Worked on the geerlingguy/linux repository to enhance legacy workflow support in kernel development, focusing on device drivers and system programming using C. Delivered a feature that introduced a legacy_async_del_gendisk mode, allowing mdadm --assemble to remain compatible with older workflows by reverting to asynchronous gendisk deletion. Addressed a critical build issue by reverting a superblock field rename in the shared md_p.h header, restoring compatibility with userspace tools and resolving build failures. These changes stabilized user-space interactions, maintained backward compatibility, and established a clear path for transitioning to synchronous deletion in future kernel releases while preserving current asynchronous behavior.