!2468 fix cgroup poll UAF

Merge Pull Request from: @ci-robot 
 
PR sync from: Lu Jialin <lujialin4@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/FAVVAW537LWTEEVAUNQ6X75UWSAT4YI3/ 
Arnd Bergmann (1):
  kernfs: add stub helper for kernfs_generic_poll()

Randy Dunlap (1):
  sched/psi: Select KERNFS as needed

Suren Baghdasaryan (1):
  sched/psi: use kernfs polling functions for PSI trigger polling


-- 
2.34.1
 
https://gitee.com/openeuler/kernel/issues/I7DHPO 
 
Link:https://gitee.com/openeuler/kernel/pulls/2468

 

Reviewed-by: Jialin Zhang <zhangjialin11@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>