man: how to unset CPUQuota=

This description will help users who are trying to reset the already configured
CPUQuota= by trying incorrect ways such as CPUQuota=0 or CPUQUota=infinity.

(cherry picked from commit 17cfd6f96f43ec012b80b417878d87df85b07977)
(cherry picked from commit ab3095ef3d4ce8fe67cddae6b9698bbcb638a4d1)

diff --git a/man/systemd.resource-control.xml b/man/systemd.resource-control.xml
index c4395b19120e53ec5c525e1a3a013e9338aacd27..077c3bad901313e54079166c8d46ffa7b94e0f4d 100644 (file)
--- a/man/systemd.resource-control.xml
+++ b/man/systemd.resource-control.xml
@@ -208,7 +208,8 @@
           <literal>cpu.max</literal> attribute on the unified control group hierarchy and
           <literal>cpu.cfs_quota_us</literal> on legacy. For details about these control group attributes, see <ulink
           url="https://www.kernel.org/doc/html/latest/admin-guide/cgroup-v2.html">Control Groups v2</ulink> and <ulink
-          url="https://www.kernel.org/doc/Documentation/scheduler/sched-bwc.txt">sched-bwc.txt</ulink>.</para>
+          url="https://www.kernel.org/doc/Documentation/scheduler/sched-bwc.txt">sched-bwc.txt</ulink>.
+          Setting <varname>CPUQuota=</varname> to an empty value unsets the quota.</para>
 
           <para>Example: <varname>CPUQuota=20%</varname> ensures that the executed processes will never get more than
           20% CPU time on one CPU.</para>