From f5be127e1d271b8c35ac74fbe10d4d25ee2c7e61 Mon Sep 17 00:00:00 2001
From: Casey Bodley <cbodley@redhat.com>
Date: Wed, 29 Jun 2016 15:10:31 -0400
Subject: [PATCH] rgw: add deadlock detection to RGWCoroutinesManager::run()

Signed-off-by: Casey Bodley <cbodley@redhat.com>
---
 src/rgw/rgw_coroutine.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/rgw/rgw_coroutine.cc b/src/rgw/rgw_coroutine.cc
index a09afc85532..b1ff62dc97b 100644
--- a/src/rgw/rgw_coroutine.cc
+++ b/src/rgw/rgw_coroutine.cc
@@ -570,6 +570,7 @@ int RGWCoroutinesManager::run(list<RGWCoroutinesStack *>& stacks)
   }
 
   lock.get_write();
+  assert(context_stacks.empty() || going_down.read()); // assert on deadlock
   for (auto stack : context_stacks) {
     ldout(cct, 20) << "clearing stack on run() exit: stack=" << (void *)stack << " nref=" << stack->get_nref() << dendl;
     stack->put();
-- 
2.39.5