From: Wanpeng Li <wanpeng.li@linux.intel.com>
Date: Thu, 30 Oct 2014 22:39:31 +0000 (+0800)
Subject: sched/rt: Clean up check_preempt_equal_prio()
X-Git-Tag: omap-for-v3.20/drop-legacy-3517~162^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=308a623a40ce168eb234ea82c2bd13ff85a098d9;p=pandora-kernel.git

sched/rt: Clean up check_preempt_equal_prio()

This patch checks if current can be pushed/pulled somewhere else
in advance to make logic clear, the same behavior as dl class.

- If current can't be migrated, useless to reschedule, let's hope
  task can move out.
- If task is migratable, so let's not schedule it and see if it
  can be pushed or pulled somewhere else.

Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Juri Lelli <juri.lelli@arm.com>
Cc: Kirill Tkhai <ktkhai@parallels.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1414708776-124078-1-git-send-email-wanpeng.li@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

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