在 2022/1/24 9:03, yiyuchangchun@126.com 写道:
From: Michal Koutný <mkoutny@suse.com>
mainline inclusion from mainline-v5.12-rc1 commit da70862efe0065bada33d67a903270cdbbaf07d9 issue: #I4RVJ4 CVE: CVE-2021-4197
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
Signed-off-by: Yu Changchun <yuchangchun1@huawei.com> --------------------------------
The functions cgroup_threads_write and cgroup_procs_write are almost identical. In order to reduce duplication, factor out the common code in similar fashion we already do for other threadgroup/task functions. No functional changes are intended.
Suggested-by: Hao Lee <haolee.swjtu@gmail.com> Signed-off-by: Michal Koutný <mkoutny@suse.com> Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com> Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Lu Jialin <lujialin4@huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> Signed-off-by: Yu Changchun <yuchangchun1@huawei.com> --- kernel/cgroup/cgroup.c | 55 +++++++++++------------------------------- 1 file changed, 14 insertions(+), 41 deletions(-)
Reviewed-by: Wei Yongjun <weiyongjun1@huawei.com>