From 354b5f1c0a78598ca760acfcb1cd3bb2c18fbae6 Mon Sep 17 00:00:00 2001
From: senhuang42 <senhuang96@fb.com>
Date: Mon, 12 Oct 2020 12:20:18 -0400
Subject: [PATCH] Use cycleLog instead of chainLog to determine LDM jobLog

---
 lib/compress/zstdmt_compress.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/compress/zstdmt_compress.c b/lib/compress/zstdmt_compress.c
index baf6ef4ca..0c9ae69be 100644
--- a/lib/compress/zstdmt_compress.c
+++ b/lib/compress/zstdmt_compress.c
@@ -1184,8 +1184,8 @@ static unsigned ZSTDMT_computeTargetJobLog(const ZSTD_CCtx_params* params)
     if (params->ldmParams.enableLdm) {
         /* In Long Range Mode, the windowLog is typically oversized.
          * In which case, it's preferable to determine the jobSize
-         * based on chainLog instead. */
-        jobLog = MAX(21, params->cParams.chainLog + 4);
+         * based on cycleLog instead. */
+        jobLog = MAX(21, ZSTD_cycleLog(params->cParams.chainLog, params->cParams.strategy) + 4);
     } else {
         jobLog = MAX(20, params->cParams.windowLog + 2);
     }
-- 
2.47.2