RFR (S) 8135012: Don't use G1RootProcessor when scanning remembered sets

[Eric Caspole]

Hi Mikael,
Looks good, it seems more straight forward.
Eric


On 09/03/2015 11:07 AM, Mikael Gerdin wrote:
> Hi all,
>
> Please review this small refactoring in preparation of some further
> changes.
>
> Calls to scan the remembered sets during a G1 evacuation are currently
> needlessly tunneled through G1RootProcessor before ending up in G1RemSet.
>
> I suggest that we change the code to call oops_into_collection_set_do
> straight away and that G1CodeBlob is moved to its own file (which also
> makes it available from outside of G1RootProcessor).
>
> Webrev: http://cr.openjdk.java.net/~mgerdin/8135012/webrev.0/
> Bug: https://bugs.openjdk.java.net/browse/JDK-8135012
> Testing: JPRT.
>
> Thanks
> /Mikael