first commit
compile OK.
bugfix
modify add static
add migrate_wq
modify README
bugfix and modify. pretest self code review.
can make logical device
bugfix
bugfix
bugfix
bugfix
bugfix. segment->global_id
bugfix and refactoring
it is working on big seq dd
define arr class and break with flex_array. flex_array goes beyond my expectation.
bugfix. 512B random write no fail
bugfix. remove all the metablock related to new segment. 4KB/512B mixed randwrite no fail.
written read path. write 512/4K read no fail.
add stat