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Add COUNTER_U64_SYSINIT().
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Authored by markj on Mar 5 2020, 7:11 PM.
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Details

Summary

This is the same idea as MTX_SYSINIT and friends: register a global
counter for initialization when the counter(9) subsystem is ready,
instead of having to write a custom sysinit function.

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Build 27653: arc lint + arc unit

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kib added inline comments.
sys/sys/counter.h
78

I am somewhat curious about selection of the si_sub there.

This revision is now accepted and ready to land.Mar 5 2020, 9:25 PM
sys/sys/counter.h
78

It is just inherited from the existing sysinits which initialize counters. It could be moved earlier, I think the only prerequisite is that the pcpu zones are initialized.

  • Add COUNTER_U64_DEFINE_EARLY.
  • Add SI_SUB_COUNTER to make initialization ordering more explicit.
This revision now requires review to proceed.Mar 6 2020, 3:53 PM
This revision is now accepted and ready to land.Mar 6 2020, 4:22 PM