From: Srivatsa S. Bhat
Backport of upstream commit: e30a293e8ad7e6048d6d88bcc114094f964bd67b
https://jira.sw.ru/browse/PSBM-68620
Fixes race between CPU add/del and per-cpu notifier add/del.
Below is original commit message:
On 18.07.2017 16:51, Stanislav Kinsburskiy wrote:
> From: Srivatsa S. Bhat
>
> Backport of upstream commit: e30a293e8ad7e6048d6d88bcc114094f964bd67b
>
> https://jira.sw.ru/browse/PSBM-68620
>
> Fixes race between CPU add/del and per-cpu notifier add/del.
>
> Below is original commit message:
>