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SubjectRe: opening files in /proc, and modules
Michael Rothwell wrote:
>
> How can I detect that open() has been called on a file in procfs that a
> module provides? If I modprobe my module, open one or more if its proc
> entries, then rmmod the module while the proc files are still open, then
> the deletion of those entries is deferred. When I close the file(s), the
> kernel oopses. I need to be able to detect open() and close() in order
> to increment/decrement the reference count for my module, to prevent it
> from being rmmoded when in use. Any tips?
>
> Thanks!

Really, the procfs needs a pointer to the module so it can do the
reference before calling the code in the module.

--

Brian Gerst
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