Unverified Commit d2a40c79 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!12378 cgroup: Protect css->cgroup write under css_set_lock 

Merge Pull Request from: @ci-robot 
 
PR sync from: Chen Ridong <chenridong@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/4BTUZCBEOOLJJK4AFAENC5RGK7E2GDQX/ 
 
https://gitee.com/openeuler/kernel/issues/IAYN0Z 
 
Link:https://gitee.com/openeuler/kernel/pulls/12378

 

Reviewed-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
Signed-off-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
parents fc5b1a61 7a31b44d

kernel/cgroup/cgroup.c

+1 −1
Original line number Diff line number Diff line
@@ -1717,9 +1717,9 @@ int rebind_subsystems(struct cgroup_root *dst_root, u16 ss_mask) 
		RCU_INIT_POINTER(scgrp->subsys[ssid], NULL);

		rcu_assign_pointer(dcgrp->subsys[ssid], css);

		ss->root = dst_root;

		css->cgroup = dcgrp;



		spin_lock_irq(&css_set_lock);

		css->cgroup = dcgrp;

		WARN_ON(!list_empty(&dcgrp->e_csets[ss->id]));

		list_for_each_entry_safe(cset, cset_pos, &scgrp->e_csets[ss->id],

					 e_cset_node[ss->id]) {