| From | Frederic Weisbecker <> | Subject | [RFC PATCH 06/30] s390: Introduce cputime64_to_nsecs() | Date | Fri, 28 Nov 2014 19:23:36 +0100 |
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This will be needed for the conversion of kernel stat to nsecs.
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> --- arch/s390/include/asm/cputime.h | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/arch/s390/include/asm/cputime.h b/arch/s390/include/asm/cputime.h index 820b38a..75ba96f 100644 --- a/arch/s390/include/asm/cputime.h +++ b/arch/s390/include/asm/cputime.h @@ -59,6 +59,11 @@ static inline cputime64_t jiffies64_to_cputime64(const u64 jif) return (__force cputime64_t)(jif * (CPUTIME_PER_SEC / HZ)); } +static inline u64 cputime64_to_nsecs(cputime64_t cputime) +{ + return (__force u64)cputime * CPUTIME_PER_USEC * NSEC_PER_USEC; +} + /* * Convert cputime to microseconds and back. */ -- 2.1.3
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