[dpdk-dev] [PATCH v1 0/2] ring C11 library fix and optimization

[Thomas Monjalon]

09/11/2018 12:42, Gavin Hu:
> V1:
> Update the ring C11 library including the following changes:
> 1) On relaxed ordering platforms(like Arm64,PPPC), in ring C11 implementation,
>    loading head and tail might be reodered, this makes CAS(compare and retry
>    the flow if the head is outdated) not working as expected, the fix is to
>    ensure the head is read before the tail, leaving no chances of the combination
>    of outdated head and new tail.
> 2) With the above memory fence introduced, some loading can be relaxed.
> 
> Gavin Hu (2):
>   ring: keep the deterministic order allowing retry to work
>   ring: relaxed ordering for load and store the head

No comment, so I guess it can enter in 18.11-rc3.
Applied, thanks