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time: Add nsecs_to_cputime64 interface for asm-generic

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Add nsecs_to_cputime64 interface. This is used in following patches that
updates cpu irq stat based on ns granularity info in IRQ_TIME_ACCOUNTING.

Tested-by: Shaun Ruffell <sruffell@digium.com>
Signed-off-by: Venkatesh Pallipadi <venki@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1292980144-28796-3-git-send-email-venki@google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Venkatesh Pallipadi
2010-12-21 17:09:01 -08:00
committed by Ingo Molnar
parent 4dd53d891c
commit a1dabb6bff
3 changed files with 25 additions and 2 deletions
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include/asm-generic/cputime.h
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@ -30,6 +30,9 @@ typedef u64 cputime64_t;
#define cputime64_to_jiffies64(__ct) (__ct)
#define jiffies64_to_cputime64(__jif) (__jif)
#define cputime_to_cputime64(__ct) ((u64) __ct)
#define cputime64_gt(__a, __b) ((__a) > (__b))
#define nsecs_to_cputime64(__ct) nsecs_to_jiffies64(__ct)
/*