From bdaf3c458ce1ed497caa10ccc6a0b819fd3c32a7 Mon Sep 17 00:00:00 2001
From: Thiago Macieira <thiago.macieira@intel.com>
Date: Wed, 12 Oct 2022 18:15:36 -0700
Subject: [PATCH] IPC: remove the rekeying optimization for System V semaphores
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It's hard to maintain it with multiple backends and I don't see the need
for it.

Change-Id: I12a088d1ae424825abd3fffd171d7bf6bbdf9a99
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
---
 src/corelib/ipc/qsystemsemaphore.cpp | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/src/corelib/ipc/qsystemsemaphore.cpp b/src/corelib/ipc/qsystemsemaphore.cpp
index a5c236824f..f7a9946ecd 100644
--- a/src/corelib/ipc/qsystemsemaphore.cpp
+++ b/src/corelib/ipc/qsystemsemaphore.cpp
@@ -186,15 +186,6 @@ void QSystemSemaphore::setNativeKey(const QNativeIpcKey &key, int initialValue,
     }
 
     d->clearError();
-#if !defined(Q_OS_WIN) && !defined(QT_POSIX_IPC)
-    // optimization to not destroy/create the file & semaphore
-    if (key == d->nativeKey && mode == Create && d->backend.createdSemaphore && d->backend.createdFile) {
-        d->initialValue = initialValue;
-        d->backend.unix_key = -1;
-        d->handle(mode);
-        return;
-    }
-#endif
     d->cleanHandle();
     d->nativeKey = key;
     d->initialValue = initialValue;