From 265b9898dfe2f31c221a01e8c17c3055e72784bc Mon Sep 17 00:00:00 2001
From: Alejandro Colomar <alx@kernel.org>
Date: Fri, 9 May 2025 11:53:50 +0200
Subject: [PATCH] man/man2/: VERSIONS: POSIX.1-2024 specifies *_CLOFORK, but
 Linux doesn't support it

Link: <https://lore.kernel.org/all/20200515160342.GE23230@ZenIV.linux.org.uk/>
Cc: Mateusz Guzik <mjguzik@gmail.com>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: Chuck Lever <chuck.lever@oracle.com>
Cc: <linux-fsdevel@vger.kernel.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
---
 man/man2/fcntl.2 | 6 ++++++
 man/man2/open.2  | 4 ++++
 2 files changed, 10 insertions(+)

diff --git a/man/man2/fcntl.2 b/man/man2/fcntl.2
index bf2605929..b5ace140c 100644
--- a/man/man2/fcntl.2
+++ b/man/man2/fcntl.2
@@ -1769,6 +1769,12 @@ but
 was not open for writing
 or the current set of seals on the file already includes
 .BR F_SEAL_SEAL .
+.SH VERSIONS
+POSIX.1-2024 specifies
+.B FD_CLOFORK
+and
+.BR F_DUPFD_CLOFORK ,
+but Linux doesn't support them.
 .SH STANDARDS
 POSIX.1-2008.
 .P
diff --git a/man/man2/open.2 b/man/man2/open.2
index 0f24f5fb8..237b671d4 100644
--- a/man/man2/open.2
+++ b/man/man2/open.2
@@ -1385,6 +1385,10 @@ system call, rather than the kernel's
 system call.
 For certain architectures, this is also true before glibc 2.26.
 .\"
+.SS POSIX
+POSIX.1-2024 specifies
+.BR O_CLOFORK ,
+but Linux doesn't support it.
 .SH STANDARDS
 .TP
 .BR open ()
-- 
2.47.2