On Sun, Aug 30, 2020 at 09:05:40PM +0200, Miklos Szeredi wrote: > Yes, open(..., O_ALT) would be special. Let's call it open_alt(2) to > avoid confusion with normal open on a normal filesystem. No special > casing anywhere at all. It's a completely new interface that returns > a file which either has ->read/write() or ->iterate() and which points > to an inode with empty i_ops. I think fiemap() should be allowed on a stream. After all, these extents do exist. But I'm opposed to allowing getdents(); it'll only encourage people to think they can have non-files as streams.
