight be more effort than it is worth but any thoughts on userland error handling for passthrough? My use case, optionally, responds to read or write errors in particular ways. It's not an unreasonable tradeoff to disable passthrough if the user wants those features but was wondering if there was any consideration of extending the protocol to pass read/write errors back to the fuse server.
userspace through the option FUSE_PASSTHROUGH.