From: Tongliang Deng <dengtongliang@gmail.com>
Date: Thu, 16 Jun 2022 03:46:30 +0000 (+0000)
Subject: rgwlc: fix backoff sleep_ms always 0
X-Git-Tag: v18.0.0~438^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=377955f35df03eb6c8bc589118109a4466b146cd;p=ceph.git

rgwlc: fix backoff sleep_ms always 0

SimpleBackoff from c069eb7ff09b52003fa00a5cc83b1e52370032f5 has
`sleep_ms` which is wrongly set to 0 after the first iteration.
Fix it with first retry as no-op sleep call.

Signed-off-by: Tongliang Deng <dengtongliang@gmail.com>
---

diff --git a/src/rgw/rgw_lc.cc b/src/rgw/rgw_lc.cc
index da2bd841e583..85d3da663ea1 100644
--- a/src/rgw/rgw_lc.cc
+++ b/src/rgw/rgw_lc.cc
@@ -1671,9 +1671,7 @@ public:
       if (r) {
 	return r;
       }
-      std::this_thread::sleep_for(sleep_ms);
-      sleep_ms = std::chrono::milliseconds(sleep_ms*2*retries);
-      ++retries;
+      std::this_thread::sleep_for(sleep_ms * 2 * retries++);
     }
     return false;
   }