From f201ecdd5184e6feaa68b6c8ab26978fadbd05ad Mon Sep 17 00:00:00 2001
From: Vitaliy Filippov <vitalif@yourcmc.ru>
Date: Sat, 24 May 2025 00:56:31 +0300
Subject: [PATCH] Fix missing mutex unlock with zero-copy and iothreads O_o

---
 src/util/ringloop.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/util/ringloop.cpp b/src/util/ringloop.cpp
index 6ca044b4..99d6a15f 100644
--- a/src/util/ringloop.cpp
+++ b/src/util/ringloop.cpp
@@ -125,6 +125,8 @@ void ring_loop_t::loop()
         if (cqe->flags & IORING_CQE_F_MORE)
         {
             // There will be a second notification
+            if (mt)
+                mu.unlock();
             d->res = cqe->res;
             d->more = true;
             if (d->callback)