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Date: Sun, 1 May 2011 18:19:07 -0700 From: Nikhil Rao <ncrao@...gle.com> To: Ingo Molnar <mingo@...e.hu>, Peter Zijlstra <peterz@...radead.org>, Mike Galbraith <efault@....de> Cc: linux-kernel@...r.kernel.org, "Nikunj A. Dadhania" <nikunj@...ux.vnet.ibm.com>, Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>, Stephan Barwolf <stephan.baerwolf@...ilmenau.de>, Nikhil Rao <ncrao@...gle.com> Subject: [PATCH v1 09/19] sched: update division in cpu_avg_load_per_task to use div_u64 This patch updates the division in cpu_avg_load_per_task() to use div_u64, so that it works on 32-bit. We do not convert avg_load_per_task to u64 since this can be atmost 2^28, and fits into unsigned long on 32-bit. Signed-off-by: Nikhil Rao <ncrao@...gle.com> --- kernel/sched.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/kernel/sched.c b/kernel/sched.c index a49ef0e..08dcd24 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -1524,7 +1524,7 @@ static unsigned long cpu_avg_load_per_task(int cpu) unsigned long nr_running = ACCESS_ONCE(rq->nr_running); if (nr_running) - rq->avg_load_per_task = rq->load.weight / nr_running; + rq->avg_load_per_task = div_u64(rq->load.weight, nr_running); else rq->avg_load_per_task = 0; -- 1.7.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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