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Re: modular net drivers

To: Philipp Rumpf <prumpf@xxxxxxxx>
Subject: Re: modular net drivers
From: Richard Gooch <rgooch@xxxxxxxxxxxxxxx>
Date: Sat, 24 Jun 2000 10:03:08 -0600
Cc: Andrew Morton <andrewm@xxxxxxxxxx>, Rusty Russell <rusty@xxxxxxxxxxxxxxxx>, Keith Owens <kaos@xxxxxxxxxx>, Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>, "netdev@xxxxxxxxxxx" <netdev@xxxxxxxxxxx>
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Philipp Rumpf writes:
> > Or why not use smp_call_function()?
> because the IPI smp_call_function uses might hit between the
> MOD_DEC_USE_COUNT that sets the module use count to zero and the
> return from module code.  That would mean the interrupted CPU would
> return to nonexistent code afterwards and in all likelyhood cause an
> Oops.

But you could use it to launch the kernel threads, right?

> > Just move it from the i386 tree to the generic tree.
> It's been generic for some time.

I only see it in the i386 and alpha arch trees. It may not be i386
specific anymore, but it isn't generic :-)


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