Re: [PATCH tip/core/rcu 16/21] drivers/infiniband: Remove now-redundant smp_read_barrier_depends()

2017-12-05 Thread Paul E. McKenney
On Tue, Dec 05, 2017 at 08:08:32AM -0700, Jason Gunthorpe wrote: > > commit c389c98ec5f4a7aa4c36853e89801eb5ea81870e > > Author: Paul E. McKenney > > Date: Mon Nov 27 09:04:22 2017 -0800 > > > > drivers/infiniband: Remove now-redundant smp_read_barrier_depends()

Re: [PATCH tip/core/rcu 16/21] drivers/infiniband: Remove now-redundant smp_read_barrier_depends()

2017-12-05 Thread Jason Gunthorpe
> commit c389c98ec5f4a7aa4c36853e89801eb5ea81870e > Author: Paul E. McKenney > Date: Mon Nov 27 09:04:22 2017 -0800 > > drivers/infiniband: Remove now-redundant smp_read_barrier_depends() > > The smp_read_barrier_depends() does nothing at all except on

Re: [PATCH tip/core/rcu 16/21] drivers/infiniband: Remove now-redundant smp_read_barrier_depends()

2017-12-01 Thread Paul E. McKenney
On Fri, Dec 01, 2017 at 05:11:09PM -0700, Jason Gunthorpe wrote: > On Fri, Dec 01, 2017 at 11:51:11AM -0800, Paul E. McKenney wrote: > > The smp_read_barrier_depends() does nothing at all except on DEC Alpha, > > and no current DEC Alpha systems use Infiniband: > > > >