sched: Use swap() macro in scale_stime()
Simple cleanup. Reported-by: NPeter Zijlstra <peterz@infradead.org> Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/r/1367501673-6563-1-git-send-email-sgruszka@redhat.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
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