From: Guillaume Chazarain <guichaz@yahoo.fr>
Date: Sat, 19 Apr 2008 17:44:57 +0000 (+0200)
Subject: sched: fix rq->clock overflows detection with CONFIG_NO_HZ
X-Git-Tag: v2.6.26-rc1~1132^2~58
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=15934a37324f32e0fda633dc7984a671ea81cd75;p=pandora-kernel.git

sched: fix rq->clock overflows detection with CONFIG_NO_HZ

When using CONFIG_NO_HZ, rq->tick_timestamp is not updated every TICK_NSEC.
We check that the number of skipped ticks matches the clock jump seen in
__update_rq_clock().

Signed-off-by: Guillaume Chazarain <guichaz@yahoo.fr>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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