linux-kernel - Re: [patch 10/21] Xen-paravirt: Name: dont export paravirt

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Date:	Wed, 14 Feb 2007 16:51:20 +1100
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Zachary Amsden <zach@...are.com>
Cc:	Jeremy Fitzhardinge <jeremy@...p.org>, Andi Kleen <ak@....de>,
	Andrew Morton <akpm@...l.org>, linux-kernel@...r.kernel.org,
	virtualization@...ts.osdl.org, xen-devel@...ts.xensource.com,
	Chris Wright <chrisw@...s-sol.org>
Subject: Re: [patch 10/21] Xen-paravirt: Name: dont export paravirt_ops
	structure, do individual functions

On Tue, 2007-02-13 at 17:06 -0800, Zachary Amsden wrote:
> Jeremy Fitzhardinge wrote:
> > Wrap the paravirt_ops members we want to export in wrapper functions.
> > Since we binary-patch the critical ones, this doesn't make a speed
> > impact.
> 
> This turned out really hideous looking to me.  Can't we split the struct 
> into GPL'd and non-GPL'd functions instead?  We still have the same 
> granularity, and none of this function call to an indirect function call 
> nonsense.

This patch, indeed, should not have been pushed in this series.  But not
for that reason: I actually prefer explicit exports.

KVM and lguest need more symbols, so the real patch will make them use
native_XXX versions explicitly...

Cheers,
Rusty.


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