[14] RFR 8237396: JvmtiTagMap::weak_oops_do() should not trigger barriers

Zhengyu Gu zgu at redhat.com
Fri Jan 17 15:28:42 UTC 2020


Please review this small patch that avoids barriers in 
JvmtiTagMap::weak_oops_do() method.

The method is used by GC and GC expects to see raw oops.


Bug: https://bugs.openjdk.java.net/browse/JDK-8237396
Webrev: http://cr.openjdk.java.net/~zgu/JDK-8237396/webrev.00/

Test:
   hotspot_gc
   vmTestbase_nsk_jvmti
   (fastdebug and release) on x86_64 Linux

   Submit test in progress.

Thanks,

-Zhengyu



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