From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Fri, 19 Nov 2010 19:37:53 +0000 (+0100)
Subject: cpu: Remove incorrect BUG_ON
X-Git-Tag: v2.6.38-rc1~489^2~17
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=51a96c77815e7f139892a6e9c8275a50e9baebdf;p=pandora-kernel.git

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>
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