[tor-commits] [tor/master] add an explanatory comment

[nickm at torproject.org]

commit d4c17162632b662c333fb09b930838c3884a6fc7
Author: Nick Mathewson <nickm at torproject.org>
Date:   Thu Mar 12 11:28:18 2015 -0400

    add an explanatory comment
---
 src/or/cpuworker.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/or/cpuworker.c b/src/or/cpuworker.c
index e3781ad..d511ecf 100644
--- a/src/or/cpuworker.c
+++ b/src/or/cpuworker.c
@@ -178,8 +178,12 @@ update_state_threadfn(void *state_, void *work_)
 void
 cpuworkers_rotate_keyinfo(void)
 {
-  if (!threadpool)
+  if (!threadpool) {
+    /* If we're a client, then we won't have cpuworkers, and we won't need
+     * to tell them to rotate their state.
+     */
     return;
+  }
   if (threadpool_queue_update(threadpool,
                               worker_state_new,
                               update_state_threadfn,