From d5c5b4b382e3b6e3549287e313a0020162a0e686 Mon Sep 17 00:00:00 2001
From: Edward Tomasz Napierala <trasz@FreeBSD.org>
Date: Sat, 18 Jul 2020 12:21:08 +0000
Subject: [PATCH] Make linux fallocate(2) return EOPNOTSUPP, not ENOSYS, on
 unsupported mode, as documented in the man page.

MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
---
 sys/compat/linux/linux_file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/compat/linux/linux_file.c b/sys/compat/linux/linux_file.c
index 3267bf2313ef..ba3a86b8b919 100644
--- a/sys/compat/linux/linux_file.c
+++ b/sys/compat/linux/linux_file.c
@@ -1670,7 +1670,7 @@ linux_fallocate(struct thread *td, struct linux_fallocate_args *args)
 	 * mode should be 0.
 	 */
 	if (args->mode != 0)
-		return (ENOSYS);
+		return (EOPNOTSUPP);
 
 #if defined(__amd64__) && defined(COMPAT_LINUX32)
 	len = PAIR32TO64(off_t, args->len);