From 15934a37324f32e0fda633dc7984a671ea81cd75 Mon Sep 17 00:00:00 2001
From: Guillaume Chazarain <guichaz@yahoo.fr>
Date: Sat, 19 Apr 2008 19:44:57 +0200
Subject: [PATCH] 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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