From a8daa2d683be1f19cf9bf5c16544b17dcad7eb91 Mon Sep 17 00:00:00 2001
From: Nick Terrell <terrelln@fb.com>
Date: Thu, 8 Nov 2018 10:45:53 -0800
Subject: [PATCH] Signal before unlocking in pool.c

---
 lib/common/pool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/common/pool.c b/lib/common/pool.c
index 281b3824..7a829454 100644
--- a/lib/common/pool.c
+++ b/lib/common/pool.c
@@ -88,8 +88,8 @@ static void* POOL_thread(void* opaque) {
             ctx->numThreadsBusy++;
             ctx->queueEmpty = ctx->queueHead == ctx->queueTail;
             /* Unlock the mutex, signal a pusher, and run the job */
-            ZSTD_pthread_mutex_unlock(&ctx->queueMutex);
             ZSTD_pthread_cond_signal(&ctx->queuePushCond);
+            ZSTD_pthread_mutex_unlock(&ctx->queueMutex);
 
             job.function(job.opaque);