On Tue, Jun 23, 2009 at 04:12:22PM +0200, Miklos Szeredi wrote:
> > an issue ioctls + stat / etc on it ut not actually read/write it.
>
> Two differences between open("foo", 3) and open("foo", O_NOACC):
>
> 1) open with "3" requires _read_and_write_ permissions on foo, but
> does not allow either read or write. Not sure what the logic in
> that, but that's the way it has always been.
Which is a quite sensible requirement if we want to do ioctls.
>
> 2) open with "3" calls driver's ->open() with any side effect that
> may have. Open with O_NOACC doesn't do that, and hence if we
> want to allow ioctls they need a new interface which gets a
> "struct path" instead of a "struct file".
Well, we'll need ->open to support ioctls, and I think it's good to go
down that road.
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
