From 6a1de1912d5216512a73dd97c4ee454d44b8fffb Mon Sep 17 00:00:00 2001
From: Mateusz Piotrowski <0mp@FreeBSD.org>
Date: Mon, 18 Sep 2023 20:51:50 +0100
Subject: [PATCH] tmpfs.5: Document option nomtime

Fixes:	c1e84733ac7e tmpfs: add nomtime mount option,
MFC after:	7 days
---
 share/man/man5/tmpfs.5 | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/share/man/man5/tmpfs.5 b/share/man/man5/tmpfs.5
index c442b868dd1..8fff1c15815 100644
--- a/share/man/man5/tmpfs.5
+++ b/share/man/man5/tmpfs.5
@@ -127,6 +127,13 @@ The default is the maximum possible value.
 .It Cm mode
 Set the mode (in octal notation) of the root inode of the file system.
 The default is the mount point's mode.
+.It Cm nomtime
+Disable the tracking of mtime updates caused by writes to the
+shared mapped areas backed by
+.Nm
+files.
+This option removes periodic scans,
+which downgrade read-write-mapped pages to read-only to note the writes.
 .It Cm nonc
 Do not use namecache to resolve names to files for the created mount.
 This saves memory, but currently might impair scalability for highly