Created _Footer (markdown)

_Footer.md

@@ -0,0 +1,35 @@
+From d330b99bee87ec80b834033b1d682fa3b3238818 Mon Sep 17 00:00:00 2001
+From: dharmicksai <dharmicksaik@gmail.com>
+Date: Fri, 26 Aug 2022 22:06:49 +0530
+Subject: [PATCH] Add check for CONFIG_CGROUP_BPF in check-config.sh
+
+cgroup v2 requires CONFIG_CGROUP_BPF kernel option to be set
+else runc can not start containers.
+
+check-config.sh script checks if the CONFIG_CGROUP_BPF option
+is set. As this is available from kerenl 4.15 a version gaurd
+is included to check CONFIG_CGROUP_BPF. The check is present
+under Optional Features.
+
+Closes #3547
+
+Signed-off-by: dharmicksai <dharmicksaik@gmail.com>
+---
+ script/check-config.sh | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/script/check-config.sh b/script/check-config.sh
+index ec8bc63a57..e3bde47606 100755
+--- a/script/check-config.sh
++++ b/script/check-config.sh
+@@ -274,6 +274,10 @@ if kernel_lt 5 0; then
+ 	check_flags IOSCHED_CFQ CFQ_GROUP_IOSCHED
+ fi
+ 
++if ! kernel_lt 4 14; then
++	check_flags CGROUP_BPF
++fi
++
+ flags=(
+ 	BLK_CGROUP BLK_DEV_THROTTLING
+ 	CGROUP_PERF