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()
> > 
> > The smp_read_barrier_depends() does nothing at all except on DEC Alpha,
> > and no current DEC Alpha systems use Infiniband:
> > 
> > lkml.kernel.org/r/20171023085921.jwbntptn6ictbnvj@tower
> > 
> > This commit therefore makes Infiniband depend on !ALPHA and removes
> > the now-ineffective invocations of smp_read_barrier_depends() from
> > the InfiniBand driver.
> > 
> > Please note that this patch should not be construed as my saying that
> > InfiniBand's memory ordering is correct, but rather that this patch does
> > not in any way affect InfiniBand's correctness.  In other words, the
> > result of applying this patch is bug-for-bug compatible with the 
> > original.
> > 
> > Signed-off-by: Paul E. McKenney 
> > Cc: Doug Ledford 
> > Cc: Jason Gunthorpe 
> > Cc: Richard Henderson 
> > Cc: Ivan Kokshaysky 
> > Cc: Matt Turner 
> > Cc: Michael Cree 
> > Cc: Andrea Parri 
> > Cc: 
> > Cc: 
> > [ paulmck: Removed drivers/dma/ioat/dma.c per Jason Gunthorpe's 
> > feedback. ]
> 
> Let me know if you want this patch to flow through the rdma tree..
> 
> Acked-by: Jason Gunthorpe 

I applied your ack, thank you!

Your choice as to what tree it flows through.  By default, and if all
goes well, I will push this series through -rcu and -tip during the next
merge window.

Thanx, Paul

--
To unsubscribe from this list: send the line "unsubscribe linux-alpha" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

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 DEC Alpha,
> and no current DEC Alpha systems use Infiniband:
> 
>   lkml.kernel.org/r/20171023085921.jwbntptn6ictbnvj@tower
> 
> This commit therefore makes Infiniband depend on !ALPHA and removes
> the now-ineffective invocations of smp_read_barrier_depends() from
> the InfiniBand driver.
> 
> Please note that this patch should not be construed as my saying that
> InfiniBand's memory ordering is correct, but rather that this patch does
> not in any way affect InfiniBand's correctness.  In other words, the
> result of applying this patch is bug-for-bug compatible with the original.
> 
> Signed-off-by: Paul E. McKenney 
> Cc: Doug Ledford 
> Cc: Jason Gunthorpe 
> Cc: Richard Henderson 
> Cc: Ivan Kokshaysky 
> Cc: Matt Turner 
> Cc: Michael Cree 
> Cc: Andrea Parri 
> Cc: 
> Cc: 
> [ paulmck: Removed drivers/dma/ioat/dma.c per Jason Gunthorpe's feedback. 
> ]

Let me know if you want this patch to flow through the rdma tree..

Acked-by: Jason Gunthorpe 
--
To unsubscribe from this list: send the line "unsubscribe linux-alpha" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html