I think the key problem is that mapping from FUSE requests to inotify events requires information that only the FUSE daemon has. For example, lets say you open

I think the key problem is that mapping from FUSE requests to inotify events requires information that only the FUSE daemon has. For example, lets say you open a file with O_CREAT. Whether this should trigger IN_CREATE depends on whether the file already exists. The kernel doesn't know this, and so couldn't be responsible for generating the IN_CREATE event. Now, the FUSE daemon could generate the event, but correctly generating events (especially handling edge cases) is difficult.