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8213436: Obsolete UseMembar

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Reviewed-by: kvn, dholmes, mdoerr, adinn
This commit is contained in:
Mikael Vidstedt 2018-11-08 11:45:13 -08:00
parent 38a1e5ffbc
commit f69921f2fc
57 changed files with 43 additions and 655 deletions
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14
src/hotspot/os_cpu/linux_ppc/os_linux_ppc.cpp
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@ -477,20 +477,6 @@ JVM_handle_linux_signal(int sig,
return true;
}
}
// Check to see if we caught the safepoint code in the
// process of write protecting the memory serialization page.
// It write enables the page immediately after protecting it
// so we can just return to retry the write.
if ((sig == SIGSEGV) &&
// Si_addr may not be valid due to a bug in the linux-ppc64 kernel (see comment above).
// Use is_memory_serialization instead of si_addr.
((NativeInstruction*)pc)->is_memory_serialization(thread, ucVoid)) {
// Synchronization problem in the pseudo memory barrier code (bug id 6546278)
// Block current thread until the memory serialize page permission restored.
os::block_on_serialize_page_trap();
return true;
}
}
if (stub != NULL) {