Hello! Recently I've got a question from a user about the following: # unshare --mount swapon /dev/sda3 # cat /proc/swaps Filename Type Size Used Priority /sda3 partition 2098152 0 -2 Now everything works as expected here AFAICS. When namespace gets created /dev mount is cloned into it. When swapon exits, the namespace is destroyed and /dev mount clone is detached (no parent, namespace NULL). Hence when d_path() crawls the path it stops at the mountpoint root and exits. There's not much we can do about this but when discussing the situation internally, Michal proposed that d_path() could append something like "(detached)" to the path string - similarly to "(deleted)". That could somewhat reduce the confusion about such paths? What do people think about this? Honza -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR
