diff --git a/benchmarks/dirty_benchmark.py b/benchmarks/dirty_benchmark.py
index f59fdf18da..86ddc40410 100755
--- a/benchmarks/dirty_benchmark.py
+++ b/benchmarks/dirty_benchmark.py
@@ -185,9 +185,6 @@ def exception(self, msg, *args):
     def reopen_files(self):
         pass
 
-    def close_on_exec(self):
-        pass
-
 
 class IsolatedBenchmark:
     """
diff --git a/benchmarks/dirty_streaming.py b/benchmarks/dirty_streaming.py
index f5a279187f..dc92d5ca6e 100644
--- a/benchmarks/dirty_streaming.py
+++ b/benchmarks/dirty_streaming.py
@@ -114,9 +114,6 @@ def warning(self, msg, *args):
     def error(self, msg, *args):
         pass
 
-    def close_on_exec(self):
-        pass
-
     def reopen_files(self):
         pass
 
diff --git a/examples/dirty_example/test_worker_integration.py b/examples/dirty_example/test_worker_integration.py
index acca996178..8f5433be50 100644
--- a/examples/dirty_example/test_worker_integration.py
+++ b/examples/dirty_example/test_worker_integration.py
@@ -31,7 +31,6 @@ def debug(self, msg, *args): print(f"[DEBUG] {msg % args if args else msg}")
     def info(self, msg, *args): print(f"[INFO] {msg % args if args else msg}")
     def warning(self, msg, *args): print(f"[WARN] {msg % args if args else msg}")
     def error(self, msg, *args): print(f"[ERROR] {msg % args if args else msg}")
-    def close_on_exec(self): pass
     def reopen_files(self): pass
 
 
diff --git a/gunicorn/arbiter.py b/gunicorn/arbiter.py
index e0575cce82..7590a6e6f5 100644
--- a/gunicorn/arbiter.py
+++ b/gunicorn/arbiter.py
@@ -228,8 +228,6 @@ def init_signals(self):
         Initialize master signal handling. Most of the signals
         are queued. Child signals only wake up the master.
         """
-        self.log.close_on_exec()
-
         # initialize all signals
         for s in self.SIGNALS:
             signal.signal(s, self.signal)
diff --git a/gunicorn/dirty/worker.py b/gunicorn/dirty/worker.py
index 43b91043d4..5e6cd211c0 100644
--- a/gunicorn/dirty/worker.py
+++ b/gunicorn/dirty/worker.py
@@ -157,10 +157,6 @@ def init_process(self):
         # Reseed random number generator
         util.seed()
 
-        # Prevent fd inheritance
-        util.close_on_exec(self.tmp.fileno())
-        self.log.close_on_exec()
-
         # Set up signals
         self.init_signals()
 
diff --git a/gunicorn/glogging.py b/gunicorn/glogging.py
index 9287d98691..f258bda65f 100644
--- a/gunicorn/glogging.py
+++ b/gunicorn/glogging.py
@@ -411,15 +411,7 @@ def reopen_files(self):
                         handler.release()
 
     def close_on_exec(self):
-        for log in loggers():
-            for handler in log.handlers:
-                if isinstance(handler, logging.FileHandler):
-                    handler.acquire()
-                    try:
-                        if handler.stream:
-                            util.close_on_exec(handler.stream.fileno())
-                    finally:
-                        handler.release()
+        pass
 
     def _get_gunicorn_handler(self, log):
         for h in log.handlers:
diff --git a/gunicorn/util.py b/gunicorn/util.py
index 6dec339f4a..9ed2f17455 100644
--- a/gunicorn/util.py
+++ b/gunicorn/util.py
@@ -271,9 +271,9 @@ def parse_address(netloc, default_port='8000'):
 
 
 def close_on_exec(fd):
-    flags = fcntl.fcntl(fd, fcntl.F_GETFD)
-    flags |= fcntl.FD_CLOEXEC
-    fcntl.fcntl(fd, fcntl.F_SETFD, flags)
+    if not isinstance(fd, int):
+        fd = fd.fileno()
+    os.set_inheritable(fd, False)
 
 
 def set_non_blocking(fd):
diff --git a/gunicorn/workers/base.py b/gunicorn/workers/base.py
index bb74f32123..a53f0e1d18 100644
--- a/gunicorn/workers/base.py
+++ b/gunicorn/workers/base.py
@@ -106,17 +106,9 @@ def init_process(self):
         self.PIPE = os.pipe()
         for p in self.PIPE:
             util.set_non_blocking(p)
-            util.close_on_exec(p)
-
-        # Prevent fd inheritance
-        for s in self.sockets:
-            util.close_on_exec(s)
-        util.close_on_exec(self.tmp.fileno())
 
         self.wait_fds = self.sockets + [self.PIPE[0]]
 
