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Commit 7b0834c2 authored by Gautham R Shenoy's avatar Gautham R Shenoy Committed by Linus Torvalds
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Remove kthread_bind() call from _cpu_down() 



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: default avatarGautham R Shenoy <ego@in.ibm.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 10ab825b

kernel/cpu.c

+0 −4
Original line number Diff line number Diff line
@@ -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();