Fix comment about art::gc::collector::kDisallowReadBarrierDuringScan.
Test: n/a
Bug: 12687968
Change-Id: I696b1c9e2a082dcd77c944477abf65d475806e30
diff --git a/runtime/gc/collector/concurrent_copying.cc b/runtime/gc/collector/concurrent_copying.cc
index edaa043..b03f671 100644
--- a/runtime/gc/collector/concurrent_copying.cc
+++ b/runtime/gc/collector/concurrent_copying.cc
@@ -53,9 +53,9 @@
// If kFilterModUnionCards then we attempt to filter cards that don't need to be dirty in the mod
// union table. Disabled since it does not seem to help the pause much.
static constexpr bool kFilterModUnionCards = kIsDebugBuild;
-// If kDisallowReadBarrierDuringScan is true then the GC aborts if there are any that occur during
-// ConcurrentCopying::Scan. May be used to diagnose possibly unnecessary read barriers.
-// Only enabled for kIsDebugBuild to avoid performance hit.
+// If kDisallowReadBarrierDuringScan is true then the GC aborts if there are any read barrier that
+// occur during ConcurrentCopying::Scan in GC thread. May be used to diagnose possibly unnecessary
+// read barriers. Only enabled for kIsDebugBuild to avoid performance hit.
static constexpr bool kDisallowReadBarrierDuringScan = kIsDebugBuild;
// Slow path mark stack size, increase this if the stack is getting full and it is causing
// performance problems.
