fix rsyncable mode

diff --git a/lib/compress/zstdmt_compress.c b/lib/compress/zstdmt_compress.c
index 5f822da44ac96082016ff6804f24611028c032cc..cfd75cc4932cd3083fce9e9853481ec91909673d 100644 (file)
--- a/lib/compress/zstdmt_compress.c
+++ b/lib/compress/zstdmt_compress.c
@@ -1240,9 +1240,8 @@ size_t ZSTDMT_initCStream_internal(
 
     if (params.rsyncable) {
         /* Aim for the targetsectionSize as the average job size. */
-        U32 const jobSizeMB = (U32)(mtctx->targetSectionSize >> 20);
-        U32 const rsyncBits = ZSTD_highbit32(jobSizeMB) + 20;
-        assert(jobSizeMB >= 1);
+        U32 const jobSizeKB = (U32)(mtctx->targetSectionSize >> 10);
+        U32 const rsyncBits = (assert(jobSizeKB >= 1), ZSTD_highbit32(jobSizeKB) + 10);
         DEBUGLOG(4, "rsyncLog = %u", rsyncBits);
         mtctx->rsync.hash = 0;
         mtctx->rsync.hitMask = (1ULL << rsyncBits) - 1;