tree e4bc99753f610481524943230951e9fcdf744208
parent dc6e0818bc9a0336d9accf3ea35d146d72aa7a18
author Chengming Zhou <zhouchengming@bytedance.com> 1645334066 +0800
committer Peter Zijlstra <peterz@infradead.org> 1646147918 +0100

sched/cpuacct: Remove redundant RCU read lock

The cpuacct_account_field() and it's cgroup v2 wrapper
cgroup_account_cputime_field() is only called from cputime
in task_group_account_field(), which is already in RCU read-side
critical section. So remove these redundant RCU read lock.

Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220220051426.5274-3-zhouchengming@bytedance.com