Merge pull request #61762 from liu-chunmei/compress_extentmap

os/bluestore: fix do_write_v2 extentmap compress issue

do_write_v2 insert extentmap by aligned offset which is adjusted in writer.do_write, if use original offset will cause extentmap can't do compress.

Reviewed-by: Adam Kupczyk <akupczyk@ibm.com>

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

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