8047290: Make Mutex::_no_safepoint_check_flag locks verify that this lock never checks for safepoint

Ensure consistent safepoint checking in Mutex/Monitor locking methods.

Reviewed-by: dholmes, dcubed, coleenp
This commit is contained in:
Max Ockner 2014-12-11 21:34:43 -05:00 committed by Coleen Phillimore
parent bb30bd7e0a
commit 1d76295d70
32 changed files with 447 additions and 134 deletions

View file

@ -391,7 +391,8 @@ int VM_Exit::wait_for_threads_in_native_to_block() {
assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint already");
Thread * thr_cur = ThreadLocalStorage::get_thread_slow();
Monitor timer(Mutex::leaf, "VM_Exit timer", true);
Monitor timer(Mutex::leaf, "VM_Exit timer", true,
Monitor::_safepoint_check_never);
// Compiler threads need longer wait because they can access VM data directly
// while in native. If they are active and some structures being used are