Merge pull request #28601 from rzarzynski/wip-crimson-os-omit-block-write

os/memstore, crimson/os: introduce memstore_debug_omit_block_device_write

Reviewed-by: Kefu Chai <kchai@redhat.com>

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

diff --cc src/common/options.cc
Simple merge

diff --cc src/crimson/os/cyan_store.cc
Simple merge

diff --cc src/os/memstore/MemStore.cc
Simple merge