README: add requirements for IPAddress{Allow,Deny} (#7414)

Document kernel options needed for IPAddress{Allow,Deny}.

diff --git a/README b/README
index 130141aaed6869ce5a76efdb118eb44dd034179b..b245564f5458ca4bb66dd7d2d4a5f0567bd85070 100644 (file)
--- a/README
+++ b/README
@@ -94,6 +94,10 @@ REQUIREMENTS:
         Required for CPUQuota= in resource control unit settings
           CONFIG_CFS_BANDWIDTH
 
+        Required for IPAddressDeny= and IPAddressAllow= in resource control
+        unit settings
+          CONFIG_CGROUP_BPF
+
         For UEFI systems:
           CONFIG_EFIVAR_FS
           CONFIG_EFI_PARTITION