Merge branch 'scale-amd64' of git+ssh://amsterdam.csail.mit.edu/home/am0/6.828/xv6 into scale-amd64

78f3eed9 · Silas Boyd-Wickizer · 4c97b4dd · d0bfd9dc · 78f3eed9
--- a/kernel/distref.cc
+++ b/kernel/distref.cc
@@ -202,7 +202,8 @@ distref_thread(void *x)
 {
  for (;;) {
    acquire(&wake_lock);
-    cv_sleepto(&wake_cv, &wake_lock, nsectime() + 1000000000);
+    cv_sleepto(&wake_cv, &wake_lock,
+               nsectime() + ((u64)GCINTERVAL)*1000000ull);
    release(&wake_lock);

    // Phase 1: Reconcile reference counts