[aarch64-port-dev ] RFR: aarch64: minor improvements of atomic operations

Andrew Haley aph at redhat.com
Wed Nov 13 09:39:05 UTC 2019

On 11/13/19 9:26 AM, Yangfei (Felix) wrote:
> Yes, the cmpxchg case is different here.  
> So the v2 patch in my previous mail approved?  
> Will create a bug and do necessary testing.  

I don't know which patch is v2, but for the reasons carefully laid out
in the kernel-dev thread we don't need two full barriers. The first
version of Atomic::PlatformCmpxchg you posted is OK.

Andrew Haley  (he/him)
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
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