RFR (S): 8191888: Refactor ClassLoaderData::remove_handle to use the Access API
per.liden at oracle.com
Tue Nov 28 15:07:43 UTC 2017
On 2017-11-27 10:06, Erik Österlund wrote:
> The ClassLoaderData::remove_handle() member function currently uses
> explicit G1 SATB barriers to remove an oop from the root set, as these
> handles are not necessarily walked by the GC in a safepoint. Therefore
> G1 needs pre-write barriers.
> This should now be modeled as a
> RootAccess<IN_CONCURRENT_ROOT>::oop_store instead. This maps to
> performing a pre-write SATB barrier with G1, but other GCs are free to
> do other things as necessary.
More information about the hotspot-gc-dev