From 9e576b889182603bdff34ddf82a4901e83d0aaef Mon Sep 17 00:00:00 2001
From: Shiming Zhang <wzshiming@foxmail.com>
Date: Mon, 29 Mar 2021 10:27:51 +0800
Subject: [PATCH] Optimize backoff

Signed-off-by: Shiming Zhang <wzshiming@foxmail.com>
---
 content/local/store.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/content/local/store.go b/content/local/store.go
index 93121ad5e..cb6aae829 100644
--- a/content/local/store.go
+++ b/content/local/store.go
@@ -465,7 +465,6 @@ func (s *store) Writer(ctx context.Context, opts ...content.WriterOpt) (content.
 	}
 	var lockErr error
 	for count := uint64(0); count < 10; count++ {
-		time.Sleep(time.Millisecond * time.Duration(rand.Intn(1<<count)))
 		if err := tryLock(wOpts.Ref); err != nil {
 			if !errdefs.IsUnavailable(err) {
 				return nil, err
@@ -476,6 +475,7 @@ func (s *store) Writer(ctx context.Context, opts ...content.WriterOpt) (content.
 			lockErr = nil
 			break
 		}
+		time.Sleep(time.Millisecond * time.Duration(rand.Intn(1<<count)))
 	}
 
 	if lockErr != nil {