flag to avoid stealing in the workqueue code, needed to ensure

the exec-cleanup and wait-cleanup handlers run on the right core (disabled by default). forkexectree now shares relatively little with steal_nonexec=0 and wq_steal_others=0.

flag to avoid stealing in the workqueue code, needed to ensure
c1d09e43 · Nickolai Zeldovich · f58d6070 · c1d09e43
--- a/lib/wq.cc
+++ b/lib/wq.cc
@@ -9,6 +9,8 @@

 #define NSLOTS (1 << WQSHIFT)

+enum { wq_steal_others = 1 };
+
 class wq {
 public:
  wq();
@@ -187,6 +189,9 @@ wq::pop(int c)
 inline work*
 wq::steal(int c)
 {
+  if (!wq_steal_others && (c != mycpuid()))
+    return 0;
+
  struct wqueue *q = &q_[c];
  work *w;
  int i;