The architectures that override cputime_t (s390, ppc) don't provide any version of nsecs_to_cputime(). Indeed this cputime_t implementation by backend only happens when CONFIG_VIRT_CPU_ACCOUNTING_NATIVE=y under which the core code doesn't make any use of nsecs_to_cputime(). At least for now. We are going to make a broader use of it so lets provide a default version with a per usecs granularity. It should be good enough for most usecases. Cc: Ingo Molnar <mingo@kernel.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Acked-by: Rik van Riel <riel@redhat.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
12 lines
225 B
C
12 lines
225 B
C
#ifndef __LINUX_CPUTIME_H
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#define __LINUX_CPUTIME_H
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#include <asm/cputime.h>
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#ifndef nsecs_to_cputime
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# define nsecs_to_cputime(__nsecs) \
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usecs_to_cputime((__nsecs) / NSEC_PER_USEC)
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#endif
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#endif /* __LINUX_CPUTIME_H */
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