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sched: remove do_div() from __sched_slice()
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Fri, 25 Jan 2008 20:08:21 +0000 (21:08 +0100)
committerIngo Molnar <mingo@elte.hu>
Fri, 25 Jan 2008 20:08:21 +0000 (21:08 +0100)
Yanmin Zhang noticed a nice optimization:

  p = l * nr / nl, nl = l/g -> p = g * nr

which eliminates a do_div() from __sched_period().

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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