If you know or can find the module's name (#2), you can
do #1 via linux/kernel/kmod.c:exec_usermodehelper()
to load & run "/sbin/rmmod module_name". (in 2.3.x)
~Randy
> -----Original Message-----
> From: Peter T. Breuer [mailto:ptb@it.uc3m.es]
> Sent: Monday, May 08, 2000 2:52 AM
> To: linux kernel
> Subject: syscall from kernel thread?
>
> I didn't get any response when I asked about changes designed to help
> a module unload _itself_. I have the code working, but lets see if I
> can phrase a question that would enable me to avoid changing kernel
> interfaces ...
>
> 1) how can kernel code make use of a syscall? In particular I
> want to call
> sys_delete_module. But module.c only has a userspace interface and is
> linked with asmlinkage, so I've hacked out the code fragments I
> needed. Can I avoid doing this?
>
> 2) How can init_module get hold of its own name? I changed
> mod->init() to pass struct module *mod as an argument to init, but can
> I avoid this? Is there a call from within init_module that
> would deliver
> the modules registered name? Then I could pass it to delete_module.
>
> Thanks for any pointers. Incidentally, a module that unloads itself,
> or part of itself, is kinda cute. It works nicely.
>
> Peter
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This archive was generated by hypermail 2b29 : Mon May 15 2000 - 21:00:11 EST