From: Lu Jialin <lujialin4@huawei.com> 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 structures 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: Lu Jialin <lujialin4@huawei.com> Reviewed-by: weiyang wang <wangweiyang2@huawei.com> Reviewed-by: Xiu Jianfeng <xiujianfeng@huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> --- include/linux/bpf-cgroup.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/include/linux/bpf-cgroup.h b/include/linux/bpf-cgroup.h index 5120ca319ff4..7014d2ade050 100644 --- a/include/linux/bpf-cgroup.h +++ b/include/linux/bpf-cgroup.h @@ -9,6 +9,7 @@ #include <linux/percpu-refcount.h> #include <linux/rbtree.h> #include <uapi/linux/bpf.h> +#include <linux/kabi.h> struct sock; struct sockaddr; @@ -88,6 +89,23 @@ struct cgroup_bpf { /* cgroup_bpf is released using a work queue */ struct work_struct release_work; + + KABI_RESERVE(1) + KABI_RESERVE(2) + KABI_RESERVE(3) + KABI_RESERVE(4) + KABI_RESERVE(5) + KABI_RESERVE(6) + KABI_RESERVE(7) + KABI_RESERVE(8) + KABI_RESERVE(9) + KABI_RESERVE(10) + KABI_RESERVE(11) + KABI_RESERVE(12) + KABI_RESERVE(13) + KABI_RESERVE(14) + KABI_RESERVE(15) + KABI_RESERVE(16) }; int cgroup_bpf_inherit(struct cgroup *cgrp); -- 2.20.1