From: "Mitchell Blank Jr" <mitch@sfgoth.com>
> The places that look up entries in these "register"ed lists do so with
> the big-kernel-lock, which also protects against module_{init,exit}.
> I think the socket-type lookup didn't follow this at one point... not
> sure if that got fixed.
Yes, but what if module_exit() sleeps _before_ it unlinks itself from these
lists?
Tim checked all foo_open() functions, AFAICS we must also check all unload
functions :-(
> The only problem is if module_init does something that sleeps (for
instance
> allocs non-atomic memory) before incrementing the module count, since the
> sleep will give up the big-lock, and another thread can then rmmod
> the driver (since it has a zero module count).
No, this cannot happen: sys_init_module() increases the module count before
calling module_init().
--
Manfred
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This archive was generated by hypermail 2b29 : Sat Apr 01 2000 - 05:27:08 EST