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8210155: Lock ClassLoaderDataGraph

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In preparation for concurrent class unloading.

Reviewed-by: hseigel, eosterlund
This commit is contained in:
Coleen Phillimore 2018-08-31 07:03:46 -04:00
parent 71479d029a
commit eb9259138f
19 changed files with 199 additions and 82 deletions
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src/hotspot/share/runtime/mutexLocker.hpp
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@ -145,6 +145,7 @@ extern Mutex* UnsafeJlong_lock; // provides Unsafe atomic updat
#endif
extern Mutex* MetaspaceExpand_lock; // protects Metaspace virtualspace and chunk expansions
extern Mutex* ClassLoaderDataGraph_lock; // protects CLDG list, needed for concurrent unloading
extern Monitor* CodeHeapStateAnalytics_lock; // lock print functions against concurrent analyze functions.