On Tue, May 28, 2024 at 03:55:29AM -0700, Christoph Hellwig wrote: > On Tue, May 28, 2024 at 11:17:58AM +0200, Christian Brauner wrote: > > As I've said earlier, independent of the new handle type returning the > > new mount id is useful and needed because it allows the caller to > > reliably generate a mount fd for use with open_by_handle_at() via > > statmount(). That won't be solved by a new handle type and is racy with > > the old mount id. So I intend to accept a version of this patch. > > The whole point is that with the fsid in the handle we do not even need > a mount fd for open_by_handle_at. Can you please explain how opening an fd based on a handle returned from name_to_handle_at() and not using a mount file descriptor for open_by_handle_at() would work?
