s390/cputime: provide archicture specific cputime_to_nsecs

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The generic cputime_to_nsecs function first converts the cputime
to micro-seconds and then multiplies the result with 1000. This
looses some bits of accuracy, provide our own version of
cputime_to_nsecs that does not loose precision.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Martin Schwidefsky 2017-03-01 09:21:10 +01:00

parent 3c915bdc17

commit e53051e757

1 changed files with 7 additions and 1 deletions

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arch/s390/include/asm/cputime.h

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