Messages in this thread | | | Date | Sat, 26 Nov 2005 15:50:43 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH 0/13] Time: Generic Timeofday Subsystem (v B11) |
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* john stultz <johnstul@us.ibm.com> wrote:
> All, > The following patchset applies against 2.6.15-rc1-mm2 and > provides a generic timekeeping subsystem that is independent of the > timer interrupt. [...]
While we are at introducing and moving around code, i've done a big cleanup of all code touched/introduced by your patchset. The gtod-B11-cleanup.tar.gz file containing the cleanup patch-series can be found at:
http://redhat.com/~mingo/gtod-patches/
(i'll send the patches individually as well, as replies to your mails).
one side-effect of the cleanups is that the core Linux NTP code has now become quite readable, for the first time in history ;-)
the cleanups are also included in the 2.6.14-rt18 tree, and i've tested them on a UP and on an SMP box. The cleanups are 99% coding style related, but while reviewing the code i've also inserted a few TODO entries:
+ /* TODO: bogus limit of 4 CPUs? --mingo */ +/* TODO: why a seqlock? It's only write-locked, so should be a spinlock. */ + /* TODO: is 2*time_constant correct? --mingo */ + * TODO: shouldnt we write-lock xtime_lock below, and then + * TODO: shouldnt txc->time be filled in here, within ntp_lock and
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