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    SubjectRe: [RFC][PATCH 3/3] Try to convert non-trivial clocksources to clocksource_register_hz
    On Fri, 30 Apr 2010 18:36:25 -0700
    John Stultz <johnstul@us.ibm.com> wrote:

    > NOT FOR INCLUSION!
    > NOT FOR INCLUSION!
    >
    > I've already gone through and converted the rest of the clocksources
    > to use clocksource_register_hz, and I'll be hopefully pushing those
    > to arch maintainers for 2.6.36-2.6.37.
    >
    > However, in going through all the clocksources, I hit a few
    > non-trivial conversions and wanted to bring them up on the list
    > early so they can be handled soon.
    >
    > The following patch tries to convert the non-trival clocksources
    > to use clocksource_register_hz/khz. It is likely broken. I will
    > need arch maintainer help to figure out the best way to resovle
    > these clocksources.
    >
    > This patch requires the previous "Add clocksource_register_hz/khz
    > interface" patch to build.
    >
    > So any help maintainers can provide in finding solutions to
    > break the mult/shift assumptions in the arch code would be
    > greatly appreciated!
    >
    > thanks
    > -john
    >
    > NOT FOR INCLUSION!
    > NOT FOR INCLUSION!

    The s390 conversion to clocksource_register_khz looks good - at least
    the kilo hertz value is correct. Bit 2^12 of the TOD value are
    microseconds, which makes one millisecond (1000<<12).

    --
    blue skies,
    Martin.

    "Reality continues to ruin my life." - Calvin.



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