Re: [PATCH 0/4] arch: Introduce smp_load_acquire() and smp_store_release()

["Paul E. McKenney" <paulmck@linux.vnet.ibm.com>]

On Wed, Dec 18, 2013 at 08:08:06PM +0100, Peter Zijlstra wrote:
> 
> This should hopefully be the last posting of this series -- people felt it
> needed one more mostly because last time I typoed the linux-kernel email
> address.
> 
> If there are no further comments, Ingo will merge these patches in the next few
> days.

They still look good to me!

							Thanx, Paul

> ---
> 
> These patches introduce 2 new barrier primitives:
> 
>   smp_load_acquire(p)
>   smp_store_release(p, v)
> 
> See the first patch, which changes Documentation/memory-barriers.txt, to find
> the exact definitions of what an ACQUIRE/RELEASE barrier is -- previously known
> as LOCK/UNLOCK barriers.
> 
> The second patch moves the smp_mb__{before,after}_atomic_{dec,inc}() barriers
> to asm/atomic.h for arc and hexagon -- they were already there for all other archs.
> 
> This cleans up asm/barrier.h, and the third patch makes more agressive use of
> asm-generic/barrier.h to implement the simple cases.
> 
> Then the fourth patch adds the new primitives.
> 
> Previous versions were widely build tested -- this version is not, but it also
> not significantly different.
> 
> These patches apply to:
> 
>   tip/master
> 
> 
> ---
> Changes since the last version -- lkml.kernel.org/r/20131213145657.265414969@infradead.org
> 
>  - fixed linux-kernel email address
>  - updated the Documentation patch
>