Ceph » rbd

When unmapping an image by the image spec, the rbd-nbd ignores the namespace when searching for the nbd device, which may result in unmapping an image from a wrong namespace (if you have a chance of mapping images with the same name but from different namespaces.

% rbd-nbd map rbd/test
/dev/nbd0
% rbd-nbd map rbd/ns/test
/dev/nbd1
% rbd-nbd list-mapped
id    pool  namespace  image  snap  device   
6327  rbd              test   -     /dev/nbd0
6365  rbd   ns         test   -     /dev/nbd1
% rbd-nbd unmap rbd/ns/test
% rbd-nbd list-mapped
id    pool  namespace  image  snap  device   
6365  rbd   ns         test   -     /dev/nbd1