kabi: reserve space for cgroup_bpf_attach_type and bpf_cgroup_storage_type

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4GII8?from=project-issue
CVE: NA

--------

We reserve some fields beforehand for cgroup_bpf_attach_type and bpf_cgroup_storage_type
prone to change, therefore, we can hot add/change features of bpf cgroup
with this enhancement.

After reserving, normally cache does not matter as the reserved fields
are not accessed at all.
Signed-off-by: NLu Jialin <lujialin4@huawei.com>
Reviewed-by: Nweiyang wang <wangweiyang2@huawei.com>
Reviewed-by: NWei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Wei Yongjun<weiyongjun1@huawei.com>
Reviewed-by: Nweiyang wang <wangweiyang2@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

include/linux/bpf-cgroup.h

@@ -49,6 +49,14 @@ enum cgroup_bpf_attach_type {
 	CGROUP_INET4_GETSOCKNAME,
 	CGROUP_INET6_GETSOCKNAME,
 	CGROUP_INET_SOCK_RELEASE,
+	CGROUP_ATTACH_TYPE_KABI_RESERVE_1,
+	CGROUP_ATTACH_TYPE_KABI_RESERVE_2,
+	CGROUP_ATTACH_TYPE_KABI_RESERVE_3,
+	CGROUP_ATTACH_TYPE_KABI_RESERVE_4,
+	CGROUP_ATTACH_TYPE_KABI_RESERVE_5,
+	CGROUP_ATTACH_TYPE_KABI_RESERVE_6,
+	CGROUP_ATTACH_TYPE_KABI_RESERVE_7,
+	CGROUP_ATTACH_TYPE_KABI_RESERVE_8,
 	MAX_CGROUP_BPF_ATTACH_TYPE
 };
 

include/linux/bpf.h

@@ -491,6 +491,14 @@ struct bpf_prog_offload {
 enum bpf_cgroup_storage_type {
 	BPF_CGROUP_STORAGE_SHARED,
 	BPF_CGROUP_STORAGE_PERCPU,
+	BPF_CGROUP_STORAGE_KABI_RESERVE_1,
+	BPF_CGROUP_STORAGE_KABI_RESERVE_2,
+	BPF_CGROUP_STORAGE_KABI_RESERVE_3,
+	BPF_CGROUP_STORAGE_KABI_RESERVE_4,
+	BPF_CGROUP_STORAGE_KABI_RESERVE_5,
+	BPF_CGROUP_STORAGE_KABI_RESERVE_6,
+	BPF_CGROUP_STORAGE_KABI_RESERVE_7,
+	BPF_CGROUP_STORAGE_KABI_RESERVE_8,
 	__BPF_CGROUP_STORAGE_MAX
 };