ref: f4efa27b0a01aa1a2ae6a8b8a070d03182354b4b
dir: /TODO/
test exclusive use file access test syncusers() update() is not copy on write not updating Qid.version on writes or changes fswstat TODO streamline the error codes mafswrite(): add user and remove user messages users format has changed as per this http://9p.io/wiki/plan9/Setting_up_Fossil/index.html profiling read only mode need rlock() when looking up user id, group id, or user attributes Clean up the Iobuf locking description? APPEND files not a priority, are they even needed? ------------------------------------- make docs/mafs.ms more interesting? Open device file in EXCL mode? not possible. It is set at create time. Add readahead? ORCLOSE remove on close correct /adm/ctl operation: echo df >> /adm/ctl cat /adm/ctl