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sched/cputime: Convert kcpustat to nsecs

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Kernel CPU stats are stored in cputime_t which is an architecture
defined type, and hence a bit opaque and requiring accessors and mutators
for any operation.

Converting them to nsecs simplifies the code and is one step toward
the removal of cputime_t in the core code.

Signed-off-by: Frederic Weisbecker <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Martin Schwidefsky <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: Fenghua Yu <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Rik van Riel <[email protected]>
Cc: Stanislaw Gruszka <[email protected]>
Cc: Wanpeng Li <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Frederic Weisbecker 2017-01-31 04:09:19 +01:00 • committed by Ingo Molnar
commit 7fb1327ee9
9 changed files with 61 additions and 65 deletions
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2
drivers/macintosh/rack-meter.c
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@ -91,7 +91,7 @@ static inline cputime64_t get_cpu_idle_time(unsigned int cpu)
if (rackmeter_ignore_nice)
retval += kcpustat_cpu(cpu).cpustat[CPUTIME_NICE];
return retval;
return nsecs_to_cputime64(retval);
}
static void rackmeter_setup_i2s(struct rackmeter *rm)