Merge pull request #10484 from dillaman/wip-16538

rbd-mirror: image deleter should use pool id + global image uuid for key

Reviewed-by: Mykola Golub <mgolub@mirantis.com>

diff --cc src/librbd/internal.cc
Simple merge

diff --cc src/test/rbd_mirror/test_ImageReplayer.cc
Simple merge

diff --cc src/tools/rbd_mirror/Replayer.cc
Simple merge