memfd_secret.2: mention ENOSYS is also returned when secretmem_enable=0

Ref: https://lore.kernel.org/all/20210518072034.31572-5-rppt@kernel.org/
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>

diff --git a/man2/memfd_secret.2 b/man2/memfd_secret.2
index 28c2f177a4e22e4631c063326fd33ff80dd79969..ebafa138b7093c327ea584b938042f9dddc7564c 100644 (file)
--- a/man2/memfd_secret.2
+++ b/man2/memfd_secret.2
@@ -141,7 +141,9 @@ There was insufficient memory to create a new anonymous file.
 .TP
 .B ENOSYS
 .BR memfd_secret ()
-is not implemented on this architecture.
+is not implemented on this architecture,
+or has not been enabled on the kernel command-line with
+.BR secretmem_enable =1.
 .SH VERSIONS
 The
 .BR memfd_secret ()