linux-yocto: add cgroup-hugetlb config

Add kernel config fragment for CONFIG_CGROUP_HUGETLB

This is a recommended config for Kubernetes and k8s
will throw a warning if it is not present.

Signed-off-by: Tim Orling <ticotimo@gmail.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>

3 files changed, 11 insertions, 0 deletions

diff --git a/recipes-kernel/linux/linux-yocto/cgroup-hugetlb.cfg b/recipes-kernel/linux/linux-yocto/cgroup-hugetlb.cfg
new file mode 100644
index 00000000..417ca249
--- /dev/null
+++ b/recipes-kernel/linux/linux-yocto/cgroup-hugetlb.cfg
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: MIT
+#
+# This requires CONFIG_HUGETLBFS
+
+CONFIG_CGROUP_HUGETLB=y
diff --git a/recipes-kernel/linux/linux-yocto/cgroup-hugetlb.scc b/recipes-kernel/linux/linux-yocto/cgroup-hugetlb.scc
new file mode 100644
index 00000000..7d1f9997
--- /dev/null
+++ b/recipes-kernel/linux/linux-yocto/cgroup-hugetlb.scc
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: MIT
+define KFEATURE_DESCRIPTION "Enable hugetlb cgroup"
+define KFEATURE_COMPATIBILITY all
+
+kconf non-hardware cgroup-hugetlb.cfg
diff --git a/recipes-kernel/linux/linux-yocto_virtualization.inc b/recipes-kernel/linux/linux-yocto_virtualization.inc
index f050b3fa..42a10b35 100644
--- a/recipes-kernel/linux/linux-yocto_virtualization.inc
+++ b/recipes-kernel/linux/linux-yocto_virtualization.inc
@@ -5,6 +5,7 @@ SRC_URI += "file://xt-checksum.scc \
             file://vswitch.scc \
             file://lxc.scc \
             file://docker.scc \
+            file://cgroup-hugetlb.scc \
             "
 KERNEL_FEATURES_append = " ${@bb.utils.contains('DISTRO_FEATURES', 'kvm', 'features/kvm/qemu-kvm-enable.scc', '', d)}"