Notes: pstore used mount_single, which used to transparently do a remount operation on a fresh mount of an existing superblock. The new get_tree_single does not do this, but prior discussion on fsdevel seems to indicate that this isn't expected to be a problem. We can watch for issues. devpts is just a forward port from work dhowells did already, and it seems straightforward. I left error messages as they are rather than converting to the mount API message channel for now. devtmpfs was already converted, but left a .mount in place, rather than using .get_tree. The solution to this is ... unique so some scrutiny is probably wise. The last patch removes reconfigure_single, mount_single, and compare_single because no users remain, but we could also wait until all conversions are done, and remove all infrastructure at that time instead, if desired. Thanks, Eric
