- rd_init
- rd_load
- read_inode
- read_intr
- read_long
- read_super
- read_swap_page
- real_to_int
- real_to_real
- recal_interrupt
- recal_intr
- recalibrate_floppy
- release
- relocation_info
- remove_from_free_list
- remove_from_hash_queue
- remove_from_queues
- request
- reset_controller
- reset_floppy
- reset_hd
- reset_interrupt
- respond
- restate
- restore_cur
- result
- ri
- rlimit
- rs_init
- rs_queues
- rs_table
- rs_write
- rusage
- rw
- rw_interrupt
- rw_lp
- rw_memory
- rw_swap_page
- rw_tty
- rw_ttyx