RFR: 8321075: RISC-V: UseSystemMemoryBarrier lacking proper OS support [v3]

[Yadong Wang]

On Tue, 20 Feb 2024 06:14:06 GMT, Robbin Ehn <rehn at openjdk.org> wrote:

>> Hi, please consider.
>> 
>> RV port was pickup into mainline Linux 4.4.
>> The same version also made membar private expedited mandatory, but this was missed in RV port.
>> This means to we need to check kernel version in runtime to figure out if it's usable.
>> 
>> Kernel fix is here:
>> https://git.kernel.org/pub/scm/linux/kernel/git/palmer/linux.git/commit/?h=for-next&id=0420af54c2c2b7b3abbd986a41aded7cab0137ef
>
> Robbin Ehn has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Spelling

LGTM (not a reviewer).

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Marked as reviewed by yadongwang (Committer).

PR Review: https://git.openjdk.org/jdk/pull/17889#pullrequestreview-1889631828