From: Wanpeng Li <wanpeng.li@linux.intel.com>
Date: Wed, 26 Nov 2014 00:44:01 +0000 (+0800)
Subject: sched/deadline: Fix hrtick for a non-leftmost task
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~163^2~7
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a7bebf488791aa1036f3e6629daf01d01f705dcb;p=pandora-kernel.git

sched/deadline: Fix hrtick for a non-leftmost task

After update_curr_dl() the current task might not be the leftmost task
anymore. In that case do not start a new hrtick for it.

In this case NEED_RESCHED will be set and the next schedule will start
the hrtick for the new task if and when appropriate.

Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com>
Acked-by: Juri Lelli <juri.lelli@arm.com>
[ Rewrote the changelog and comment. ]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Kirill Tkhai <ktkhai@parallels.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1416962647-76792-2-git-send-email-wanpeng.li@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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