[PATCH 4.12 195/196] smp/hotplug: Move unparking of percpu threads to the control CPU

4.12-stable review patch. If anyone has any objections, please let me know. -- From: Thomas Gleixner commit 9cd4f1a4e7a858849e889a081a99adff83e08e4c upstream. Vikram reported the following backtrace: BUG: scheduling while atomic: swapper/7/0/0x0002

[PATCH 4.12 195/196] smp/hotplug: Move unparking of percpu threads to the control CPU

4.12-stable review patch. If anyone has any objections, please let me know. -- From: Thomas Gleixner commit 9cd4f1a4e7a858849e889a081a99adff83e08e4c upstream. Vikram reported the following backtrace: BUG: scheduling while atomic: swapper/7/0/0x0002 CPU: 7 PID: 0