sched: Remove needless round trip nsecs <-> tick conversion of steal time

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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>
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>

...

This commit is contained in:

Frederic Weisbecker 2014-03-05 17:05:57 +01:00

parent dee08a72de

commit 300a9d887e

2 changed files with 0 additions and 16 deletions

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6

kernel/sched/core.c

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10

kernel/sched/sched.h

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