1 files changed, 6 insertions, 4 deletions
diff --git a/rts/sm/GC.h b/rts/sm/GC.h
index c6b0c13a46..437a25f8d9 100644
--- a/rts/sm/GC.h
+++ b/rts/sm/GC.h
@@ -26,6 +26,8 @@ typedef void (*evac_fn)(void *user, StgClosure **root);
 StgClosure * isAlive      ( StgClosure *p );
 void         markCAFs     ( evac_fn evac, void *user );
 
+bool doIdleGCWork(Capability *cap, bool all);
+
 extern uint32_t N;
 extern bool major_gc;
 
@@ -40,13 +42,13 @@ extern uint32_t mutlist_MUTVARS, mutlist_MUTARRS, mutlist_MVARS, mutlist_OTHERS,
     mutlist_TVAR,
     mutlist_TVAR_WATCH_QUEUE,
     mutlist_TREC_CHUNK,
-    mutlist_TREC_HEADER,
-    mutlist_ATOMIC_INVARIANT,
-    mutlist_INVARIANT_CHECK_QUEUE;
+    mutlist_TREC_HEADER;
 #endif
 
 #if defined(PROF_SPIN) && defined(THREADED_RTS)
-extern StgWord64 whitehole_spin;
+extern volatile StgWord64 whitehole_gc_spin;
+extern volatile StgWord64 waitForGcThreads_spin;
+extern volatile StgWord64 waitForGcThreads_yield;
 #endif
 
 void gcWorkerThread (Capability *cap);