man: mention that 'udevadm control --exit' restarts systemd-udevd.service

Closes #1802.

diff --git a/man/udevadm.xml b/man/udevadm.xml
index 1aed86a164a5c560539f222110d1cf43ffdaafcc..1a9b7847767fbfdecb1048caf77d35357eb1927f 100644 (file)
--- a/man/udevadm.xml
+++ b/man/udevadm.xml
@@ -371,7 +371,11 @@
           <term><option>-e</option></term>
           <term><option>--exit</option></term>
           <listitem>
-            <para>Signal and wait for systemd-udevd to exit.</para>
+            <para>Signal and wait for systemd-udevd to exit. Note that <filename>systemd-udevd.service</filename>
+            contains <option>Restart=always</option> and so as a result, this option restarts systemd-udevd.
+            If you want to stop <filename>systemd-udevd.service</filename>, please use the following:
+            <programlisting>systemctl stop systemd-udevd-control.socket systemd-udevd-kernel.socket systemd-udevd.service</programlisting>
+            </para>
           </listitem>
         </varlistentry>
         <varlistentry>