Re: [RFC] Raceless module interface

From: Thunder from the hill (thunder@lightweight.ods.org)
Date: Fri Sep 13 2002 - 11:39:08 EST


Hi,

On Fri, 13 Sep 2002, Daniel Phillips wrote:
> That's debatable. Arguably, a failed ->module_cleanup() should be
> retried on every rmmod -a, but expecting module.c to just keep
> retrying mindlessly on its own sounds too much like a busy wait.

Hmmm. You might as well give it back to the user.

rmmod: remove failed: do it again!

So the cleanup code could as well just do it on its own.

> > Why is that sloppy? E.g. kfree() happily accepts NULL pointers as well.
>
> That is sloppy. Different discussion.

What should kfree do in your opinion? BUG()?

doodle.c:12: attempted to free NULL pointer, as you know it already is.

> I take it that the points you didn't reply to are points that you
> agree with? (The main point being, that we both advocate a simple,
> two-method interface for module load/unload.)

You could even do it using three methods.

                        Thunder

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