do_set_group(): use guards

clean fit; namespace_excl to modify propagation graph

Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2025-08-20 20:19:05 -04:00
commit 7b99ee2c5c