Worked on stabilizing the storage subsystem in the linux-riscv/linux repository by focusing on dm-raid state management and improving suspend and resume behavior. Refactored the dm-raid code to use md_ro_state enumerators instead of hardcoded integers, introducing type-safe state handling in C for clearer and more reliable state transitions. Addressed a bug by ensuring the MD_RDONLY setting was correctly applied after suspend operations, which reduced the risk of invalid state changes. These updates enhanced code clarity and maintainability in the kernel’s dm-raid path, supporting future safety checks and making the system programming work more robust and easier to review.