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SubjectRe: [RFC PATCH 5/6] sched: Remove needless round trip nsecs <-> tick conversion of steal time
On 03/06/2014 12:56 PM, Frederic Weisbecker wrote:
> When update_rq_clock_task() accounts the pending steal time for a task,
> it converts the steal delta from nsecs to tick then from tick to nsecs.
>
> There is no apparent good reason for doing that though because both
> the task clock and the prev steal delta are u64 and store values
> in nsecs.
>
> So lets remove the needless conversion.
>
> Cc: Ingo Molnar <mingo@kernel.org>
> Cc: Marcelo Tosatti <mtosatti@redhat.com>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>

Acked-by: Rik van Riel <riel@redhat.com>



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