From b0ce25e705f935e70f0840c3ba3436067553f6e2 Mon Sep 17 00:00:00 2001
From: Craig Tiller <ctiller@google.com>
Date: Fri, 8 Sep 2017 14:42:26 -0700
Subject: [PATCH] Add comment

---
 src/core/lib/iomgr/executor.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/core/lib/iomgr/executor.c b/src/core/lib/iomgr/executor.c
index a41c43edfd2..6e8c896ed6e 100644
--- a/src/core/lib/iomgr/executor.c
+++ b/src/core/lib/iomgr/executor.c
@@ -230,6 +230,10 @@ static void executor_push(grpc_exec_ctx *exec_ctx, grpc_closure *closure,
       }
       gpr_mu_lock(&ts->mu);
       if (ts->queued_long_job) {
+        // if there's a long job queued, we never queue anything else to this
+        // queue (since long jobs can take 'infinite' time and we need to
+        // guarantee no starvation)
+        // ... spin through queues and try again
         gpr_mu_unlock(&ts->mu);
         size_t idx = (size_t)(ts - g_thread_state);
         ts = &g_thread_state[(idx + 1) % cur_thread_count];