Re: [PATCH -v3 0/6] rcu,nohz,kvm: use RCU extended quiescent state when running KVM guest

From: Paul E. McKenney
Date: Mon Feb 09 2015 - 22:02:08 EST


On Tue, Feb 10, 2015 at 02:44:17AM +0100, Frederic Weisbecker wrote:
> On Mon, Feb 09, 2015 at 08:22:59PM -0500, Rik van Riel wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > On 02/09/2015 08:15 PM, Will Deacon wrote:
> > > Hi Rik,
> > >
> > > On Mon, Feb 09, 2015 at 04:04:38PM +0000, riel@xxxxxxxxxx wrote:
> > >> Apologies to Catalin and Will for not fixing up ARM. I am not
> > >> familiar with ARM assembly, and not sure how to pass a constant
> > >> argument to a function from assembly code on ARM :)
> > >
> > > It's a bit of a faff getting enum values into asm -- we actually
> > > have to duplicate the definitions using #defines to get at the
> > > constants. Perhaps it would be cleaner to leave
> > > context_tracking_user_{enter,exit} intact as C wrappers around
> > > context_tracking_{enter,exit} passing the appropriate constant?
> > > That way we don't actually need to change the arch code at all.
> >
> > If Paul and Frederic have no objections, I would be happy to do that.
> >
> > Paul, Frederic?
>
> Sure, that's fine by me.

And if it is fine by Frederic, it is fine by me!

Thanx, Paul

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