Merge PR #26730 into master

* refs/pull/26730/head:
	src/test: remove unused objects to calculate accurate dedup ratio.
	src/tools: fix counting total objects
	src/tools: fix printing wrong offset.
	src/tools: fix dedup tool's name
	qa/workunit: add rabin chunk test
	src/tool: add rabin fingerprint option to cephdeduptool
	src/common: add rabin fingerprint class
	Initail work for rabin fingerprint

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

diff --cc ceph.spec.in
Simple merge

diff --cc src/common/CMakeLists.txt
Simple merge

diff --cc src/tools/CMakeLists.txt
Simple merge