JeffleXu <jefflexu@xxxxxxxxxxxxxxxxx> wrote: > > > >> + if (fd == 0) > >> + return -ENOENT; > > > > 0 is a valid fd. > > Yeah, but IMHO fd 0 is always for stdin? I think the allocated anon_fd > won't install at fd 0. Please correct me if I'm wrong. If someone has closed 0, then you'll get 0 next, I'm pretty sure. Try it and see. > In fact I wanna use "fd == 0" as the initial state as struct > cachefiles_object is allocated with kmem_cache_zalloc(). I would suggest presetting it to something like -2 to avoid confusion. David
