Re: [discuss] f_ops flag to speed up compatible ioctls in linux kernel

From: Andi Kleen
Date: Tue Sep 07 2004 - 10:05:31 EST


On Tue, Sep 07, 2004 at 05:37:02PM +0300, Michael S. Tsirkin wrote:
> Hello!
> Quoting r. Andi Kleen (ak@xxxxxxx) "Re: [discuss] f_ops flag to speed up compatible ioctls in linux kernel":
> > On Tue, Sep 07, 2004 at 05:25:30PM +0300, Michael S. Tsirkin wrote:
> > > > It may help your module, but won't solve the general problem shorter
> > > > term.
> > > But longer term it will be better, so why not go there?
> > > Once the infrastructure is there, drivers will be able to be
> > > migrated as required.
> >
> > I have no problems with that. You would need two new entry points:
> > one 64bit one without BKL and a 32bit one also without BKL.
> >
> > I think there were some objections to this scheme in the past,
> > but I cannot think of a good alternative.
> >
>
> Maybe one entry point with a flag?

That would be IMHO far uglier than two.

-Andi
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