On Mon, 18 Jul 2022 at 16:25, Christian Kohlschütter <christian@xxxxxxxxxxxxxxxx> wrote: > > > Am 18.07.2022 um 15:13 schrieb Miklos Szeredi <miklos@xxxxxxxxxx>: > > Correct. The question is whether any application would break in this > > case. I think not, but you are free to prove otherwise. > > > > Thanks, > > Miklos > > I'm not going to do that since I expect any answer I give would not change your position here. All I know is there is a non-zero chance such programs exist. If you (or anyone) gave a real life example of an application relying on e.g. ioctl(..., FS_IOC_SETFLAGS) returning ENOSYS, then I would have no choice but to revert this change. However I think that's highly unlikely given that such an application would only have been tested on fuse filesystems and also given that very few (if any) fuse filesystems support these ioctls in the first place. Thanks, Miklos
