Re: [PATCH 2/2] locking/percpu-rwsem: Introduce bias knob

From: Paul E. McKenney
Date: Fri Jul 15 2016 - 11:38:29 EST


On Fri, Jul 15, 2016 at 03:45:24PM +0200, Oleg Nesterov wrote:
> On 07/15, Paul E. McKenney wrote:
> >
> > On Fri, Jul 15, 2016 at 03:27:09PM +0200, Oleg Nesterov wrote:
> > >
> > > Heh ;) I too think it should be renamed. I'd suggest
> > >
> > > __rcu_sync_enter(rss);
> > >
> > > although I do not really mind and agree with any name.
> >
> > Hmmm... Why not just move the checks out into the caller? That
> > would make the intent much more clear.
>
> Hmm. which caller?

The ones associated with a percpu_rwsem_bias of PERCPU_RWSEM_READER.

Thanx, Paul