tree 64388fce480b43d0588d108da9e4c526421486cf
parent 2e01f4740a874b6085da6ebf541e7ffde9a72bf2
author Peter Zijlstra <a.p.zijlstra@chello.nl> 1290195473 +0100
committer Ingo Molnar <mingo@elte.hu> 1290504548 +0100

cpu: Remove incorrect BUG_ON

Oleg mentioned that there is no actual guarantee the dying cpu's
migration thread is actually finished running when we get there, so
replace the BUG_ON() with a spinloop waiting for it.

Reported-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>