ae8dda5c47
If the architecture doesn't provide an implementation of nsecs_to_cputime(), the cputime accounting core uses a default one that converts the nanoseconds to jiffies. However this only makes sense if we use the jiffies based cputime. For now it doesn't matter much because this API is only called on code that uses jiffies based cputime accounting. But the code may evolve and this API may be used more broadly in the future. Keeping this default implementation around is very error prone as it may introduce a bug and hide it on architectures that don't override this API. Fix this by moving this definition to the jiffies based cputime headers as it is the only place where it belongs to. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Li Zhong <zhong@linux.vnet.ibm.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de>
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
#ifndef _ASM_GENERIC_CPUTIME_JIFFIES_H
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#define _ASM_GENERIC_CPUTIME_JIFFIES_H
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typedef unsigned long __nocast cputime_t;
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#define cputime_one_jiffy jiffies_to_cputime(1)
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#define cputime_to_jiffies(__ct) (__force unsigned long)(__ct)
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#define cputime_to_scaled(__ct) (__ct)
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#define jiffies_to_cputime(__hz) (__force cputime_t)(__hz)
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typedef u64 __nocast cputime64_t;
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#define cputime64_to_jiffies64(__ct) (__force u64)(__ct)
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#define jiffies64_to_cputime64(__jif) (__force cputime64_t)(__jif)
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/*
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* Convert nanoseconds to cputime
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*/
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#define nsecs_to_cputime64(__nsec) \
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jiffies64_to_cputime64(nsecs_to_jiffies64(__nsec))
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#define nsecs_to_cputime(__nsec) \
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jiffies_to_cputime(nsecs_to_jiffies(__nsec))
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/*
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* Convert cputime to microseconds and back.
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*/
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#define cputime_to_usecs(__ct) \
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jiffies_to_usecs(cputime_to_jiffies(__ct))
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#define usecs_to_cputime(__usec) \
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jiffies_to_cputime(usecs_to_jiffies(__usec))
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#define usecs_to_cputime64(__usec) \
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jiffies64_to_cputime64(nsecs_to_jiffies64((__usec) * 1000))
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/*
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* Convert cputime to seconds and back.
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*/
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#define cputime_to_secs(jif) (cputime_to_jiffies(jif) / HZ)
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#define secs_to_cputime(sec) jiffies_to_cputime((sec) * HZ)
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/*
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* Convert cputime to timespec and back.
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*/
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#define timespec_to_cputime(__val) \
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jiffies_to_cputime(timespec_to_jiffies(__val))
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#define cputime_to_timespec(__ct,__val) \
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jiffies_to_timespec(cputime_to_jiffies(__ct),__val)
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/*
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* Convert cputime to timeval and back.
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*/
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#define timeval_to_cputime(__val) \
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jiffies_to_cputime(timeval_to_jiffies(__val))
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#define cputime_to_timeval(__ct,__val) \
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jiffies_to_timeval(cputime_to_jiffies(__ct),__val)
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/*
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* Convert cputime to clock and back.
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*/
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#define cputime_to_clock_t(__ct) \
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jiffies_to_clock_t(cputime_to_jiffies(__ct))
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#define clock_t_to_cputime(__x) \
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jiffies_to_cputime(clock_t_to_jiffies(__x))
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/*
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* Convert cputime64 to clock.
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*/
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#define cputime64_to_clock_t(__ct) \
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jiffies_64_to_clock_t(cputime64_to_jiffies64(__ct))
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#endif
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