ref: 24f55a271a56c68f664e07a6450317715ac7901b
dir: /TODO/
profiling read only mode mafswrite(): add user and remove user messages Add readahead? need rlock() when looking up user id, group id, or user attributes EXCL files - maintain a list of locks in the tree APPEND files ORCLOSE remove on close correct /adm/ctl operation: echo df >> /adm/ctl cat /adm/ctl make docs/mafs.ms more interesting? test -A announce Clean up the Iobuf locking description? Open device file in EXCL mode?