RFR: 8201209: Separate out CMS specific functions into CMSCardTable

[Erik Osterlund]

Hi Stefan,

Nice! This one has been at the back of my head for a while. This looks good.

One thing though. I wonder if the CMSCardTable constructor should take that argument whether the table is scanned concurrently or not (when pre-cleaning is enabled). Perhaps that logic could be in the constructor of CMSCardTable instead. I tend to think it belongs in the constructor. It is not a strong preference though, so I will leave it as your call, and will not need another webrev.

Thanks,
/Erik

> On 5 Apr 2018, at 22:42, Stefan Karlsson <stefan.karlsson at oracle.com> wrote:
> 
> Hi all,
> 
> Please review this patch to move CMS specific CardTableRS code into a new CMSCardTable class.
> 
>  http://cr.openjdk.java.net/~stefank/8201209/webrev.01/
>  https://bugs.openjdk.java.net/browse/JDK-8201209
> 
> Erik Ö suggested that I named the class CMSCardTable instead of CMSCardTableRS, because CardTableRS would probably renamed in the future.
> 
> This patch makes it easier to conditionally compile out CMS in:
>  https://bugs.openjdk.java.net/browse/JDK-8200729 - Conditional compilation of GCs
> 
> Thanks,
> StefanK