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8033923: Use BufferingOopClosure for G1 code root scanning

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Reviewed-by: mgerdin, brutisso
This commit is contained in:
Stefan Karlsson 2014-02-10 12:58:09 +01:00
parent f0eaf32781
commit 5d460f1f3d
1 changed files with 5 additions and 8 deletions
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13
hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
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@ -5115,15 +5115,12 @@ g1_process_strong_roots(bool is_scavenging,
BufferingOopClosure buf_scan_non_heap_roots(scan_non_heap_roots);
assert(so & SO_AllCodeCache || scan_rs != NULL, "must scan code roots somehow");
// Walk the code cache/strong code roots w/o buffering, because StarTask
// cannot handle unaligned oop locations.
CodeBlobToOopClosure eager_scan_code_roots(scan_non_heap_roots, true /* do_marking */);
CodeBlobToOopClosure scan_code_roots(&buf_scan_non_heap_roots, true /* do_marking */);
process_strong_roots(false, // no scoping; this is parallel code
so,
&buf_scan_non_heap_roots,
&eager_scan_code_roots,
&scan_code_roots,
scan_klasses
);
@ -5177,9 +5174,9 @@ g1_process_strong_roots(bool is_scavenging,
g1_policy()->phase_times()->record_strong_code_root_mark_time(worker_i, mark_strong_code_roots_ms);
// Now scan the complement of the collection set.
if (scan_rs != NULL) {
g1_rem_set()->oops_into_collection_set_do(scan_rs, &eager_scan_code_roots, worker_i);
}
CodeBlobToOopClosure eager_scan_code_roots(scan_non_heap_roots, true /* do_marking */);
g1_rem_set()->oops_into_collection_set_do(scan_rs, &eager_scan_code_roots, worker_i);
_process_strong_tasks->all_tasks_completed();
}