X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=man%2Fsystemd.swap.xml;h=1155758e28d86aeed6b095278edaab8a80412917;hp=8268e6164d91238a8becc58165209c568425daee;hb=86e1f46f92ff4c447ea32a6892ea394c6e6ef541;hpb=845c53246f73a505f12bb7f685a530045fa60a40

diff --git a/man/systemd.swap.xml b/man/systemd.swap.xml
index 8268e6164..1155758e2 100644
--- a/man/systemd.swap.xml
+++ b/man/systemd.swap.xml
@@ -55,7 +55,7 @@
                 <title>Description</title>
 
                 <para>A unit configuration file whose name ends in
-                <filename>.swap</filename> encodes information about a
+                <literal>.swap</literal> encodes information about a
                 swap device or file for memory paging controlled and
                 supervised by systemd.</para>
 
@@ -73,16 +73,19 @@
                 which define the execution environment the
                 <citerefentry><refentrytitle>swapon</refentrytitle><manvolnum>8</manvolnum></citerefentry>
                 binary is executed in, and in
-                <citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+                <citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                 which define the way the processes are
-                terminated.</para>
+                terminated, and in
+                <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+                which configure resource control settings for the
+                processes of the service.</para>
 
                 <para>Swap units must be named after the devices
                 or files they control. Example: the swap device
                 <filename noindex='true'>/dev/sda5</filename> must be configured in a
                 unit file <filename>dev-sda5.swap</filename>. For
                 details about the escaping logic used to convert a
-                file system path to a unit name see
+                file system path to a unit name, see
                 <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
 
                 <para>All swap units automatically get the appropriate
@@ -111,15 +114,43 @@
                 for details about the conversion.</para>
 
                 <para>If a swap device or file is configured in both
-                <filename>/etc/fstab</filename> and a unit file the
+                <filename>/etc/fstab</filename> and a unit file, the
                 configuration in the latter takes precedence.</para>
 
-                <para>Unless the <option>noauto</option> option is set
-                for them all swap units configured in
-                <filename>/etc/fstab</filename> are also added as
-                requirements to <filename>swap.target</filename>, so
-                that they are waited for and activated during
-                boot.</para>
+                <para>When reading <filename>/etc/fstab</filename> a
+                few special options are understood by systemd which
+                influence how dependencies are created for swap
+                units.</para>
+
+                <variablelist class='fstab-options'>
+                  <varlistentry>
+                    <term><option>noauto</option></term>
+                    <term><option>auto</option></term>
+
+                    <listitem><para>With <option>noauto</option> the
+                    swap unit will not be added as a dependency for
+                    <filename>swap.target</filename>. This means that
+                    it will not be activated automatically during
+                    boot, unless it is pulled in by some other
+                    unit. Option <option>auto</option> has the
+                    opposite meaning and is the default.</para>
+                    </listitem>
+                  </varlistentry>
+
+                  <varlistentry>
+                    <term><option>nofail</option></term>
+                    <term><option>fail</option></term>
+
+                    <listitem><para>With <option>nofail</option> the
+                    swap unit will be only wanted, not required by
+                    <filename>swap.target</filename>. This means that
+                    the boot will continue even if this swap device is
+                    not activated successfully. Option
+                    <option>fail</option> has the opposite meaning and
+                    is the default.</para>
+                    </listitem>
+                  </varlistentry>
+                </variablelist>
         </refsect1>
 
         <refsect1>
@@ -167,24 +198,40 @@
                                 setting is optional.</para></listitem>
                         </varlistentry>
 
+                        <varlistentry>
+                                <term><varname>Options=</varname></term>
+
+                                <listitem><para>May contain an option
+                                string for the swap device. This may
+                                be used for controlling discard
+                                options among other functionality, if
+                                the swap backing device supports the
+                                discard or trim operation. (See
+                                <citerefentry><refentrytitle>swapon</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+                                for more information.)
+                                </para></listitem>
+                        </varlistentry>
+
                         <varlistentry>
                                 <term><varname>TimeoutSec=</varname></term>
                                 <listitem><para>Configures the time to
                                 wait for the swapon command to
                                 finish. If a command does not exit
-                                within the configured time the swap
+                                within the configured time, the swap
                                 will be considered failed and be shut
                                 down again. All commands still running
                                 will be terminated forcibly via
-                                SIGTERM, and after another delay of
-                                this time with SIGKILL. (See
+                                <constant>SIGTERM</constant>, and after another delay of
+                                this time with <constant>SIGKILL</constant>. (See
                                 <option>KillMode=</option> in
                                 <citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>.)
                                 Takes a unit-less value in seconds, or
                                 a time span value such as "5min
-                                20s". Pass 0 to disable the timeout
-                                logic. Defaults to
-                                90s.</para></listitem>
+                                20s". Pass <literal>0</literal> to disable the timeout
+                                logic. Defaults to <varname>DefaultTimeoutStartSec=</varname> from the
+                                manager configuration file
+                                (see <citerefentry><refentrytitle>systemd-system.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>).
+                                </para></listitem>
                         </varlistentry>
                 </variablelist>
 
@@ -199,10 +246,11 @@
                   <title>See Also</title>
                   <para>
                           <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
-                          <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+                          <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+                          <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>systemd.device</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>swapon</refentrytitle><manvolnum>8</manvolnum></citerefentry>,