From: Gautham R Shenoy We are anyway kthread_stop()ping other per-cpu kernel threads after move_task_off_dead_cpu(), so we can do it with the stop_machine_run thread as well. I just checked with Vatsa if there was any subtle reason why they had put in the kthread_bind() in cpu.c. Vatsa cannot seem to recollect any and I can't see any. So let us just remove the kthread_bind. Signed-off-by: Gautham R Shenoy Cc: Oleg Nesterov Cc: "Eric W. Biederman" Cc: "Rafael J. Wysocki" Signed-off-by: Andrew Morton --- kernel/cpu.c | 4 ---- 1 files changed, 4 deletions(-) diff -puN kernel/cpu.c~remvoe-kthread_bind-call-from-_cpu_down kernel/cpu.c --- a/kernel/cpu.c~remvoe-kthread_bind-call-from-_cpu_down +++ a/kernel/cpu.c @@ -175,10 +175,6 @@ static int _cpu_down(unsigned int cpu) /* This actually kills the CPU. */ __cpu_die(cpu); - /* Move it here so it can run. */ - kthread_bind(p, get_cpu()); - put_cpu(); - /* CPU is completely dead: tell everyone. Too late to complain. */ if (raw_notifier_call_chain(&cpu_chain, CPU_DEAD, hcpu) == NOTIFY_BAD) BUG(); _