From 56c8dabfbc6a6dc8cb6a066d0b74f861b9d16327 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Johannes=20Wei=C3=9Fl?= <jargon@molb.org>
Date: Mon, 17 Mar 2014 01:05:08 +0100
Subject: Add 'disksup_posix_only' parameter to disksup

On embedded (Linux) systems the "df" program is very often provided by
the Busybox (or Toolbox) project. This version does not provide the "-l"
option (for displaying only local filesystems) used in disksup.erl.

To make disksup work on these embedded platforms, this patch adds a new
application parameter 'disksup_posix_only', to make diskup use only
options defined in the POSIX standard:
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/df.html
---
 lib/os_mon/doc/src/disksup.xml | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'lib/os_mon/doc')

diff --git a/lib/os_mon/doc/src/disksup.xml b/lib/os_mon/doc/src/disksup.xml
index dbcfd65095..c8566d0126 100644
--- a/lib/os_mon/doc/src/disksup.xml
+++ b/lib/os_mon/doc/src/disksup.xml
@@ -73,6 +73,16 @@
           much disk can be utilized before the <c>disk_almost_full</c>
           alarm is set. The default is 0.80 (80%).</p>
       </item>
+      <tag><c>disksup_posix_only = bool()</c></tag>
+      <item>
+        <p>Specifies whether the <c>disksup</c> helper process should only
+          use POSIX conformant commands (<c>true</c>) or not. The default is
+          <c>false</c>. Setting this parameter to <c>true</c> can be
+          necessary on embedded systems with stripped-down versions
+          of Unix tools like <c>df</c>. The returned disk data and alarms
+          can be different when using this option.</p>
+        <p>The parameter is ignored on Windows.</p>
+      </item>
     </taglist>
     <p>See <seealso marker="kernel:config">config(4)</seealso> for
       information about how to change the value of configuration
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