-        self.log.close_on_exec()
-
         self.init_signals()
 
         # start the reloader
diff --git a/gunicorn/workers/sync.py b/gunicorn/workers/sync.py
index c11597f22e..75b3b54493 100644
--- a/gunicorn/workers/sync.py
+++ b/gunicorn/workers/sync.py
@@ -26,7 +26,6 @@ class SyncWorker(base.Worker):
     def accept(self, listener):
         client, addr = listener.accept()
         client.setblocking(1)
-        util.close_on_exec(client)
         self.handle(listener, client, addr)
 
     def wait(self, timeout):
diff --git a/tests/dirty/test_multi_app_routing.py b/tests/dirty/test_multi_app_routing.py
index 4e01b711c3..1d8ee11bdf 100644
--- a/tests/dirty/test_multi_app_routing.py
+++ b/tests/dirty/test_multi_app_routing.py
@@ -57,9 +57,6 @@ def critical(self, msg, *args):
     def exception(self, msg, *args):
         self.messages.append(("exception", msg % args if args else msg))
 
-    def close_on_exec(self):
-        pass
-
     def reopen_files(self):
         pass
 
diff --git a/tests/dirty/test_per_app_worker_allocation.py b/tests/dirty/test_per_app_worker_allocation.py
index abdfb37ee0..be8d0c7c52 100644
--- a/tests/dirty/test_per_app_worker_allocation.py
+++ b/tests/dirty/test_per_app_worker_allocation.py
@@ -34,9 +34,6 @@ def critical(self, msg, *args):
     def exception(self, msg, *args):
         self.messages.append(("exception", msg % args if args else msg))
 
-    def close_on_exec(self):
-        pass
-
     def reopen_files(self):
         pass
 
diff --git a/tests/dirty/test_streaming_integration.py b/tests/dirty/test_streaming_integration.py
index b23fee3867..248b304195 100644
--- a/tests/dirty/test_streaming_integration.py
+++ b/tests/dirty/test_streaming_integration.py
@@ -50,9 +50,6 @@ def warning(self, msg, *args):
     def error(self, msg, *args):
         self.messages.append(("error", msg % args if args else msg))
 
-    def close_on_exec(self):
-        pass
-
     def reopen_files(self):
         pass
 
diff --git a/tests/test_dirty_arbiter.py b/tests/test_dirty_arbiter.py
index c8667b0eca..7da7d96119 100644
--- a/tests/test_dirty_arbiter.py
+++ b/tests/test_dirty_arbiter.py
@@ -88,9 +88,6 @@ def critical(self, msg, *args):
     def exception(self, msg, *args):
         self.messages.append(("exception", msg % args if args else msg))
 
-    def close_on_exec(self):
-        pass
-
     def reopen_files(self):
         pass
 
diff --git a/tests/test_dirty_integration.py b/tests/test_dirty_integration.py
index a841cf2c1c..823e51fbfa 100644
--- a/tests/test_dirty_integration.py
+++ b/tests/test_dirty_integration.py
@@ -136,7 +136,6 @@ def debug(self, *a, **kw): pass
             def info(self, *a, **kw): pass
             def warning(self, *a, **kw): pass
             def error(self, *a, **kw): pass
-            def close_on_exec(self): pass
             def reopen_files(self): pass
 
         cfg = Config()
@@ -205,7 +204,6 @@ def warning(self, *a, **kw): pass
             def error(self, *a, **kw): pass
             def critical(self, *a, **kw): pass
             def exception(self, *a, **kw): pass
-            def close_on_exec(self): pass
             def reopen_files(self): pass
 
         cfg = Config()
@@ -297,7 +295,6 @@ def warning(self, *a, **kw): pass
             def error(self, *a, **kw): pass
             def critical(self, *a, **kw): pass
             def exception(self, *a, **kw): pass
-            def close_on_exec(self): pass
             def reopen_files(self): pass
 
         cfg = Config()
diff --git a/tests/test_dirty_worker.py b/tests/test_dirty_worker.py
index e50e7c4121..66bedbf4f1 100644
--- a/tests/test_dirty_worker.py
+++ b/tests/test_dirty_worker.py
@@ -43,9 +43,6 @@ def warning(self, msg, *args):
     def error(self, msg, *args):
         self.messages.append(("error", msg % args if args else msg))
 
-    def close_on_exec(self):
-        pass
-
     def reopen_files(self):
         pass