Check for fair tasks number to decide, that we've pulled a task.
rq's nr_running may contain throttled RT tasks.
Signed-off-by: NKirill Tkhai <ktkhai@parallels.com>
Signed-off-by: NPeter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1394118975.19290.104.camel@tkhaiSigned-off-by: NIngo Molnar <mingo@kernel.org>