From: Borut Mrak <borutmrak@users.noreply.github.com>
Date: Tue, 11 Aug 2015 00:51:36 +0000 (+0200)
Subject: mount.8: Clarify relation between noatime and nodiratime
X-Git-Tag: v2.27-rc2~23^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6e73b6113b35b6a55434ca3e77ff48cc3bc43267;p=thirdparty%2Futil-linux.git

mount.8: Clarify relation between noatime and nodiratime

According to https://lwn.net/Articles/245002/ and checking Linus' git master fs/inode.c it's obvious nodiratime is redundant when mounting with noatime. Clarify that in the man page.
---

diff --git a/sys-utils/mount.8 b/sys-utils/mount.8
index 27839235f4..4af636b592 100644
--- a/sys-utils/mount.8
+++ b/sys-utils/mount.8
@@ -863,7 +863,8 @@ mount options.
 .TP
 .B noatime
 Do not update inode access times on this filesystem (e.g., for faster
-access on the news spool to speed up news servers).
+access on the news spool to speed up news servers). This works for all
+inode types (directories too), so implies nodiratime.
 .TP
 .B auto
 Can be mounted with the
@@ -964,7 +965,8 @@ system.
 Update directory inode access times on this filesystem.  This is the default.
 .TP
 .B nodiratime
-Do not update directory inode access times on this filesystem.
+Do not update directory inode access times on this filesystem. If noatime
+option is set, this option is not needed.
 .TP
 .B dirsync
 All directory updates within the filesystem should be done synchronously.