RFR: 8302066: Counter _number_of_nmethods_with_dependencies should be atomic. [v2]

[Tobias Hartmann]

On Wed, 8 Feb 2023 14:41:24 GMT, Robbin Ehn <rehn at openjdk.org> wrote:

>> Hi, please consider!
>> 
>> We increment this counter when holding CodeCache, but loads are holding Compile_lock.
>> Lets just make it atomic so we don't need to reason about if there is some race here.
>> Also we are trying to avoid 'dirty' reads in the code base. (since in theory it is subject to things like word-tearing)
>> 
>> Testing tier1 in progress.
>> 
>> Thanks, Robbin
>
> Robbin Ehn has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Spelling

Marked as reviewed by thartmann (Reviewer).

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PR: https://git.openjdk.org/jdk/pull/12470