Ceph » rbd

Currently this

$ rbd --all children img

doesn't work, while this

$ rbd children --all img

or this

$ rbd children img --all

does. The issue is that -a/--all isn't on the list of known switch arguments. The "rbd children" example may seem contrived but for more complicated commands such as "rbd device map" mixing switches and positional arguments occurs naturally:

$ rbd device --device-type nbd --options try-netlink --show-cookie map img

This shows up as rbd-nbd.sh failures on cookie-enabled kernels:

http://qa-proxy.ceph.com/teuthology/dis-2022-01-19_08:39:11-rbd-wip-dis-testing-distro-default-smithi/6626548/teuthology.log