From 10c91364946ec3b4cfcc1544a03830da4bd6d696 Mon Sep 17 00:00:00 2001
From: Brad Greenlee <brad@etsy.com>
Date: Thu, 15 Dec 2022 13:13:13 -0800
Subject: [PATCH] fix(zstd): default back to GOMAXPROCS concurrency

An upstream change in klauspost/compress#498 changed the default decoder
concurrency from GOMAXPROCS to a maximum of 4. Explicitly pass a value
of 0 via WithDecoderConcurrency so that GOMAXPROCS is used by default
again.
---
 zstd.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/zstd.go b/zstd.go
index f28db806e..6073ce7c4 100644
--- a/zstd.go
+++ b/zstd.go
@@ -57,7 +57,7 @@ func getDecoder(params ZstdDecoderParams) *zstd.Decoder {
 	}
 	// It's possible to race and create multiple new readers.
 	// Only one will survive GC after use.
-	zstdDec, _ := zstd.NewReader(nil)
+	zstdDec, _ := zstd.NewReader(nil, zstd.WithDecoderConcurrency(0))
 	zstdDecMap.Store(params, zstdDec)
 	return zstdDec
 }