Merge PR #38684 into master

* refs/pull/38684/head:
	qa: add _check_scrub_status helper to simplify the code
	qa: add run_scrub helper in filesystem class
	qa: add get_scrub_status helper in filesystem class
	qa: wait the scrub task to complete
	qa: remove passed_validation check for test_damage
	qa: move wait_until_scrub_complete helper to filesystem class
	mds: simplify the C_MDS_EnqueueScrub finish code

Reviewed-by: Rishabh Dave <ridave@redhat.com>
Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>

diff --cc qa/tasks/cephfs/cephfs_test_case.py
Simple merge

diff --cc qa/tasks/cephfs/filesystem.py
Simple merge

diff --cc src/mds/MDCache.cc
Simple merge