From 7bc1f986e8864d9bdcec2fd997f47e6baafb2faf Mon Sep 17 00:00:00 2001
From: Klaus Post <klauspost@gmail.com>
Date: Tue, 22 Mar 2022 09:37:01 -0700
Subject: [PATCH] Do not wait for results when canceled (#14607)

When canceled nobody may be listening for the results.

Prevents memory buildup from cancelled requests.
---
 cmd/metacache-set.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/cmd/metacache-set.go b/cmd/metacache-set.go
index eb96c44a2..7b0473f48 100644
--- a/cmd/metacache-set.go
+++ b/cmd/metacache-set.go
@@ -189,7 +189,11 @@ func (o *listPathOptions) gatherResults(ctx context.Context, in <-chan metaCache
 		}
 		if resCh != nil {
 			resErr = io.EOF
-			resCh <- results
+			select {
+			case <-ctx.Done():
+				// Nobody wants it.
+			case resCh <- results:
+			}
 		}
 	}()
 	return func() (metaCacheEntriesSorted, error) {