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8229844: Remove attempt_rebias parameter from revoke_and_rebias()

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Removed attempt_rebias parameter and merged fast_enter() and slow_enter() into enter()

Reviewed-by: dholmes, rehn, coleenp, dcubed
This commit is contained in:
Patricio Chilano Mateo 2019-08-27 20:10:06 +00:00
parent 702199983a
commit 85dbabe345
14 changed files with 125 additions and 249 deletions
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19
src/hotspot/share/runtime/synchronizer.hpp
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@ -65,22 +65,9 @@ class ObjectSynchronizer : AllStatic {
// exit must be implemented non-blocking, since the compiler cannot easily handle
// deoptimization at monitor exit. Hence, it does not take a Handle argument.
// This is full version of monitor enter and exit. I choose not
// to use enter() and exit() in order to make sure user be ware
// of the performance and semantics difference. They are normally
// used by ObjectLocker etc. The interpreter and compiler use
// assembly copies of these routines. Please keep them synchronized.
//
// attempt_rebias flag is used by UseBiasedLocking implementation
static void fast_enter(Handle obj, BasicLock* lock, bool attempt_rebias,
TRAPS);
static void fast_exit(oop obj, BasicLock* lock, Thread* THREAD);
// WARNING: They are ONLY used to handle the slow cases. They should
// only be used when the fast cases failed. Use of these functions
// without previous fast case check may cause fatal error.
static void slow_enter(Handle obj, BasicLock* lock, TRAPS);
static void slow_exit(oop obj, BasicLock* lock, Thread* THREAD);
// This is the "slow path" version of monitor enter and exit.
static void enter(Handle obj, BasicLock* lock, TRAPS);
static void exit(oop obj, BasicLock* lock, Thread* THREAD);
// Used only to handle jni locks or other unmatched monitor enter/exit
// Internally they will use heavy weight monitor.