archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-20 11:04:34 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8029396: PPC64 (part 212): Several memory ordering fixes in C-code

Browse source 
Memory ordering fixes in GC and other runtime code showing on PPC64.

Reviewed-by: kvn, coleenp
This commit is contained in:
Goetz Lindenmaier 2013-12-02 10:26:14 +01:00
parent 1b2bf0be10
commit 46c4ef6572
16 changed files with 99 additions and 34 deletions
Download patch file Download diff file Expand all files Collapse all files

11
hotspot/src/share/vm/memory/cardTableModRefBS.hpp
View file

@ -292,7 +292,7 @@ public:
// these functions here for performance.
protected:
void write_ref_field_work(oop obj, size_t offset, oop newVal);
virtual void write_ref_field_work(void* field, oop newVal);
virtual void write_ref_field_work(void* field, oop newVal, bool release = false);
public:
bool has_write_ref_array_opt() { return true; }
@ -324,9 +324,14 @@ public:
template <class T> inline void inline_write_ref_field_pre(T* field, oop newVal) {}
template <class T> inline void inline_write_ref_field(T* field, oop newVal) {
template <class T> inline void inline_write_ref_field(T* field, oop newVal, bool release) {
jbyte* byte = byte_for((void*)field);
*byte = dirty_card;
if (release) {
// Perform a releasing store if requested.
OrderAccess::release_store((volatile jbyte*) byte, dirty_card);
} else {
*byte = dirty_card;
}
}
// These are used by G1, when it uses the card table as a temporary data