Merge pull request #11232 from Roushan81/wip-bluestore-blob-gc

os/bluestore: garbage collect partially overlapped blobs

Reviewed-by: Sage Weil <sage@redhat.com>

diff --cc src/common/config_opts.h
Simple merge

diff --cc src/os/bluestore/BlueStore.cc
Simple merge

diff --cc src/os/bluestore/BlueStore.h
Simple merge

diff --cc src/test/objectstore/store_test.cc
Simple merge

diff --cc src/test/objectstore/test_bluestore_types.cc
Simple merge