kernconfig_mutex. Update module subsystem to use this mutex rather than
its own internal (non-recursive) mutex. Make module_autoload() do its
own locking to be consistent with the rest of the module_xxx() calls.
Update module(9) man page appropriately.
As discussed on tech-kern over the last few weeks.
Welcome to NetBSD 5.99.39 !
- the return value from modcmd(MODULE_CMD_FINI) is not ignored;
the module is only unloaded if the return value is 0
- if loading a module fails, the dependents won't be unloaded until
the auto_unload timer goes off
- clarify that <module>.prop is merged with the dictionary passed
in by modctl()
- clarify that other parts of the kernel shouldn't normally call
module_unload()
- add some more source references and mention routines expected to
be supplied by architecture dependent code
jruoho