ceph/ceph — pull request #3162 by dillaman (2014-12-12 14:12:01+00:00)
Title: librbd: gracefully handle deleted/renamed pools

snap_unprotect and list_children both attempt to scan all
pools. If a pool is deleted or renamed during the scan,
the methods would previously return -ENOENT. Both methods
have been modified to more gracefully handle this condition.

Fixes: #10270
Backport: giant, firefly, dumpling
Signed-off-by: Jason Dillaman