Eric Lee / smarc-ti-linux-kernel

13 Mar, 2014

2 commits

  • d8a9ce3f8   cputime: Bring cputime -> nsecs conversion ... Browse Code »

    We already have nsecs_to_cputime(). Now we need to be able to convert
    the other way around in order to fix a bug on steal time accounting.

    Cc: Ingo Molnar
    Cc: Marcelo Tosatti
    Cc: Peter Zijlstra
    Cc: Thomas Gleixner
    Acked-by: Rik van Riel
    Signed-off-by: Frederic Weisbecker

    Frederic Weisbecker
     
  • bfc3f0281   cputime: Default implementation of nsecs -> cputime conversion ... Browse Code »

    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
    Cc: Marcelo Tosatti
    Cc: Peter Zijlstra
    Cc: Thomas Gleixner
    Acked-by: Rik van Riel
    Signed-off-by: Frederic Weisbecker

    Frederic Weisbecker