ref: 2a5ba3cfc8748cd08bea89d93080948132f5aefe
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 more consistent use of tree lock. not using the tree lock for reads - replace RWlock with a Qlock sl RWlock is better than the Qlock. Just need to enforce it better. file system checker fsck will be a different user space program EXCL files - maintain a list of locks in the tree APPEND files ORCLOSE correct /adm/ctl operation: echo df >> /adm/ctl cat /adm/ctl make docs/mafs.ms more interesting? test -A announce